{"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":"161.251.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/161.251.0.0-161.251.255.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1993-04-01)"},"current_holder":{"rir":"RIPE NCC","org":"Saudi Telecom Company JSC","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":53597,"date":"2017-05-08T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"S.C. GVM SISTEM 2003 S.R.L.","recipient_org":"Saudi Telecom Company JSC","range":"161.251.0.0/16","log":"RIPE NCC"},{"id":53242,"date":"2017-03-20T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"S.C. GVM SISTEM 2003 S.R.L.","range":"161.251.0.0/16","log":"RIPE NCC"},{"id":9007,"date":"2017-03-20T15:55:09Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"AKZO NOBEL, INC.","recipient_org":"GVM Sistem 2003 SRL","range":"161.251.0.0/16","log":"ARIN"},{"id":8386,"date":"2016-12-09T15:17:21Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"National Starch and Chemical Company","recipient_org":"AKZO NOBEL","range":"161.251.0.0/16","log":"ARIN"}],"events":[{"event_id":"89bfc60e818c1d53","registry":"RIPE NCC","report_date":"2017-05-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"161.251.0.0/16","start":"161.251.0.0","end":"161.251.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-RIPE NCC transfer","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"S.C. GVM SISTEM 2003 S.R.L.","recipient_organization":"Saudi Telecom Company JSC","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:19+00:00","page":"https://rirtracker.com/ip/161.251.0.0-161.251.255.255/#e-89bfc60e818c1d53","report_page":"https://rirtracker.com/ripe/reports/2017-05-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.251.0.0-161.251.255.255.json","observed":"Transfer: S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a transfer from S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC) on 2017-05-08 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.","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 2017-05-08 19:00 UTC, S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC); resources moved: 161.251.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2017/delegated-ripencc-extended-20170507.bz2","retrieved_at":"2026-10-12T21:19:31+00:00","summary":"RIPE NCC delegated statistics 2017-05-07 (produced 2017-05-07T21:59:59+00:00), before the change: allocated (dated 1993-04-01)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2017/delegated-ripencc-extended-20170508.bz2","retrieved_at":"2026-10-12T21:19:34+00:00","summary":"RIPE NCC delegated statistics 2017-05-08 (produced 2017-05-08T21:59:59+00:00), after the change: allocated (dated 1993-04-01)"}]},{"event_id":"6741ee49728ee3e4","registry":"ARIN","report_date":"2017-03-20","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"161.251.0.0/16","start":"161.251.0.0","end":"161.251.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"AKZO NOBEL, INC.","recipient_organization":"GVM Sistem 2003 SRL","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":"2026-10-14T00:02:52+00:00","page":"https://rirtracker.com/ip/161.251.0.0-161.251.255.255/#e-6741ee49728ee3e4","report_page":"https://rirtracker.com/arin/reports/2017-03-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.251.0.0-161.251.255.255.json","observed":"161.251.0.0/16 assigned on 2017-03-20, not listed on 2017-03-21","same_transfer_as":"e4fe3f88def1948a","explanation":"ARIN's transfer log records a transfer from AKZO NOBEL, INC. (ARIN) to GVM Sistem 2003 SRL (RIPE NCC) on 2017-03-20 15:55 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/2017/delegated-arin-extended-20170321.gz","retrieved_at":"2026-10-12T21:25:25+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 161.251.0.0/16 assigned on 2017-03-20, not listed on 2017-03-21"},{"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 2017-03-20 15:55 UTC, AKZO NOBEL, INC. (ARIN) to GVM Sistem 2003 SRL (RIPE NCC); resources moved: 161.251.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170319.gz","retrieved_at":"2026-10-12T21:25:20+00:00","summary":"ARIN delegated statistics 2017-03-19 (produced 2017-03-19T05:09:43+00:00), before the report: assigned (dated 1993-04-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170321.gz","retrieved_at":"2026-10-12T21:25:25+00:00","summary":"ARIN delegated statistics 2017-03-21 (produced 2017-03-21T05:08:10+00:00), after the report: not listed"}]},{"event_id":"e4fe3f88def1948a","registry":"RIPE NCC","report_date":"2017-03-20","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"161.251.0.0/16","start":"161.251.0.0","end":"161.251.255.255","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":"S.C. GVM SISTEM 2003 S.R.L.","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":"2026-10-13T23:47:18+00:00","page":"https://rirtracker.com/ip/161.251.0.0-161.251.255.255/#e-e4fe3f88def1948a","report_page":"https://rirtracker.com/ripe/reports/2017-03-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.251.0.0-161.251.255.255.json","observed":"Transfer: (no name) (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC)","same_transfer_as":"6741ee49728ee3e4","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) on 2017-03-20 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 2017-03-20 19:00 UTC, (no name) (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC); resources moved: 161.251.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2017/delegated-ripencc-extended-20170319.bz2","retrieved_at":"2026-10-12T21:16:06+00:00","summary":"RIPE NCC delegated statistics 2017-03-19 (produced 2017-03-19T22:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2017/delegated-ripencc-extended-20170320.bz2","retrieved_at":"2026-10-12T21:16:09+00:00","summary":"RIPE NCC delegated statistics 2017-03-20 (produced 2017-03-20T22:59:59+00:00), after the change: assigned (dated 1993-04-01)"}]},{"event_id":"e3d1c21048c9dd89","registry":"ARIN","report_date":"2016-12-09","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"161.251.0.0/16","start":"161.251.0.0","end":"161.251.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"National Starch and Chemical Company","recipient_organization":"AKZO NOBEL","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:27+00:00","page":"https://rirtracker.com/ip/161.251.0.0-161.251.255.255/#e-e3d1c21048c9dd89","report_page":"https://rirtracker.com/arin/reports/2016-12-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.251.0.0-161.251.255.255.json","observed":"Merger/acquisition: National Starch and Chemical Company (ARIN) to AKZO NOBEL (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from National Starch and Chemical Company (ARIN) to AKZO NOBEL (ARIN) on 2016-12-09 15:17 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","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: MERGER_ACQUISITION on 2016-12-09 15:17 UTC, National Starch and Chemical Company (ARIN) to AKZO NOBEL (ARIN); resources moved: 161.251.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161208.gz","retrieved_at":"2026-10-12T21:20:29+00:00","summary":"ARIN delegated statistics 2016-12-08 (produced 2016-12-08T06:10:54+00:00), before the report: assigned (dated 1993-04-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20161210.gz","retrieved_at":"2026-10-12T21:20:37+00:00","summary":"ARIN delegated statistics 2016-12-10 (produced 2016-12-10T06:09:45+00:00), after the report: assigned (dated 1993-04-01)"}]}],"classification_history":{"89bfc60e818c1d53":[{"raw_change_id":52757,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:42:50+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC) on 2017-05-08 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":52757,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:27+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC) on 2017-05-08 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":52757,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:41+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC) on 2017-05-08 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":52757,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:19+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) to Saudi Telecom Company JSC (RIPE NCC) on 2017-05-08 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"6741ee49728ee3e4":[{"raw_change_id":331626,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:10:18+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from AKZO NOBEL, INC. (ARIN) to GVM Sistem 2003 SRL (RIPE NCC) on 2017-03-20 15:55 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":331626,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:15+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from AKZO NOBEL, INC. (ARIN) to GVM Sistem 2003 SRL (RIPE NCC) on 2017-03-20 15:55 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":331626,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:58:46+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from AKZO NOBEL, INC. (ARIN) to GVM Sistem 2003 SRL (RIPE NCC) on 2017-03-20 15:55 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":331626,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:02:52+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from AKZO NOBEL, INC. (ARIN) to GVM Sistem 2003 SRL (RIPE NCC) on 2017-03-20 15:55 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."}],"e4fe3f88def1948a":[{"raw_change_id":52393,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:42:42+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) on 2017-03-20 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":52393,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:26+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) on 2017-03-20 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":52393,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:40+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) on 2017-03-20 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":52393,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:47:18+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to S.C. GVM SISTEM 2003 S.R.L. (RIPE NCC) on 2017-03-20 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."}],"e3d1c21048c9dd89":[{"raw_change_id":551214,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:27+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from National Starch and Chemical Company (ARIN) to AKZO NOBEL (ARIN) on 2016-12-09 15:17 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}]},"arin_statistics_now":{"status":"not listed"}}