{"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":"AS51119","resource_type":"asn","page":"https://rirtracker.com/asn/51119/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2016-01-06)"},"current_holder":{"rir":"RIPE NCC","org":"Iran Telecommunication Company PJS","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":60492,"date":"2018-11-15T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"Telecommunication company of semnan province PJSC","recipient_org":"Iran Telecommunication Company PJS","range":"AS51119","log":"RIPE NCC"}],"events":[{"event_id":"11d41f7434a5e29e","registry":"RIPE NCC","report_date":"2018-11-15","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS51119","start":51119,"end":51119,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"Telecommunication company of semnan province PJSC","recipient_organization":"Iran Telecommunication Company PJS","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:41+00:00","page":"https://rirtracker.com/asn/51119/#e-11d41f7434a5e29e","report_page":"https://rirtracker.com/ripe/reports/2018-11-15/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51119.json","observed":"Merger/acquisition: Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC) on 2018-11-15 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 2018-11-15 19:00 UTC, Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC); resources moved: AS51119"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20181114.bz2","retrieved_at":"2026-10-12T21:57:46+00:00","summary":"RIPE NCC delegated statistics 2018-11-14 (produced 2018-11-14T22:59:59+00:00), before the change: allocated (dated 2016-01-06)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2018/delegated-ripencc-extended-20181115.bz2","retrieved_at":"2026-10-12T21:57:49+00:00","summary":"RIPE NCC delegated statistics 2018-11-15 (produced 2018-11-15T22:59:59+00:00), after the change: allocated (dated 2016-01-06)"}]},{"event_id":"0e9da72702cebbcf","registry":"RIPE NCC","report_date":"2016-01-06","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS51119","start":51119,"end":51119,"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":"2026-10-14T00:00:35+00:00","page":"https://rirtracker.com/asn/51119/#e-0e9da72702cebbcf","report_page":"https://rirtracker.com/ripe/reports/2016-01-06/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51119.json","observed":"AS51119 available on 2016-01-05, allocated on 2016-01-06","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2016-01-05 and allocated (dated 2016-01-06) on 2016-01-06. The tracker saw this range released from hold on 2015-11-25 (AS51119), 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-20160106.bz2","retrieved_at":"2026-10-12T20:47:21+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS51119 available on 2016-01-05, allocated on 2016-01-06"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160105.bz2","retrieved_at":"2026-10-12T20:47:19+00:00","summary":"RIPE NCC delegated statistics 2016-01-05 (produced 2016-01-05T22:59:59+00:00), before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160106.bz2","retrieved_at":"2026-10-12T20:47:21+00:00","summary":"RIPE NCC delegated statistics 2016-01-06 (produced 2016-01-06T22:59:59+00:00), after the change: allocated (dated 2016-01-06)"}]},{"event_id":"bade769ff3b4bd99","registry":"RIPE NCC","report_date":"2015-11-25","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"asn","resource":"AS51119","start":51119,"end":51119,"classification":"HOLD_RELEASED","classification_label":"Released from hold (the RIPE NCC lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"The RIPE NCC's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:00:26+00:00","page":"https://rirtracker.com/asn/51119/#e-bade769ff3b4bd99","report_page":"https://rirtracker.com/ripe/reports/2015-11-25/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51119.json","observed":"AS51119 reserved on 2015-11-24, available on 2015-11-25","explanation":"The RIPE NCC's statistics show it reserved on 2015-11-24 and available on 2015-11-25. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2010-10-15, 1867 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20151125.bz2","retrieved_at":"2026-10-12T20:44:48+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS51119 reserved on 2015-11-24, available on 2015-11-25"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20151124.bz2","retrieved_at":"2026-10-12T20:44:45+00:00","summary":"RIPE NCC delegated statistics 2015-11-24 (produced 2015-11-24T22:59:59+00:00), before the change: reserved"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2015/delegated-ripencc-extended-20151125.bz2","retrieved_at":"2026-10-12T20:44:48+00:00","summary":"RIPE NCC delegated statistics 2015-11-25 (produced 2015-11-25T22:59:59+00:00), after the change: available"}]},{"event_id":"7800b201787b4e5a","registry":"RIPE NCC","report_date":"2010-10-15","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"asn","resource":"AS51119","start":51119,"end":51119,"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":"2026-10-13T23:54:50+00:00","page":"https://rirtracker.com/asn/51119/#e-7800b201787b4e5a","report_page":"https://rirtracker.com/ripe/reports/2010-10-15/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51119.json","observed":"AS51119 allocated on 2010-10-14, available on 2010-10-15","explanation":"Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2010-06-03) on 2010-10-14 and available on 2010-10-16. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs 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/2010/delegated-ripencc-extended-20101015.bz2","retrieved_at":"2026-10-12T18:45:53+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS51119 allocated on 2010-10-14, available on 2010-10-15"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20101014.bz2","retrieved_at":"2026-10-12T18:45:51+00:00","summary":"RIPE NCC delegated statistics 2010-10-14, before the change: allocated (dated 2010-06-03)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20101016.bz2","retrieved_at":"2026-10-12T18:45:56+00:00","summary":"RIPE NCC delegated statistics 2010-10-16, after the change: available"}]},{"event_id":"6a0266e989d96fd9","registry":"RIPE NCC","report_date":"2010-06-04","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS51119","start":51119,"end":51119,"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":"2026-10-13T23:51:22+00:00","page":"https://rirtracker.com/asn/51119/#e-6a0266e989d96fd9","report_page":"https://rirtracker.com/ripe/reports/2010-06-04/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/51119.json","observed":"AS51119 available on 2010-06-03, allocated on 2010-06-04","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-06-03 and allocated (dated 2010-06-03) on 2010-06-04. 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-20100604.bz2","retrieved_at":"2026-10-12T18:38:29+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS51119 available on 2010-06-03, allocated on 2010-06-04"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20100603.bz2","retrieved_at":"2026-10-12T18:38:27+00:00","summary":"RIPE NCC delegated statistics 2010-06-03, before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2010/delegated-ripencc-extended-20100604.bz2","retrieved_at":"2026-10-12T18:38:29+00:00","summary":"RIPE NCC delegated statistics 2010-06-04, after the change: allocated (dated 2010-06-03)"}]}],"classification_history":{"11d41f7434a5e29e":[{"raw_change_id":59892,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:45:47+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC) on 2018-11-15 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":59892,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:46+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC) on 2018-11-15 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":59892,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:02+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC) on 2018-11-15 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":59892,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:41+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from Telecommunication company of semnan province PJSC (RIPE NCC) to Iran Telecommunication Company PJS (RIPE NCC) on 2018-11-15 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"0e9da72702cebbcf":[{"raw_change_id":296368,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:54:17+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2016-01-05 and allocated (dated 2016-01-06) on 2016-01-06. The tracker saw this range released from hold on 2015-11-25 (AS51119), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":296368,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:13:18+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2016-01-05 and allocated (dated 2016-01-06) on 2016-01-06. The tracker saw this range released from hold on 2015-11-25 (AS51119), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":296368,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:56:40+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2016-01-05 and allocated (dated 2016-01-06) on 2016-01-06. The tracker saw this range released from hold on 2015-11-25 (AS51119), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":296368,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:00:35+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2016-01-05 and allocated (dated 2016-01-06) on 2016-01-06. The tracker saw this range released from hold on 2015-11-25 (AS51119), so it appears to have been issued again from the RIPE NCC's pool."}],"bade769ff3b4bd99":[{"raw_change_id":294275,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:53:13+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2015-11-24 and available on 2015-11-25. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2010-10-15, 1867 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":294275,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:13:10+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2015-11-24 and available on 2015-11-25. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2010-10-15, 1867 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":294275,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:56:32+00:00","current":0,"public_explanation":"The RIPE NCC's statistics show it reserved on 2015-11-24 and available on 2015-11-25. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2010-10-15, 1867 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":294275,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:00:26+00:00","current":1,"public_explanation":"The RIPE NCC's statistics show it reserved on 2015-11-24 and available on 2015-11-25. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2010-10-15, 1867 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed."}],"7800b201787b4e5a":[{"raw_change_id":200611,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:09:46+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 allocated (dated 2010-06-03) on 2010-10-14 and available on 2010-10-16. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed ASNs for 180 days (six months), or longer while still routed, before reissuing them, so the earliest estimated hold expiration is 2011-04-13. This does not confirm availability."},{"raw_change_id":200611,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:18+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 allocated (dated 2010-06-03) on 2010-10-14 and available on 2010-10-16. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs 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":200611,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:14+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 allocated (dated 2010-06-03) on 2010-10-14 and available on 2010-10-16. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs 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":200611,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:50+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 allocated (dated 2010-06-03) on 2010-10-14 and available on 2010-10-16. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability."}],"6a0266e989d96fd9":[{"raw_change_id":136766,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:30:13+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-06-03 and allocated (dated 2010-06-03) on 2010-06-04. 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":136766,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:41+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-06-03 and allocated (dated 2010-06-03) on 2010-06-04. 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":136766,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:18+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-06-03 and allocated (dated 2010-06-03) on 2010-06-04. 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":136766,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:22+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2010-06-03 and allocated (dated 2010-06-03) on 2010-06-04. 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"}}