{"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":"131.150.144.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/131.150.144.0-131.150.159.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2012-05-15)"},"current_holder":{"rir":"RIPE NCC","org":"Vodafone Libertel B.V","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":116000,"date":"2025-10-30T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Vodafone Libertel B.V.","range":"131.150.144.0/20","log":"RIPE NCC"},{"id":41886,"date":"2025-10-30T13:34:33Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Vodafone US Inc.","recipient_org":"Vodafone Libertel B.V","range":"131.150.144.0/20","log":"ARIN"},{"id":5387,"date":"2012-05-15T15:29:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Northern Telecom Canada Ltd.","recipient_org":"VODAFONE AMERICAS INC.","range":"131.150.144.0/20","log":"ARIN"}],"events":[{"event_id":"e6b1e46f14c623b8","registry":"ARIN","report_date":"2025-10-30","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"131.150.144.0/20","start":"131.150.144.0","end":"131.150.159.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Vodafone US Inc.","recipient_organization":"Vodafone Libertel B.V","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:49+00:00","page":"https://rirtracker.com/ip/131.150.144.0-131.150.159.255/#e-e6b1e46f14c623b8","report_page":"https://rirtracker.com/arin/reports/2025-10-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.150.144.0-131.150.159.255.json","observed":"131.150.144.0/20 allocated on 2025-10-30, not listed on 2025-10-31","same_transfer_as":"782d198b4b5076a2","explanation":"ARIN's transfer log records a transfer from Vodafone US Inc. (ARIN) to Vodafone Libertel B.V (RIPE NCC) on 2025-10-30 13:34 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251031.gz","retrieved_at":"2026-10-13T00:09:35+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 131.150.144.0/20 allocated on 2025-10-30, not listed on 2025-10-31"},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2025-10-30 13:34 UTC, Vodafone US Inc. (ARIN) to Vodafone Libertel B.V (RIPE NCC); resources moved: 131.150.144.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251029.gz","retrieved_at":"2026-10-13T00:09:16+00:00","summary":"ARIN delegated statistics 2025-10-29 (produced 2025-10-29T13:00:48+00:00), before the report: allocated (dated 2012-05-15)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251031.gz","retrieved_at":"2026-10-13T00:09:35+00:00","summary":"ARIN delegated statistics 2025-10-31 (produced 2025-10-31T13:00:48+00:00), after the report: not listed"}]},{"event_id":"782d198b4b5076a2","registry":"RIPE NCC","report_date":"2025-10-30","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"131.150.144.0/20","start":"131.150.144.0","end":"131.150.159.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into the RIPE NCC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":null,"recipient_organization":"Vodafone Libertel B.V.","inventory_effect":"Transferred into RIPE NCC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:37+00:00","page":"https://rirtracker.com/ip/131.150.144.0-131.150.159.255/#e-782d198b4b5076a2","report_page":"https://rirtracker.com/ripe/reports/2025-10-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.150.144.0-131.150.159.255.json","observed":"Transfer: (no name) (ARIN) to Vodafone Libertel B.V. (RIPE NCC)","same_transfer_as":"e6b1e46f14c623b8","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Vodafone Libertel B.V. (RIPE NCC) on 2025-10-30 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.","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: RESOURCE_TRANSFER on 2025-10-30 19:00 UTC, (no name) (ARIN) to Vodafone Libertel B.V. (RIPE NCC); resources moved: 131.150.144.0/20"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20251029.bz2","retrieved_at":"2026-10-13T01:12:26+00:00","summary":"RIPE NCC delegated statistics 2025-10-29 (produced 2025-10-29T22:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20251030.bz2","retrieved_at":"2026-10-13T01:12:29+00:00","summary":"RIPE NCC delegated statistics 2025-10-30 (produced 2025-10-30T22:59:59+00:00), after the change: allocated (dated 2012-05-15)"}]},{"event_id":"4a55a7261408be43","registry":"ARIN","report_date":"2012-05-15","source":"arin_issued","raw_action":"ADD","raw_line":"Add 131.150.144.0-131.150.159.255","resource_type":"ipv4","resource":"131.150.144.0/20","start":"131.150.144.0","end":"131.150.159.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Northern Telecom Canada Ltd.","recipient_organization":"VODAFONE AMERICAS INC.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:59+00:00","page":"https://rirtracker.com/ip/131.150.144.0-131.150.159.255/#e-4a55a7261408be43","report_page":"https://rirtracker.com/arin/reports/2012-05-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/131.150.144.0-131.150.159.255.json","piece_of":{"resource":"131.150.132.0 - 131.150.189.255","page":"https://rirtracker.com/ip/131.150.132.0-131.150.189.255/"},"explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to VODAFONE AMERICAS INC. (ARIN) on 2012-05-15 15:29 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-May/001251.html","retrieved_at":"2026-10-12T18:37:31+00:00","summary":"ARIN-Issued report for 2012-05-15: \"Add 131.150.144.0-131.150.159.255\""},{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2012-05-15 15:29 UTC, Northern Telecom Canada Ltd. (ARIN) to VODAFONE AMERICAS INC. (ARIN); resources moved: 131.150.144.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120514.gz","retrieved_at":"2026-10-12T19:35:33+00:00","summary":"ARIN delegated statistics 2012-05-14, before the report: assigned (dated 1988-11-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120516.gz","retrieved_at":"2026-10-12T19:35:38+00:00","summary":"ARIN delegated statistics 2012-05-16, after the report: assigned (dated 2012-05-15)"}]}],"classification_history":{"e6b1e46f14c623b8":[{"raw_change_id":488212,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T06:19:27+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Vodafone US Inc. (ARIN) to Vodafone Libertel B.V (RIPE NCC) on 2025-10-30 13:34 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":488212,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:24:10+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Vodafone US Inc. (ARIN) to Vodafone Libertel B.V (RIPE NCC) on 2025-10-30 13:34 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":488212,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:20+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Vodafone US Inc. (ARIN) to Vodafone Libertel B.V (RIPE NCC) on 2025-10-30 13:34 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":488212,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:49+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Vodafone US Inc. (ARIN) to Vodafone Libertel B.V (RIPE NCC) on 2025-10-30 13:34 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}],"782d198b4b5076a2":[{"raw_change_id":116824,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:10:06+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Vodafone Libertel B.V. (RIPE NCC) on 2025-10-30 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":116824,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:08+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Vodafone Libertel B.V. (RIPE NCC) on 2025-10-30 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":116824,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:40+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Vodafone Libertel B.V. (RIPE NCC) on 2025-10-30 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":116824,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:37+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Vodafone Libertel B.V. (RIPE NCC) on 2025-10-30 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"4a55a7261408be43":[{"raw_change_id":126212,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:17:14+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to VODAFONE AMERICAS INC. (ARIN) on 2012-05-15 15:29 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":126212,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:24+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to VODAFONE AMERICAS INC. (ARIN) on 2012-05-15 15:29 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":126212,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:59+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to VODAFONE AMERICAS INC. (ARIN) on 2012-05-15 15:29 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":126212,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:59+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Northern Telecom Canada Ltd. (ARIN) to VODAFONE AMERICAS INC. (ARIN) on 2012-05-15 15:29 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"not listed"}}