{"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":"170.83.56.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/170.83.56.0-170.83.57.255/","statistics_now":{"registry":"LACNIC","status":"reserved"},"current_holder":{"rir":"LACNIC","org":null,"how":"LACNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"c4712948aca814c8","registry":"LACNIC","report_date":"2026-08-20","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"170.83.56.0/23","start":"170.83.56.0","end":"170.83.57.255","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":"2026-10-13T23:46:22+00:00","page":"https://rirtracker.com/ip/170.83.56.0-170.83.57.255/#e-c4712948aca814c8","report_page":"https://rirtracker.com/lacnic/reports/2026-08-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/170.83.56.0-170.83.57.255.json","observed":"170.83.56.0/23 assigned on 2026-08-19, reserved on 2026-08-20","hold":{"hold_rule_source_url":"https://www.lacnic.net/1077/1/lacnic","hold_rule_months":6,"estimated_hold_end":"2027-02-20","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 2017-01-10) on 2026-08-19 and reserved on 2026-08-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 space for 6 calendar months before reissuing it, so the estimated hold end is 2027-02-20. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2026/delegated-lacnic-extended-20260820","retrieved_at":"2026-10-12T16:55:56+00:00","summary":"Found by comparing LACNIC's daily statistics: 170.83.56.0/23 assigned on 2026-08-19, reserved on 2026-08-20"},{"type":"delegated_before","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2026/delegated-lacnic-extended-20260819","retrieved_at":"2026-10-12T16:55:51+00:00","summary":"LACNIC delegated statistics 2026-08-19, before the change: assigned (dated 2017-01-10)"},{"type":"delegated_after","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2026/delegated-lacnic-extended-20260820","retrieved_at":"2026-10-12T16:55:56+00:00","summary":"LACNIC delegated statistics 2026-08-20, after the change: reserved"}]},{"event_id":"d0cfcf44710c469a","registry":"LACNIC","report_date":"2017-01-10","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"170.83.56.0/23","start":"170.83.56.0","end":"170.83.57.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from LACNIC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:50+00:00","page":"https://rirtracker.com/ip/170.83.56.0-170.83.57.255/#e-d0cfcf44710c469a","report_page":"https://rirtracker.com/lacnic/reports/2017-01-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/170.83.56.0-170.83.57.255.json","observed":"170.83.56.0/23 reserved on 2017-01-09, assigned on 2017-01-10","explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2017-01-09 and assigned (dated 2017-01-10) on 2017-01-10. It moved from LACNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by LACNIC.","evidence":[{"type":"statistics_diff","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2017/delegated-lacnic-extended-20170110","retrieved_at":"2026-10-12T21:39:18+00:00","summary":"Found by comparing LACNIC's daily statistics: 170.83.56.0/23 reserved on 2017-01-09, assigned on 2017-01-10"},{"type":"delegated_before","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2017/delegated-lacnic-extended-20170109","retrieved_at":"2026-10-12T21:39:10+00:00","summary":"LACNIC delegated statistics 2017-01-09, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.lacnic.net/pub/stats/lacnic/archive/2017/delegated-lacnic-extended-20170110","retrieved_at":"2026-10-12T21:39:18+00:00","summary":"LACNIC delegated statistics 2017-01-10, after the change: assigned (dated 2017-01-10)"}]}],"classification_history":{"c4712948aca814c8":[{"raw_change_id":28765,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.2.0","classified_at":"2026-10-12T17:43:36+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 2017-01-10) on 2026-08-19 and reserved on 2026-08-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2027-02-20. This does not confirm availability."},{"raw_change_id":28765,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-12T18:23:31+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 2017-01-10) on 2026-08-19 and reserved on 2026-08-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 space for 6 calendar months before reissuing it, so the earliest estimated hold expiration is 2027-02-20. This does not confirm availability."},{"raw_change_id":28765,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:40+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 2017-01-10) on 2026-08-19 and reserved on 2026-08-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 space for 6 calendar months before reissuing it, so the earliest estimated hold expiration is 2027-02-20. This does not confirm availability."},{"raw_change_id":28765,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:49+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 2017-01-10) on 2026-08-19 and reserved on 2026-08-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 space for 6 calendar months before reissuing it, so the earliest estimated hold expiration is 2027-02-20. This does not confirm availability."},{"raw_change_id":28765,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:22+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 2017-01-10) on 2026-08-19 and reserved on 2026-08-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 space for 6 calendar months before reissuing it, so the estimated hold end is 2027-02-20. This does not confirm availability."}],"d0cfcf44710c469a":[{"raw_change_id":346755,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:18:04+00:00","current":0,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2017-01-09 and assigned (dated 2017-01-10) on 2017-01-10. The tracker saw this range released from hold on 2014-04-23 (170.80.0.0/14), so it appears to have been issued again from LACNIC's pool."},{"raw_change_id":346755,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:04+00:00","current":0,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2017-01-09 and assigned (dated 2017-01-10) on 2017-01-10. The tracker saw this range released from hold on 2014-04-23 (170.80.0.0/14), so it appears to have been issued again from LACNIC's pool."},{"raw_change_id":346755,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:38+00:00","current":0,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2017-01-09 and assigned (dated 2017-01-10) on 2017-01-10. The tracker saw this range released from hold on 2014-04-23 (170.80.0.0/14), so it appears to have been issued again from LACNIC's pool."},{"raw_change_id":346755,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:50+00:00","current":1,"public_explanation":"No transfer record matches. LACNIC's statistics show it reserved on 2017-01-09 and assigned (dated 2017-01-10) on 2017-01-10. It moved from LACNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by LACNIC."}]},"arin_statistics_now":{"status":"not listed"}}