{"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":"AS51633","resource_type":"asn","page":"https://rirtracker.com/asn/51633/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2010-10-12)"},"current_holder":{"rir":"RIPE NCC","org":"Novatek-Chelyabinsk LLC","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":75823,"date":"2021-01-25T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"Chelyabinskregiongaz Ltd","recipient_org":"Novatek-Chelyabinsk LLC","range":"AS51633","log":"RIPE NCC"}],"events":[{"event_id":"b957a11d13ab4686","registry":"RIPE NCC","report_date":"2021-01-25","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS51633","start":51633,"end":51633,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"Chelyabinskregiongaz Ltd","recipient_organization":"Novatek-Chelyabinsk LLC","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:29+00:00","page":"https://rirtracker.com/asn/51633/#e-b957a11d13ab4686","report_page":"https://rirtracker.com/ripe/reports/2021-01-25/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51633.json","observed":"Merger/acquisition: Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC) on 2021-01-25 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 2021-01-25 19:00 UTC, Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC); resources moved: AS51633"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210124.bz2","retrieved_at":"2026-10-12T22:59:41+00:00","summary":"RIPE NCC delegated statistics 2021-01-24 (produced 2021-01-24T22:59:00+00:00), before the change: allocated (dated 2010-10-12)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210125.bz2","retrieved_at":"2026-10-12T22:59:44+00:00","summary":"RIPE NCC delegated statistics 2021-01-25 (produced 2021-01-25T22:59:00+00:00), after the change: allocated (dated 2010-10-12)"}]},{"event_id":"701f27fa6f2f3294","registry":"RIPE NCC","report_date":"2010-10-13","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS51633","start":51633,"end":51633,"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 RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:50+00:00","page":"https://rirtracker.com/asn/51633/#e-701f27fa6f2f3294","report_page":"https://rirtracker.com/ripe/reports/2010-10-13/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51633.json","observed":"AS51633 available on 2010-10-12, allocated on 2010-10-13","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-10-12 and allocated (dated 2010-10-12) on 2010-10-13. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20101013.bz2","retrieved_at":"2026-10-12T18:45:48+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS51633 available on 2010-10-12, allocated on 2010-10-13"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20101012.bz2","retrieved_at":"2026-10-12T18:45:45+00:00","summary":"RIPE NCC delegated statistics 2010-10-12, before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20101013.bz2","retrieved_at":"2026-10-12T18:45:48+00:00","summary":"RIPE NCC delegated statistics 2010-10-13, after the change: allocated (dated 2010-10-12)"}]}],"classification_history":{"b957a11d13ab4686":[{"raw_change_id":75732,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:52:43+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC) on 2021-01-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":75732,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:26+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC) on 2021-01-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":75732,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:47+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC) on 2021-01-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":75732,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:29+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Chelyabinskregiongaz Ltd (RIPE NCC) to Novatek-Chelyabinsk LLC (RIPE NCC) on 2021-01-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"701f27fa6f2f3294":[{"raw_change_id":200539,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:09:45+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-10-12 and allocated (dated 2010-10-12) on 2010-10-13. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":200539,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:18+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-10-12 and allocated (dated 2010-10-12) on 2010-10-13. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":200539,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:14+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-10-12 and allocated (dated 2010-10-12) on 2010-10-13. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":200539,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:50+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-10-12 and allocated (dated 2010-10-12) on 2010-10-13. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."}]},"arin_statistics_now":{"status":"not listed"}}