{"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":"173.245.160.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/173.245.160.0-173.245.167.255/","statistics_now":{"registry":"RIPE NCC","status":"assigned (dated 2010-05-20)"},"current_holder":{"rir":"RIPE NCC","org":"NorthgateArinso Belgium NV","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":67040,"date":"2019-11-21T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"NorthgateArinso Belgium NV","range":"173.245.160.0/21","log":"RIPE NCC"},{"id":19364,"date":"2019-11-21T13:29:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"NORTHGATEARINSO, INC.","recipient_org":"NorthgateArinso Belgium NV","range":"173.245.160.0/21","log":"ARIN"}],"events":[{"event_id":"5973f9cc55bdecc4","registry":"ARIN","report_date":"2019-11-21","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"173.245.160.0/21","start":"173.245.160.0","end":"173.245.167.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"NORTHGATEARINSO, INC.","recipient_organization":"NorthgateArinso Belgium NV","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":"2026-10-14T00:18:47+00:00","page":"https://rirtracker.com/ip/173.245.160.0-173.245.167.255/#e-5973f9cc55bdecc4","report_page":"https://rirtracker.com/arin/reports/2019-11-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.245.160.0-173.245.167.255.json","observed":"Transfer: NORTHGATEARINSO, INC. (ARIN) to NorthgateArinso Belgium NV (RIPE NCC)","piece_of":{"resource":"173.245.160.0/19","page":"https://rirtracker.com/ip/173.245.160.0-173.245.191.255/"},"same_transfer_as":"f7eeeb1d2d751f0c","explanation":"ARIN's transfer log records a transfer from NORTHGATEARINSO, INC. (ARIN) to NorthgateArinso Belgium NV (RIPE NCC) on 2019-11-21 13:29 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 2019-11-21 13:29 UTC, NORTHGATEARINSO, INC. (ARIN) to NorthgateArinso Belgium NV (RIPE NCC); resources moved: 173.245.160.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20191120.gz","retrieved_at":"2026-10-12T22:14:39+00:00","summary":"ARIN delegated statistics 2019-11-20 (produced 2019-11-20T15:00:13+00:00), before the report: assigned (dated 2010-05-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20191122.gz","retrieved_at":"2026-10-12T22:14:52+00:00","summary":"ARIN delegated statistics 2019-11-22 (produced 2019-11-22T15:00:13+00:00), after the report: not listed"}]},{"event_id":"f7eeeb1d2d751f0c","registry":"RIPE NCC","report_date":"2019-11-21","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"173.245.160.0/21","start":"173.245.160.0","end":"173.245.167.255","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":"NorthgateArinso Belgium NV","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":"2026-10-13T23:48:02+00:00","page":"https://rirtracker.com/ip/173.245.160.0-173.245.167.255/#e-f7eeeb1d2d751f0c","report_page":"https://rirtracker.com/ripe/reports/2019-11-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.245.160.0-173.245.167.255.json","observed":"Transfer: (no name) (ARIN) to NorthgateArinso Belgium NV (RIPE NCC)","same_transfer_as":"5973f9cc55bdecc4","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to NorthgateArinso Belgium NV (RIPE NCC) on 2019-11-21 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 2019-11-21 19:00 UTC, (no name) (ARIN) to NorthgateArinso Belgium NV (RIPE NCC); resources moved: 173.245.160.0/21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20191120.bz2","retrieved_at":"2026-10-12T22:24:16+00:00","summary":"RIPE NCC delegated statistics 2019-11-20 (produced 2019-11-20T22:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20191121.bz2","retrieved_at":"2026-10-12T22:24:19+00:00","summary":"RIPE NCC delegated statistics 2019-11-21 (produced 2019-11-21T22:59:59+00:00), after the change: assigned (dated 2010-05-20)"}]}],"classification_history":{"5973f9cc55bdecc4":[{"raw_change_id":559663,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:47+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from NORTHGATEARINSO, INC. (ARIN) to NorthgateArinso Belgium NV (RIPE NCC) on 2019-11-21 13:29 UTC: it left ARIN for the RIPE NCC. It is not a new allocation and is not offered to ARIN applicants."}],"f7eeeb1d2d751f0c":[{"raw_change_id":66745,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:48:49+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to NorthgateArinso Belgium NV (RIPE NCC) on 2019-11-21 19:00 UTC: it came to the RIPE NCC from ARIN. 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