{"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":"173.205.128.0/17","resource_type":"ipv4","page":"https://rirtracker.com/ip/173.205.128.0-173.205.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2009-11-20), allocated (dated 2019-08-02), allocated (dated 2019-08-08), allocated (dated 2019-08-09), allocated (dated 2019-08-26), allocated (dated 2019-09-09), allocated (dated 2019-10-11), allocated (dated 2020-01-22)"},"current_holder":{"rir":"ARIN","org":"Atlantic Metro Communications II, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":19865,"date":"2020-01-22T22:45:03Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Optoro, Inc.","range":"173.205.206.0/23","log":"ARIN"},{"id":19055,"date":"2019-10-11T15:10:51Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Clarksville Connected Utilities","range":"173.205.222.0/23","log":"ARIN"},{"id":18790,"date":"2019-09-09T18:38:07Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Pilot Fiber, Inc.","range":"173.205.208.0/21","log":"ARIN"},{"id":18713,"date":"2019-08-26T15:43:34Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Mid-Hudson Cablevision, Inc.","range":"173.205.224.0/19","log":"ARIN"},{"id":18601,"date":"2019-08-09T20:38:47Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"H5 Data Centers","range":"173.205.216.0/22","log":"ARIN"},{"id":18598,"date":"2019-08-09T15:09:49Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Linux Global","range":"173.205.220.0/23","log":"ARIN"},{"id":18592,"date":"2019-08-08T20:46:45Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Commercial Vehicle Group","range":"173.205.204.0/23","log":"ARIN"},{"id":18585,"date":"2019-08-08T15:45:26Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Equinix, Inc.","range":"173.205.192.0/21","log":"ARIN"},{"id":18551,"date":"2019-08-02T17:58:24Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Swayzee Telephone Company, Inc.","range":"173.205.200.0/22","log":"ARIN"},{"id":17421,"date":"2019-04-15T17:57:17Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"InfoRelay Online Systems, Inc.","recipient_org":"Atlantic Metro Communications II, Inc.","range":"173.205.128.0/17","log":"ARIN"}],"events":[{"event_id":"e7ae6d00057629b8","registry":"ARIN","report_date":"2019-04-15","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"173.205.128.0/17","start":"173.205.128.0","end":"173.205.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"InfoRelay Online Systems, Inc.","recipient_organization":"Atlantic Metro Communications II, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:44+00:00","page":"https://rirtracker.com/ip/173.205.128.0-173.205.255.255/#e-e7ae6d00057629b8","report_page":"https://rirtracker.com/arin/reports/2019-04-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.205.128.0-173.205.255.255.json","observed":"Merger/acquisition: InfoRelay Online Systems, Inc. (ARIN) to Atlantic Metro Communications II, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from InfoRelay Online Systems, Inc. (ARIN) to Atlantic Metro Communications II, Inc. (ARIN) on 2019-04-15 17:57 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 2019-04-15 17:57 UTC, InfoRelay Online Systems, Inc. (ARIN) to Atlantic Metro Communications II, Inc. (ARIN); resources moved: 173.205.128.0/17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190414.gz","retrieved_at":"2026-10-12T22:03:29+00:00","summary":"ARIN delegated statistics 2019-04-14 (produced 2019-04-14T05:00:12+00:00), before the report: allocated (dated 2009-11-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190416.gz","retrieved_at":"2026-10-12T22:03:34+00:00","summary":"ARIN delegated statistics 2019-04-16 (produced 2019-04-16T05:00:13+00:00), after the report: allocated (dated 2009-11-20)"}]},{"event_id":"9c919a41e5ec1634","registry":"ARIN","report_date":"2009-11-20","source":"arin_issued","raw_action":"ADD","raw_line":"Add 173.205.128.0-173.205.255.255","resource_type":"ipv4","resource":"173.205.128.0/17","start":"173.205.128.0","end":"173.205.255.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-13T23:50:47+00:00","page":"https://rirtracker.com/ip/173.205.128.0-173.205.255.255/#e-9c919a41e5ec1634","report_page":"https://rirtracker.com/arin/reports/2009-11-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.205.128.0-173.205.255.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-11-19 and allocated (dated 2009-11-20) on 2009-11-21. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2009-November/000337.html","retrieved_at":"2026-10-12T18:36:28+00:00","summary":"ARIN-Issued report for 2009-11-20: \"Add 173.205.128.0-173.205.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20091119.gz","retrieved_at":"2026-10-12T18:57:53+00:00","summary":"ARIN delegated statistics 2009-11-19, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20091121.gz","retrieved_at":"2026-10-12T18:58:00+00:00","summary":"ARIN delegated statistics 2009-11-21, after the report: allocated (dated 2009-11-20)"}]}],"classification_history":{"e7ae6d00057629b8":[{"raw_change_id":558248,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:44+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from InfoRelay Online Systems, Inc. (ARIN) to Atlantic Metro Communications II, Inc. (ARIN) on 2019-04-15 17:57 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."}],"9c919a41e5ec1634":[{"raw_change_id":120570,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:11:43+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-11-19 and allocated (dated 2009-11-20) on 2009-11-21. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":120570,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:15+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-11-19 and allocated (dated 2009-11-20) on 2009-11-21. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":120570,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:48+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-11-19 and allocated (dated 2009-11-20) on 2009-11-21. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":120570,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:47+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-11-19 and allocated (dated 2009-11-20) on 2009-11-21. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2009-11-20), allocated (dated 2019-08-02), allocated (dated 2019-08-08), allocated (dated 2019-08-09), allocated (dated 2019-08-26), allocated (dated 2019-09-09), allocated (dated 2019-10-11), allocated (dated 2020-01-22)"}}