{"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":"194.1.252.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/194.1.252.0-194.1.252.255/","statistics_now":{"registry":"RIPE NCC","status":"assigned (dated 2012-03-06)"},"current_holder":{"rir":"RIPE NCC","org":null,"how":"The RIPE NCC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"48cf094f2ff5c700","registry":"RIPE NCC","report_date":"2012-02-27","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"194.1.252.0/24","start":"194.1.252.0","end":"194.1.252.255","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":"2026-10-13T23:56:05+00:00","page":"https://rirtracker.com/ip/194.1.252.0-194.1.252.255/#e-48cf094f2ff5c700","report_page":"https://rirtracker.com/ripe/reports/2012-02-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/194.1.252.0-194.1.252.255.json","observed":"194.1.252.0/24 assigned on 2012-02-26, reserved on 2012-02-27","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 1996-06-11) on 2012-02-26 and reserved on 2012-02-27. 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/2012/delegated-ripencc-extended-20120227.bz2","retrieved_at":"2026-10-12T19:12:06+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 194.1.252.0/24 assigned on 2012-02-26, reserved on 2012-02-27"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2012/delegated-ripencc-extended-20120226.bz2","retrieved_at":"2026-10-12T19:12:03+00:00","summary":"RIPE NCC delegated statistics 2012-02-26 (produced 2012-02-26T22:59:59+00:00), before the change: assigned (dated 1996-06-11)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2012/delegated-ripencc-extended-20120227.bz2","retrieved_at":"2026-10-12T19:12:06+00:00","summary":"RIPE NCC delegated statistics 2012-02-27 (produced 2012-02-27T22:59:59+00:00), after the change: reserved"}]}],"classification_history":{"48cf094f2ff5c700":[{"raw_change_id":222615,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:17:37+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 1996-06-11) on 2012-02-26 and reserved on 2012-02-27. 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 2012-08-25. This does not confirm availability."},{"raw_change_id":222615,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:09:23+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 1996-06-11) on 2012-02-26 and reserved on 2012-02-27. 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":222615,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:52:25+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 1996-06-11) on 2012-02-26 and reserved on 2012-02-27. 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":222615,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:56:05+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 1996-06-11) on 2012-02-26 and reserved on 2012-02-27. 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"}}