{"classifier_version":"1.4.0","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by ARIN, the RIPE NCC, APNIC, LACNIC, AFRINIC, the Number Resource Organization (NRO), or any other Regional Internet Registry. Classifications and hold-expiration dates are evidence-based interpretations and do not constitute confirmation that a resource is available for issuance or transfer.","resource":"151.216.40.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/","statistics_now":{"registry":"RIPE NCC","status":"reserved"},"current_holder":{"rir":"RIPE NCC","org":null,"how":"The RIPE NCC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"b720f9db7d3a64a8","registry":"RIPE NCC","report_date":"2025-04-01","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:16:15+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-b720f9db7d3a64a8","report_page":"https://rirtracker.com/ripe/reports/2025-04-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 assigned on 2025-03-31, reserved on 2025-04-01","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2025-09-28","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2025-03-21) on 2025-03-31 and reserved on 2025-04-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2025-09-28. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250401.bz2","retrieved_at":"2026-10-13T00:56:06+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 assigned on 2025-03-31, reserved on 2025-04-01"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250331.bz2","retrieved_at":"2026-10-13T00:56:03+00:00","summary":"RIPE NCC delegated statistics 2025-03-31 (produced 2025-03-31T21:59:59+00:00), before the change: assigned (dated 2025-03-21)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250401.bz2","retrieved_at":"2026-10-13T00:56:06+00:00","summary":"RIPE NCC delegated statistics 2025-04-01 (produced 2025-04-01T21:59:59+00:00), after the change: reserved"}]},{"event_id":"77c06c191625edf2","registry":"RIPE NCC","report_date":"2025-03-21","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:16:11+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-77c06c191625edf2","report_page":"https://rirtracker.com/ripe/reports/2025-03-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 reserved on 2025-03-20, assigned on 2025-03-21","explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2025-03-20 and assigned (dated 2025-03-21) on 2025-03-21. The tracker saw this range removed from registration on 2024-07-31 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250321.bz2","retrieved_at":"2026-10-13T00:55:10+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 reserved on 2025-03-20, assigned on 2025-03-21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250320.bz2","retrieved_at":"2026-10-13T00:55:07+00:00","summary":"RIPE NCC delegated statistics 2025-03-20 (produced 2025-03-20T22:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250321.bz2","retrieved_at":"2026-10-13T00:55:10+00:00","summary":"RIPE NCC delegated statistics 2025-03-21 (produced 2025-03-21T22:59:59+00:00), after the change: assigned (dated 2025-03-21)"}]},{"event_id":"d4a9e977f37ec5d0","registry":"RIPE NCC","report_date":"2024-07-31","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:15:07+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-d4a9e977f37ec5d0","report_page":"https://rirtracker.com/ripe/reports/2024-07-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 assigned on 2024-07-30, reserved on 2024-07-31","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2025-01-27","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2024-07-15) on 2024-07-30 and reserved on 2024-07-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2025-01-27. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240731.bz2","retrieved_at":"2026-10-13T00:36:46+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 assigned on 2024-07-30, reserved on 2024-07-31"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240730.bz2","retrieved_at":"2026-10-13T00:36:43+00:00","summary":"RIPE NCC delegated statistics 2024-07-30 (produced 2024-07-30T21:59:59+00:00), before the change: assigned (dated 2024-07-15)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240731.bz2","retrieved_at":"2026-10-13T00:36:46+00:00","summary":"RIPE NCC delegated statistics 2024-07-31 (produced 2024-07-31T21:59:59+00:00), after the change: reserved"}]},{"event_id":"ddd3b72e6c70f240","registry":"RIPE NCC","report_date":"2024-07-15","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:15:03+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-ddd3b72e6c70f240","report_page":"https://rirtracker.com/ripe/reports/2024-07-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 reserved on 2024-07-14, assigned on 2024-07-15","explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2024-07-14 and assigned (dated 2024-07-15) on 2024-07-15. The tracker saw this range removed from registration on 2023-09-12 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240715.bz2","retrieved_at":"2026-10-13T00:35:13+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 reserved on 2024-07-14, assigned on 2024-07-15"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240714.bz2","retrieved_at":"2026-10-13T00:35:10+00:00","summary":"RIPE NCC delegated statistics 2024-07-14 (produced 2024-07-14T21:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2024/delegated-ripencc-extended-20240715.bz2","retrieved_at":"2026-10-13T00:35:13+00:00","summary":"RIPE NCC delegated statistics 2024-07-15 (produced 2024-07-15T21:59:59+00:00), after the change: assigned (dated 2024-07-15)"}]},{"event_id":"66b6bdddff8302df","registry":"RIPE NCC","report_date":"2023-09-12","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:55+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-66b6bdddff8302df","report_page":"https://rirtracker.com/ripe/reports/2023-09-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 assigned on 2023-09-11, reserved on 2023-09-12","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2024-03-10","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2023-08-11) on 2023-09-11 and reserved on 2023-09-12. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2024-03-10. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230912.bz2","retrieved_at":"2026-10-13T00:11:52+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 assigned on 2023-09-11, reserved on 2023-09-12"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230911.bz2","retrieved_at":"2026-10-13T00:11:26+00:00","summary":"RIPE NCC delegated statistics 2023-09-11 (produced 2023-09-11T21:59:59+00:00), before the change: assigned (dated 2023-08-11)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230912.bz2","retrieved_at":"2026-10-13T00:11:52+00:00","summary":"RIPE NCC delegated statistics 2023-09-12 (produced 2023-09-12T21:59:59+00:00), after the change: reserved"}]},{"event_id":"3856c833715439aa","registry":"RIPE NCC","report_date":"2023-08-11","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:47+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-3856c833715439aa","report_page":"https://rirtracker.com/ripe/reports/2023-08-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 reserved on 2023-08-10, assigned on 2023-08-11","explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2023-08-10 and assigned (dated 2023-08-11) on 2023-08-11. The tracker saw this range removed from registration on 2022-09-09 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230811.bz2","retrieved_at":"2026-10-13T00:09:10+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 reserved on 2023-08-10, assigned on 2023-08-11"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230810.bz2","retrieved_at":"2026-10-13T00:09:07+00:00","summary":"RIPE NCC delegated statistics 2023-08-10 (produced 2023-08-10T21:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230811.bz2","retrieved_at":"2026-10-13T00:09:10+00:00","summary":"RIPE NCC delegated statistics 2023-08-11 (produced 2023-08-11T21:59:59+00:00), after the change: assigned (dated 2023-08-11)"}]},{"event_id":"6000867c77999510","registry":"RIPE NCC","report_date":"2016-06-01","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:01:13+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-6000867c77999510","report_page":"https://rirtracker.com/ripe/reports/2016-06-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 assigned on 2016-05-31, reserved on 2016-06-01","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2016-11-28","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2016-05-20) on 2016-05-31 and reserved on 2016-06-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2016-11-28. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160601.bz2","retrieved_at":"2026-10-12T20:57:06+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 assigned on 2016-05-31, reserved on 2016-06-01"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160531.bz2","retrieved_at":"2026-10-12T20:57:03+00:00","summary":"RIPE NCC delegated statistics 2016-05-31 (produced 2016-05-31T21:59:59+00:00), before the change: assigned (dated 2016-05-20)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160601.bz2","retrieved_at":"2026-10-12T20:57:06+00:00","summary":"RIPE NCC delegated statistics 2016-06-01 (produced 2016-06-01T21:59:59+00:00), after the change: reserved"}]},{"event_id":"c3abea5f0bc834bc","registry":"RIPE NCC","report_date":"2016-05-20","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:01:11+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-c3abea5f0bc834bc","report_page":"https://rirtracker.com/ripe/reports/2016-05-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 reserved on 2016-05-19, assigned on 2016-05-20","explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2016-05-19 and assigned (dated 2016-05-20) on 2016-05-20. The tracker saw this range removed from registration on 2015-09-21 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160520.bz2","retrieved_at":"2026-10-12T20:56:18+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 reserved on 2016-05-19, assigned on 2016-05-20"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160519.bz2","retrieved_at":"2026-10-12T20:56:15+00:00","summary":"RIPE NCC delegated statistics 2016-05-19 (produced 2016-05-19T21:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160520.bz2","retrieved_at":"2026-10-12T20:56:18+00:00","summary":"RIPE NCC delegated statistics 2016-05-20 (produced 2016-05-20T21:59:59+00:00), after the change: assigned (dated 2016-05-20)"}]},{"event_id":"214e0aebecb47027","registry":"RIPE NCC","report_date":"2015-04-07","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:29+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-214e0aebecb47027","report_page":"https://rirtracker.com/ripe/reports/2015-04-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 assigned on 2015-04-06, reserved on 2015-04-07","hold":{"hold_rule_source_url":"https://www.ripe.net/manage-ips-and-asns/resource-management/quarantine-for-returned-internet-number-resources","hold_rule_days":180,"estimated_hold_end":"2015-10-04","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2015-02-05) on 2015-04-06 and reserved on 2015-04-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2015-10-04. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20150407.bz2","retrieved_at":"2026-10-12T20:30:40+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 assigned on 2015-04-06, reserved on 2015-04-07"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20150406.bz2","retrieved_at":"2026-10-12T20:30:28+00:00","summary":"RIPE NCC delegated statistics 2015-04-06 (produced 2015-04-06T21:59:59+00:00), before the change: assigned (dated 2015-02-05)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20150407.bz2","retrieved_at":"2026-10-12T20:30:40+00:00","summary":"RIPE NCC delegated statistics 2015-04-07 (produced 2015-04-07T21:59:59+00:00), after the change: reserved"}]},{"event_id":"12662a975c36358c","registry":"RIPE NCC","report_date":"2015-02-05","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"151.216.40.0/22","start":"151.216.40.0","end":"151.216.43.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:15+00:00","page":"https://rirtracker.com/ip/151.216.40.0-151.216.43.255/#e-12662a975c36358c","report_page":"https://rirtracker.com/ripe/reports/2015-02-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.216.40.0-151.216.43.255.json","observed":"151.216.40.0/22 reserved on 2015-02-04, assigned on 2015-02-05","explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2015-02-04 and assigned (dated 2015-02-05) on 2015-02-05. The tracker saw this range removed from registration on 2014-09-03 (151.216.32.0/19), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20150205.bz2","retrieved_at":"2026-10-12T20:16:18+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 151.216.40.0/22 reserved on 2015-02-04, assigned on 2015-02-05"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20150204.bz2","retrieved_at":"2026-10-12T20:16:15+00:00","summary":"RIPE NCC delegated statistics 2015-02-04 (produced 2015-02-04T22:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20150205.bz2","retrieved_at":"2026-10-12T20:16:18+00:00","summary":"RIPE NCC delegated statistics 2015-02-05 (produced 2015-02-05T22:59:59+00:00), after the change: assigned (dated 2015-02-05)"}]}],"classification_history":{"b720f9db7d3a64a8":[{"raw_change_id":519737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:34:17+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2025-03-21) on 2025-03-31 and reserved on 2025-04-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2025-09-28. This does not confirm availability."},{"raw_change_id":519737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:26:11+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2025-03-21) on 2025-03-31 and reserved on 2025-04-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2025-09-28. This does not confirm availability."},{"raw_change_id":519737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:10:31+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2025-03-21) on 2025-03-31 and reserved on 2025-04-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2025-09-28. This does not confirm availability."},{"raw_change_id":519737,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:16:15+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2025-03-21) on 2025-03-31 and reserved on 2025-04-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2025-09-28. This does not confirm availability."}],"77c06c191625edf2":[{"raw_change_id":518882,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:33:54+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2025-03-20 and assigned (dated 2025-03-21) on 2025-03-21. The tracker saw this range removed from registration on 2024-07-31 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":518882,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:26:08+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2025-03-20 and assigned (dated 2025-03-21) on 2025-03-21. The tracker saw this range removed from registration on 2024-07-31 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":518882,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:10:27+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2025-03-20 and assigned (dated 2025-03-21) on 2025-03-21. The tracker saw this range removed from registration on 2024-07-31 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":518882,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:16:11+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2025-03-20 and assigned (dated 2025-03-21) on 2025-03-21. The tracker saw this range removed from registration on 2024-07-31 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."}],"d4a9e977f37ec5d0":[{"raw_change_id":505823,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:27:30+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2024-07-15) on 2024-07-30 and reserved on 2024-07-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2025-01-27. This does not confirm availability."},{"raw_change_id":505823,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:25:15+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2024-07-15) on 2024-07-30 and reserved on 2024-07-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2025-01-27. This does not confirm availability."},{"raw_change_id":505823,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:09:30+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2024-07-15) on 2024-07-30 and reserved on 2024-07-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2025-01-27. This does not confirm availability."},{"raw_change_id":505823,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:15:07+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2024-07-15) on 2024-07-30 and reserved on 2024-07-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2025-01-27. This does not confirm availability."}],"ddd3b72e6c70f240":[{"raw_change_id":505060,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:27:14+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2024-07-14 and assigned (dated 2024-07-15) on 2024-07-15. The tracker saw this range removed from registration on 2023-09-12 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":505060,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:25:12+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2024-07-14 and assigned (dated 2024-07-15) on 2024-07-15. The tracker saw this range removed from registration on 2023-09-12 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":505060,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:09:27+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2024-07-14 and assigned (dated 2024-07-15) on 2024-07-15. The tracker saw this range removed from registration on 2023-09-12 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":505060,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:15:03+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2024-07-14 and assigned (dated 2024-07-15) on 2024-07-15. The tracker saw this range removed from registration on 2023-09-12 (151.216.40.0/22), so it appears to have been issued again from the RIPE NCC's pool."}],"66b6bdddff8302df":[{"raw_change_id":489770,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:20:09+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2023-08-11) on 2023-09-11 and reserved on 2023-09-12. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2024-03-10. This does not confirm availability."},{"raw_change_id":489770,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:15+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2023-08-11) on 2023-09-11 and reserved on 2023-09-12. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2024-03-10. This does not confirm availability."},{"raw_change_id":489770,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:26+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2023-08-11) on 2023-09-11 and reserved on 2023-09-12. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2024-03-10. This does not confirm availability."},{"raw_change_id":489770,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:55+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2023-08-11) on 2023-09-11 and reserved on 2023-09-12. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2024-03-10. This does not confirm availability."}],"3856c833715439aa":[{"raw_change_id":487833,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:19:19+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2023-08-10 and assigned (dated 2023-08-11) on 2023-08-11. The tracker saw this range removed from registration on 2022-09-09 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":487833,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:08+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2023-08-10 and assigned (dated 2023-08-11) on 2023-08-11. The tracker saw this range removed from registration on 2022-09-09 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":487833,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:19+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2023-08-10 and assigned (dated 2023-08-11) on 2023-08-11. The tracker saw this range removed from registration on 2022-09-09 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":487833,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:47+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2023-08-10 and assigned (dated 2023-08-11) on 2023-08-11. The tracker saw this range removed from registration on 2022-09-09 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."}],"6000867c77999510":[{"raw_change_id":305807,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:58:33+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2016-05-20) on 2016-05-31 and reserved on 2016-06-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2016-11-28. This does not confirm availability."},{"raw_change_id":305807,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:13:51+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2016-05-20) on 2016-05-31 and reserved on 2016-06-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2016-11-28. This does not confirm availability."},{"raw_change_id":305807,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:57:15+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2016-05-20) on 2016-05-31 and reserved on 2016-06-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2016-11-28. This does not confirm availability."},{"raw_change_id":305807,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:01:13+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2016-05-20) on 2016-05-31 and reserved on 2016-06-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2016-11-28. This does not confirm availability."}],"c3abea5f0bc834bc":[{"raw_change_id":305078,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:58:10+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2016-05-19 and assigned (dated 2016-05-20) on 2016-05-20. The tracker saw this range removed from registration on 2015-09-21 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":305078,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:13:49+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2016-05-19 and assigned (dated 2016-05-20) on 2016-05-20. The tracker saw this range removed from registration on 2015-09-21 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":305078,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:57:13+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2016-05-19 and assigned (dated 2016-05-20) on 2016-05-20. The tracker saw this range removed from registration on 2015-09-21 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":305078,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:01:11+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2016-05-19 and assigned (dated 2016-05-20) on 2016-05-20. The tracker saw this range removed from registration on 2015-09-21 (151.216.40.0/23), so it appears to have been issued again from the RIPE NCC's pool."}],"214e0aebecb47027":[{"raw_change_id":280149,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:46:25+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2015-02-05) on 2015-04-06 and reserved on 2015-04-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2015-10-04. This does not confirm availability."},{"raw_change_id":280149,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:12:21+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2015-02-05) on 2015-04-06 and reserved on 2015-04-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2015-10-04. This does not confirm availability."},{"raw_change_id":280149,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:55:39+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2015-02-05) on 2015-04-06 and reserved on 2015-04-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the earliest estimated hold expiration is 2015-10-04. This does not confirm availability."},{"raw_change_id":280149,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:29+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 2015-02-05) on 2015-04-06 and reserved on 2015-04-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2015-10-04. This does not confirm availability."}],"12662a975c36358c":[{"raw_change_id":276575,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:44:36+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2015-02-04 and assigned (dated 2015-02-05) on 2015-02-05. The tracker saw this range removed from registration on 2014-09-03 (151.216.32.0/19), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":276575,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:12:09+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2015-02-04 and assigned (dated 2015-02-05) on 2015-02-05. The tracker saw this range removed from registration on 2014-09-03 (151.216.32.0/19), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":276575,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:55:26+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2015-02-04 and assigned (dated 2015-02-05) on 2015-02-05. The tracker saw this range removed from registration on 2014-09-03 (151.216.32.0/19), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":276575,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:15+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it reserved on 2015-02-04 and assigned (dated 2015-02-05) on 2015-02-05. The tracker saw this range removed from registration on 2014-09-03 (151.216.32.0/19), so it appears to have been issued again from the RIPE NCC's pool."}]},"arin_statistics_now":{"status":"not listed"}}