{"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":"157.96.0.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/157.96.0.0-157.96.7.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-03-30)"},"current_holder":{"rir":"ARIN","org":"Granite Telecommunications LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":69442,"date":"2020-03-30T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"AstraZaneca AB","recipient_org":null,"range":"157.96.0.0/21","log":"RIPE NCC"},{"id":20327,"date":"2020-03-30T14:19:55Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Astrazeneca AB","recipient_org":"Granite Telecommunications LLC","range":"157.96.0.0/21","log":"ARIN"}],"events":[{"event_id":"8a9eb9e0974d2c21","registry":"ARIN","report_date":"2020-03-30","source":"arin_issued","raw_action":"ADD","raw_line":"Add 157.96.0.0-157.96.7.255","resource_type":"ipv4","resource":"157.96.0.0/21","start":"157.96.0.0","end":"157.96.7.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into ARIN","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"Astrazeneca AB","recipient_organization":"Granite Telecommunications LLC","inventory_effect":"Transferred into ARIN administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:48+00:00","page":"https://rirtracker.com/ip/157.96.0.0-157.96.7.255/#e-8a9eb9e0974d2c21","report_page":"https://rirtracker.com/arin/reports/2020-03-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/157.96.0.0-157.96.7.255.json","same_transfer_as":"f73fb5927667f8ba","explanation":"ARIN's transfer log records a transfer from Astrazeneca AB (RIPE NCC) to Granite Telecommunications LLC (ARIN) on 2020-03-30 14:19 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2020-March/004126.html","retrieved_at":"2026-10-12T18:40:50+00:00","summary":"ARIN-Issued report for 2020-03-30: \"Add 157.96.0.0-157.96.7.255\""},{"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 2020-03-30 14:19 UTC, Astrazeneca AB (RIPE NCC) to Granite Telecommunications LLC (ARIN); resources moved: 157.96.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200329.gz","retrieved_at":"2026-10-12T22:21:36+00:00","summary":"ARIN delegated statistics 2020-03-29 (produced 2020-03-29T14:00:12+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200331.gz","retrieved_at":"2026-10-12T22:21:41+00:00","summary":"ARIN delegated statistics 2020-03-31 (produced 2020-03-31T14:00:13+00:00), after the report: allocated (dated 2020-03-30)"}]},{"event_id":"f73fb5927667f8ba","registry":"RIPE NCC","report_date":"2020-03-30","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"157.96.0.0/21","start":"157.96.0.0","end":"157.96.7.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of the RIPE NCC","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"AstraZaneca AB","recipient_organization":null,"inventory_effect":"Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:09+00:00","page":"https://rirtracker.com/ip/157.96.0.0-157.96.7.255/#e-f73fb5927667f8ba","report_page":"https://rirtracker.com/ripe/reports/2020-03-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/157.96.0.0-157.96.7.255.json","observed":"Transfer: AstraZaneca AB (RIPE NCC) to (no name) (ARIN)","piece_of":{"resource":"157.96.0.0/16","page":"https://rirtracker.com/ip/157.96.0.0-157.96.255.255/"},"same_transfer_as":"8a9eb9e0974d2c21","explanation":"The RIPE NCC's transfer log records a transfer from AstraZaneca AB (RIPE NCC) to an unnamed organization (ARIN) on 2020-03-30 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants.","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 2020-03-30 19:00 UTC, AstraZaneca AB (RIPE NCC) to (no name) (ARIN); resources moved: 157.96.0.0/21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200329.bz2","retrieved_at":"2026-10-12T22:34:41+00:00","summary":"RIPE NCC delegated statistics 2020-03-29 (produced 2020-03-29T21:59:59+00:00), before the change: assigned (dated 2004-04-07)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200330.bz2","retrieved_at":"2026-10-12T22:34:44+00:00","summary":"RIPE NCC delegated statistics 2020-03-30 (produced 2020-03-30T21:59:59+00:00), after the change: not listed"}]}],"classification_history":{"8a9eb9e0974d2c21":[{"raw_change_id":164803,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:47:43+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Astrazeneca AB (RIPE NCC) to Granite Telecommunications LLC (ARIN) on 2020-03-30 14:19 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":164803,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:46+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Astrazeneca AB (RIPE NCC) to Granite Telecommunications LLC (ARIN) on 2020-03-30 14:19 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":164803,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:31+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Astrazeneca AB (RIPE NCC) to Granite Telecommunications LLC (ARIN) on 2020-03-30 14:19 UTC: it came to ARIN from the RIPE NCC. 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It is not a new allocation and is not offered to RIPE NCC applicants."},{"raw_change_id":69178,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:09+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from AstraZaneca AB (RIPE NCC) to an unnamed organization (ARIN) on 2020-03-30 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants."}]},"arin_statistics_now":{"status":"allocated (dated 2020-03-30)"}}