{"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":"130.51.172.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/130.51.172.0-130.51.175.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-02-03)"},"current_holder":{"rir":"ARIN","org":"CG COMPUTER WORKS LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":43350,"date":"2026-03-31T14:29:53Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Computer Works of Arkansas, Inc.","recipient_org":"CG COMPUTER WORKS LLC","range":"130.51.172.0/22","log":"ARIN"}],"events":[{"event_id":"0f9f624b6bf1d178","registry":"ARIN","report_date":"2026-03-31","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"130.51.172.0/22","start":"130.51.172.0","end":"130.51.175.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"The Computer Works of Arkansas, Inc.","recipient_organization":"CG COMPUTER WORKS LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:27+00:00","page":"https://rirtracker.com/ip/130.51.172.0-130.51.175.255/#e-0f9f624b6bf1d178","report_page":"https://rirtracker.com/arin/reports/2026-03-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/130.51.172.0-130.51.175.255.json","observed":"Merger/acquisition: The Computer Works of Arkansas, Inc. (ARIN) to CG COMPUTER WORKS LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from The Computer Works of Arkansas, Inc. (ARIN) to CG COMPUTER WORKS LLC (ARIN) on 2026-03-31 14:29 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 2026-03-31 14:29 UTC, The Computer Works of Arkansas, Inc. (ARIN) to CG COMPUTER WORKS LLC (ARIN); resources moved: 130.51.172.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260330","retrieved_at":"2026-10-09T18:59:03+00:00","summary":"ARIN delegated statistics 2026-03-30 (produced 2026-03-30T13:00:38+00:00), before the report: allocated (dated 2020-02-03)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260401","retrieved_at":"2026-10-09T18:59:10+00:00","summary":"ARIN delegated statistics 2026-04-01 (produced 2026-04-01T13:00:38+00:00), after the report: allocated (dated 2020-02-03)"}]},{"event_id":"fcf19b802f1de2d5","registry":"ARIN","report_date":"2020-02-03","source":"arin_issued","raw_action":"ADD","raw_line":"Add 130.51.172.0-130.51.175.255","resource_type":"ipv4","resource":"130.51.172.0/22","start":"130.51.172.0","end":"130.51.175.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:44+00:00","page":"https://rirtracker.com/ip/130.51.172.0-130.51.175.255/#e-fcf19b802f1de2d5","report_page":"https://rirtracker.com/arin/reports/2020-02-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/130.51.172.0-130.51.175.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. The tracker saw this range released from hold on 2020-01-17 (130.51.148.0-130.51.191.255), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2020-February/004070.html","retrieved_at":"2026-10-12T18:40:48+00:00","summary":"ARIN-Issued report for 2020-02-03: \"Add 130.51.172.0-130.51.175.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200202.gz","retrieved_at":"2026-10-12T22:18:34+00:00","summary":"ARIN delegated statistics 2020-02-02 (produced 2020-02-02T15:00:14+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200204.gz","retrieved_at":"2026-10-12T22:18:39+00:00","summary":"ARIN delegated statistics 2020-02-04 (produced 2020-02-04T15:00:13+00:00), after the report: allocated (dated 2020-02-03)"}]},{"event_id":"0df23a368ee250c1","registry":"ARIN","report_date":"2020-02-03","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 130.51.172.0-130.51.175.255","resource_type":"ipv4","resource":"130.51.172.0/22","start":"130.51.172.0","end":"130.51.175.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:44+00:00","page":"https://rirtracker.com/ip/130.51.172.0-130.51.175.255/#e-0df23a368ee250c1","report_page":"https://rirtracker.com/arin/reports/2020-02-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/130.51.172.0-130.51.175.255.json","explanation":"ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 130.51.172.0-130.51.175.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2020-February/004070.html","retrieved_at":"2026-10-12T18:40:48+00:00","summary":"ARIN-Issued report for 2020-02-03: \"Remove 130.51.172.0-130.51.175.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200202.gz","retrieved_at":"2026-10-12T22:18:34+00:00","summary":"ARIN delegated statistics 2020-02-02 (produced 2020-02-02T15:00:14+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200204.gz","retrieved_at":"2026-10-12T22:18:39+00:00","summary":"ARIN delegated statistics 2020-02-04 (produced 2020-02-04T15:00:13+00:00), after the report: allocated (dated 2020-02-03)"}]}],"classification_history":{"0f9f624b6bf1d178":[{"raw_change_id":575784,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:27+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from The Computer Works of Arkansas, Inc. (ARIN) to CG COMPUTER WORKS LLC (ARIN) on 2026-03-31 14:29 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."}],"fcf19b802f1de2d5":[{"raw_change_id":163830,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:47:12+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. The tracker saw this range released from hold on 2020-01-17 (130.51.148.0-130.51.191.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":163830,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:43+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. The tracker saw this range released from hold on 2020-01-17 (130.51.148.0-130.51.191.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":163830,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:28+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. The tracker saw this range released from hold on 2020-01-17 (130.51.148.0-130.51.191.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":163830,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:44+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. The tracker saw this range released from hold on 2020-01-17 (130.51.148.0-130.51.191.255), so it appears to have been issued again from ARIN's pool."}],"0df23a368ee250c1":[{"raw_change_id":163822,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:47:11+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 130.51.172.0-130.51.175.255. The issuance is explained on that line."},{"raw_change_id":163822,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:43+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 130.51.172.0-130.51.175.255. The issuance is explained on that line."},{"raw_change_id":163822,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:28+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 130.51.172.0-130.51.175.255. The issuance is explained on that line."},{"raw_change_id":163822,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:44+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2020-02-02 and allocated (dated 2020-02-03) on 2020-02-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 130.51.172.0-130.51.175.255. The issuance is explained on that line."}]},"arin_statistics_now":{"status":"allocated (dated 2020-02-03)"}}