{"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":"192.58.29.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/192.58.29.0-192.58.29.255/","statistics_now":{"registry":"RIPE NCC","status":"assigned (dated 2012-01-04)"},"current_holder":{"rir":"RIPE NCC","org":"Khalifa University for Science Technology and Research","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":71771,"date":"2020-08-25T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"Masdar Institute of Science and Technology - MIST","recipient_org":"Khalifa University for Science Technology and Research","range":"192.58.29.0/24","log":"RIPE NCC"}],"events":[{"event_id":"fbdcd9aa2389fa78","registry":"RIPE NCC","report_date":"2020-08-25","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"192.58.29.0/24","start":"192.58.29.0","end":"192.58.29.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"Masdar Institute of Science and Technology - MIST","recipient_organization":"Khalifa University for Science Technology and Research","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:17+00:00","page":"https://rirtracker.com/ip/192.58.29.0-192.58.29.255/#e-fbdcd9aa2389fa78","report_page":"https://rirtracker.com/ripe/reports/2020-08-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/192.58.29.0-192.58.29.255.json","observed":"Merger/acquisition: Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC) on 2020-08-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: MERGER_ACQUISITION on 2020-08-25 19:00 UTC, Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC); resources moved: 192.58.29.0/24"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200824.bz2","retrieved_at":"2026-10-12T22:46:21+00:00","summary":"RIPE NCC delegated statistics 2020-08-24 (produced 2020-08-24T21:59:59+00:00), before the change: assigned (dated 2012-01-04)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200825.bz2","retrieved_at":"2026-10-12T22:46:24+00:00","summary":"RIPE NCC delegated statistics 2020-08-25 (produced 2020-08-25T21:59:59+00:00), after the change: assigned (dated 2012-01-04)"}]},{"event_id":"6b93a8612ec9a950","registry":"RIPE NCC","report_date":"2012-01-04","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"192.58.29.0/24","start":"192.58.29.0","end":"192.58.29.255","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":"2026-10-13T23:55:57+00:00","page":"https://rirtracker.com/ip/192.58.29.0-192.58.29.255/#e-6b93a8612ec9a950","report_page":"https://rirtracker.com/ripe/reports/2012-01-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/192.58.29.0-192.58.29.255.json","observed":"192.58.29.0/24 available on 2012-01-03, assigned on 2012-01-04","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2012-01-03 and assigned (dated 2012-01-04) on 2012-01-04. The tracker saw this range released from hold on 2011-09-20 (192.58.29.0 - 192.58.35.255), 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/2012/delegated-ripencc-extended-20120104.bz2","retrieved_at":"2026-10-12T19:09:19+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 192.58.29.0/24 available on 2012-01-03, assigned on 2012-01-04"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2012/delegated-ripencc-extended-20120103.bz2","retrieved_at":"2026-10-12T19:09:16+00:00","summary":"RIPE NCC delegated statistics 2012-01-03 (produced 2012-01-03T22:59:59+00:00), before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2012/delegated-ripencc-extended-20120104.bz2","retrieved_at":"2026-10-12T19:09:19+00:00","summary":"RIPE NCC delegated statistics 2012-01-04 (produced 2012-01-04T22:59:59+00:00), after the change: assigned (dated 2012-01-04)"}]},{"event_id":"ff42c68bb5d6e97f","registry":"RIPE NCC","report_date":"2011-06-22","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"192.58.29.0/24","start":"192.58.29.0","end":"192.58.29.255","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":"2026-10-13T23:55:30+00:00","page":"https://rirtracker.com/ip/192.58.29.0-192.58.29.255/#e-ff42c68bb5d6e97f","report_page":"https://rirtracker.com/ripe/reports/2011-06-22/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/192.58.29.0-192.58.29.255.json","observed":"192.58.29.0/24 assigned on 2011-06-21, reserved on 2011-06-22","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 1989-09-05) on 2011-06-21 and reserved on 2011-06-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv4 space applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110622.bz2","retrieved_at":"2026-10-12T18:58:56+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 192.58.29.0/24 assigned on 2011-06-21, reserved on 2011-06-22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110621.bz2","retrieved_at":"2026-10-12T18:58:53+00:00","summary":"RIPE NCC delegated statistics 2011-06-21 (produced 2011-06-21T21:59:59+00:00), before the change: assigned (dated 1989-09-05)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110622.bz2","retrieved_at":"2026-10-12T18:58:56+00:00","summary":"RIPE NCC delegated statistics 2011-06-22 (produced 2011-06-22T21:59:59+00:00), after the change: reserved"}]}],"classification_history":{"fbdcd9aa2389fa78":[{"raw_change_id":71589,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:50:55+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC) on 2020-08-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":71589,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:16+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC) on 2020-08-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":71589,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:35+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC) on 2020-08-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":71589,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:17+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Masdar Institute of Science and Technology - MIST (RIPE NCC) to Khalifa University for Science Technology and Research (RIPE NCC) on 2020-08-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"6b93a8612ec9a950":[{"raw_change_id":220506,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:16:49+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2012-01-03 and assigned (dated 2012-01-04) on 2012-01-04. The tracker saw this range released from hold on 2011-09-20 (192.58.29.0 - 192.58.35.255), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":220506,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:09:17+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2012-01-03 and assigned (dated 2012-01-04) on 2012-01-04. The tracker saw this range released from hold on 2011-09-20 (192.58.29.0 - 192.58.35.255), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":220506,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:52:18+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2012-01-03 and assigned (dated 2012-01-04) on 2012-01-04. The tracker saw this range released from hold on 2011-09-20 (192.58.29.0 - 192.58.35.255), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":220506,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:57+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2012-01-03 and assigned (dated 2012-01-04) on 2012-01-04. The tracker saw this range released from hold on 2011-09-20 (192.58.29.0 - 192.58.35.255), so it appears to have been issued again from the RIPE NCC's pool."}],"ff42c68bb5d6e97f":[{"raw_change_id":212889,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:13:33+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 1989-09-05) on 2011-06-21 and reserved on 2011-06-22. 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 2011-12-19. This does not confirm availability."},{"raw_change_id":212889,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:54+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 1989-09-05) on 2011-06-21 and reserved on 2011-06-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv4 space applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":212889,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:53+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 1989-09-05) on 2011-06-21 and reserved on 2011-06-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv4 space applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":212889,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:30+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 1989-09-05) on 2011-06-21 and reserved on 2011-06-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv4 space applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."}]},"arin_statistics_now":{"status":"not listed"}}