{"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":"72.63.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/72.63.0.0-72.63.255.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2010-11-10)"},"current_holder":{"rir":"RIPE NCC","org":"code200, UAB","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":113318,"date":"2025-06-03T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"UAB code200","range":"72.63.0.0/16","log":"RIPE NCC"},{"id":40543,"date":"2025-06-03T14:28:23Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"T-Mobile USA, Inc.","recipient_org":"code200, UAB","range":"72.63.0.0/16","log":"ARIN"},{"id":22422,"date":"2020-12-31T20:17:58Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Sprint Communications, Inc.","recipient_org":"T-Mobile USA, Inc.","range":"72.56.0.0/13","log":"ARIN"}],"events":[{"event_id":"6be8b8176ae7d6a5","registry":"ARIN","report_date":"2025-06-03","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"72.63.0.0/16","start":"72.63.0.0","end":"72.63.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"T-Mobile USA, Inc.","recipient_organization":"code200, UAB","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":"2026-10-14T00:19:22+00:00","page":"https://rirtracker.com/ip/72.63.0.0-72.63.255.255/#e-6be8b8176ae7d6a5","report_page":"https://rirtracker.com/arin/reports/2025-06-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/72.63.0.0-72.63.255.255.json","observed":"Transfer: T-Mobile USA, Inc. (ARIN) to code200, UAB (RIPE NCC)","piece_of":{"resource":"72.56.0.0/13","page":"https://rirtracker.com/ip/72.56.0.0-72.63.255.255/"},"same_transfer_as":"da00659abb17d528","explanation":"ARIN's transfer log records a transfer from T-Mobile USA, Inc. (ARIN) to code200, UAB (RIPE NCC) on 2025-06-03 14:28 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants.","evidence":[{"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 2025-06-03 14:28 UTC, T-Mobile USA, Inc. (ARIN) to code200, UAB (RIPE NCC); resources moved: 72.63.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250602.gz","retrieved_at":"2026-10-13T00:01:01+00:00","summary":"ARIN delegated statistics 2025-06-02 (produced 2025-06-02T13:01:13+00:00), before the report: allocated (dated 2008-02-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250604.gz","retrieved_at":"2026-10-13T00:01:06+00:00","summary":"ARIN delegated statistics 2025-06-04 (produced 2025-06-04T13:01:11+00:00), after the report: not listed"}]},{"event_id":"da00659abb17d528","registry":"RIPE NCC","report_date":"2025-06-03","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"72.63.0.0/16","start":"72.63.0.0","end":"72.63.255.255","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":"UAB code200","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":"2026-10-13T23:50:28+00:00","page":"https://rirtracker.com/ip/72.63.0.0-72.63.255.255/#e-da00659abb17d528","report_page":"https://rirtracker.com/ripe/reports/2025-06-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/72.63.0.0-72.63.255.255.json","observed":"Transfer: (no name) (ARIN) to UAB code200 (RIPE NCC)","same_transfer_as":"6be8b8176ae7d6a5","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to UAB code200 (RIPE NCC) on 2025-06-03 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 2025-06-03 19:00 UTC, (no name) (ARIN) to UAB code200 (RIPE NCC); resources moved: 72.63.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250602.bz2","retrieved_at":"2026-10-13T01:00:42+00:00","summary":"RIPE NCC delegated statistics 2025-06-02 (produced 2025-06-02T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250603.bz2","retrieved_at":"2026-10-13T01:01:06+00:00","summary":"RIPE NCC delegated statistics 2025-06-03 (produced 2025-06-03T21:59:59+00:00), after the change: allocated (dated 2010-11-10)"}]}],"classification_history":{"6be8b8176ae7d6a5":[{"raw_change_id":573749,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:22+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from T-Mobile USA, Inc. (ARIN) to code200, UAB (RIPE NCC) on 2025-06-03 14:28 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants."}],"da00659abb17d528":[{"raw_change_id":114087,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:08:51+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to UAB code200 (RIPE NCC) on 2025-06-03 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":114087,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:01+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to UAB code200 (RIPE NCC) on 2025-06-03 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":114087,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:32+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to UAB code200 (RIPE NCC) on 2025-06-03 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":114087,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:28+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to UAB code200 (RIPE NCC) on 2025-06-03 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."}]},"arin_statistics_now":{"status":"not listed"}}