{"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":"151.184.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/151.184.0.0-151.184.255.255/","statistics_now":{"registry":"RIPE NCC","status":"assigned (dated 1991-09-17)"},"current_holder":{"rir":"RIPE NCC","org":"KPN B.V.","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":7131,"date":"2016-06-07T19:02:06Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Koninklijke KPN N.V.","recipient_org":"KPN B.V.","range":"151.184.0.0/16","log":"ARIN"},{"id":50768,"date":"2016-06-07T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"KPN B.V.","range":"151.184.0.0/16","log":"RIPE NCC"}],"events":[{"event_id":"8c5b2e26a6b52a57","registry":"ARIN","report_date":"2016-06-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"151.184.0.0/16","start":"151.184.0.0","end":"151.184.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Koninklijke KPN N.V.","recipient_organization":"KPN 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":"2026-10-14T00:02:03+00:00","page":"https://rirtracker.com/ip/151.184.0.0-151.184.255.255/#e-8c5b2e26a6b52a57","report_page":"https://rirtracker.com/arin/reports/2016-06-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.184.0.0-151.184.255.255.json","observed":"151.184.0.0/16 assigned on 2016-06-07, not listed on 2016-06-08","same_transfer_as":"50a7bc3debbc4c68","explanation":"ARIN's transfer log records a transfer from Koninklijke KPN N.V. (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 19:02 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/2016/delegated-arin-extended-20160608.gz","retrieved_at":"2026-10-12T21:11:34+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 151.184.0.0/16 assigned on 2016-06-07, not listed on 2016-06-08"},{"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 2016-06-07 19:02 UTC, Koninklijke KPN N.V. (ARIN) to KPN B.V. (RIPE NCC); resources moved: 151.184.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160606.gz","retrieved_at":"2026-10-12T21:11:29+00:00","summary":"ARIN delegated statistics 2016-06-06 (produced 2016-06-06T05:04:32+00:00), before the report: assigned (dated 1991-09-17)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160608.gz","retrieved_at":"2026-10-12T21:11:34+00:00","summary":"ARIN delegated statistics 2016-06-08 (produced 2016-06-08T05:04:16+00:00), after the report: not listed"}]},{"event_id":"50a7bc3debbc4c68","registry":"RIPE NCC","report_date":"2016-06-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"151.184.0.0/16","start":"151.184.0.0","end":"151.184.255.255","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":"KPN 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":"2026-10-13T23:47:11+00:00","page":"https://rirtracker.com/ip/151.184.0.0-151.184.255.255/#e-50a7bc3debbc4c68","report_page":"https://rirtracker.com/ripe/reports/2016-06-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/151.184.0.0-151.184.255.255.json","observed":"Transfer: (no name) (ARIN) to KPN B.V. (RIPE NCC)","same_transfer_as":"8c5b2e26a6b52a57","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 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 2016-06-07 19:00 UTC, (no name) (ARIN) to KPN B.V. (RIPE NCC); resources moved: 151.184.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160606.bz2","retrieved_at":"2026-10-12T20:57:21+00:00","summary":"RIPE NCC delegated statistics 2016-06-06 (produced 2016-06-06T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2016/delegated-ripencc-extended-20160607.bz2","retrieved_at":"2026-10-12T20:57:24+00:00","summary":"RIPE NCC delegated statistics 2016-06-07 (produced 2016-06-07T21:59:59+00:00), after the change: assigned (dated 1991-09-17)"}]}],"classification_history":{"8c5b2e26a6b52a57":[{"raw_change_id":319050,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:04:23+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Koninklijke KPN N.V. (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 19:02 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":319050,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:14:33+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Koninklijke KPN N.V. (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 19:02 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":319050,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:58:01+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Koninklijke KPN N.V. (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 19:02 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":319050,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:02:03+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Koninklijke KPN N.V. (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 19:02 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."}],"50a7bc3debbc4c68":[{"raw_change_id":49830,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:41:38+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 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."},{"raw_change_id":49830,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:11+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to KPN B.V. (RIPE NCC) on 2016-06-07 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."}]},"arin_statistics_now":{"status":"not listed"}}