{"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":"72.251.252.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/72.251.252.0-72.251.255.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2009-03-29)"},"current_holder":{"rir":"RIPE NCC","org":"Stadtwerke Barmstedt Xtra GmbH","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":115537,"date":"2025-10-07T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Stadtwerke Barmstedt Xtra GmbH","range":"72.251.252.0/22","log":"RIPE NCC"},{"id":41629,"date":"2025-10-07T13:40:27Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Internap Holding LLC","recipient_org":"Stadtwerke Barmstedt Xtra GmbH","range":"72.251.252.0/22","log":"ARIN"},{"id":16454,"date":"2018-11-29T13:45:51Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Voxel Dot Net, Inc.","recipient_org":"Internap Corporation","range":"72.251.192.0/18","log":"ARIN"}],"events":[{"event_id":"a58a9e23fbc1e92d","registry":"ARIN","report_date":"2025-10-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"72.251.252.0/22","start":"72.251.252.0","end":"72.251.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Internap Holding LLC","recipient_organization":"Stadtwerke Barmstedt Xtra GmbH","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":"2026-10-14T00:19:24+00:00","page":"https://rirtracker.com/ip/72.251.252.0-72.251.255.255/#e-a58a9e23fbc1e92d","report_page":"https://rirtracker.com/arin/reports/2025-10-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/72.251.252.0-72.251.255.255.json","observed":"Transfer: Internap Holding LLC (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC)","piece_of":{"resource":"72.251.192.0/18","page":"https://rirtracker.com/ip/72.251.192.0-72.251.255.255/"},"same_transfer_as":"9945f485ac3c99e9","explanation":"ARIN's transfer log records a transfer from Internap Holding LLC (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC) on 2025-10-07 13:40 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 2025-10-07 13:40 UTC, Internap Holding LLC (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC); resources moved: 72.251.252.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251006.gz","retrieved_at":"2026-10-13T00:08:07+00:00","summary":"ARIN delegated statistics 2025-10-06 (produced 2025-10-06T13:00:50+00:00), before the report: allocated (dated 2009-05-29)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20251008.gz","retrieved_at":"2026-10-13T00:08:11+00:00","summary":"ARIN delegated statistics 2025-10-08 (produced 2025-10-08T13:00:46+00:00), after the report: not listed"}]},{"event_id":"9945f485ac3c99e9","registry":"RIPE NCC","report_date":"2025-10-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"72.251.252.0/22","start":"72.251.252.0","end":"72.251.255.255","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":"Stadtwerke Barmstedt Xtra GmbH","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":"2026-10-13T23:50:35+00:00","page":"https://rirtracker.com/ip/72.251.252.0-72.251.255.255/#e-9945f485ac3c99e9","report_page":"https://rirtracker.com/ripe/reports/2025-10-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/72.251.252.0-72.251.255.255.json","observed":"Transfer: (no name) (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC)","same_transfer_as":"a58a9e23fbc1e92d","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC) on 2025-10-07 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 2025-10-07 19:00 UTC, (no name) (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC); resources moved: 72.251.252.0/22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20251006.bz2","retrieved_at":"2026-10-13T01:10:31+00:00","summary":"RIPE NCC delegated statistics 2025-10-06 (produced 2025-10-06T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20251007.bz2","retrieved_at":"2026-10-13T01:10:56+00:00","summary":"RIPE NCC delegated statistics 2025-10-07 (produced 2025-10-07T21:59:59+00:00), after the change: allocated (dated 2009-03-29)"}]}],"classification_history":{"a58a9e23fbc1e92d":[{"raw_change_id":574535,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Internap Holding LLC (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC) on 2025-10-07 13:40 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants."}],"9945f485ac3c99e9":[{"raw_change_id":116351,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:09:53+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC) on 2025-10-07 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":116351,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:06+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Stadtwerke Barmstedt Xtra GmbH (RIPE NCC) on 2025-10-07 19:00 UTC: it came to the RIPE NCC from ARIN. 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It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}