{"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":"174.128.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/174.128.0.0-174.128.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (16 records, dated 2010-06-17 to 2026-06-04) (only part of the range)"},"current_holder":{"rir":null,"org":null,"how":null},"rdap_snapshots":[],"transfers":[{"id":45410,"date":"2026-09-01T12:09:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Towerstream I, Inc.","recipient_org":"PALANTIR TECHNOLOGIES INC.","range":"174.128.204.0/22","log":"ARIN"},{"id":131827,"date":"2026-09-01T06:48:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"TOWER-20","recipient_org":"Indonesia Network Information Center/IDNIC-RNA-ID","range":"174.128.204.0/22","log":"APNIC"},{"id":44196,"date":"2026-06-04T16:51:33Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Towerstream I, Inc.","recipient_org":"WIGGINS TELEPHONE ASSOCIATION","range":"174.128.200.0/22","log":"ARIN"},{"id":35723,"date":"2024-05-29T12:14:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Towerstream I, Inc.","recipient_org":"Natural Wireless, LLC","range":"174.128.192.0/21","log":"ARIN"},{"id":35724,"date":"2024-05-29T12:14:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Towerstream I, Inc.","recipient_org":"Natural Wireless, LLC","range":"174.128.208.0/21","log":"ARIN"},{"id":29650,"date":"2022-11-17T16:06:13Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"On Deck Capital, Inc.","recipient_org":"Enova International, Inc.","range":"174.128.186.0/23","log":"ARIN"},{"id":20102,"date":"2020-02-25T23:50:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"IO Capital Princess, LLC","recipient_org":"Iron Mountain Data Center","range":"174.128.0.0/18","log":"ARIN"},{"id":18792,"date":"2019-09-09T20:10:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Private National Mortgage Acceptance Company LLC","range":"174.128.191.0/24","log":"ARIN"},{"id":18520,"date":"2019-07-29T14:25:24Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"National Mortgage Insurance Corporation","range":"174.128.190.0/24","log":"ARIN"},{"id":18431,"date":"2019-07-11T20:53:04Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"Network Technology Solutions, LLC","range":"174.128.188.0/23","log":"ARIN"},{"id":18378,"date":"2019-07-01T12:31:51Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"BENJAMIN MOORE & CO","range":"174.128.185.0/24","log":"ARIN"},{"id":18258,"date":"2019-06-17T15:08:37Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"ecoLINK","range":"174.128.128.0/19","log":"ARIN"},{"id":18211,"date":"2019-06-13T19:31:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"On Deck Capital, Inc.","range":"174.128.186.0/23","log":"ARIN"},{"id":17848,"date":"2019-05-09T20:50:20Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Atlantic Metro Communications II, Inc.","recipient_org":"TELCOR Inc","range":"174.128.184.0/24","log":"ARIN"},{"id":17422,"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":"174.128.128.0/18","log":"ARIN"}],"events":[{"event_id":"b4a49a99ace3ccb7","registry":"ARIN","report_date":"2010-04-12","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 174.128.0.0-174.128.255.255","resource_type":"ipv4","resource":"174.128.0.0/16","start":"174.128.0.0","end":"174.128.255.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:48+00:00","page":"https://rirtracker.com/ip/174.128.0.0-174.128.255.255/#e-b4a49a99ace3ccb7","report_page":"https://rirtracker.com/arin/reports/2010-04-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/174.128.0.0-174.128.255.255.json","explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-04-11 and not issued on 2010-04-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2010-April/000482.html","retrieved_at":"2026-10-12T18:36:38+00:00","summary":"ARIN-Issued report for 2010-04-12: \"Remove 174.128.0.0-174.128.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100411.gz","retrieved_at":"2026-10-12T19:03:47+00:00","summary":"ARIN delegated statistics 2010-04-11, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100413.gz","retrieved_at":"2026-10-12T19:03:52+00:00","summary":"ARIN delegated statistics 2010-04-13, after the report: not issued"}]},{"event_id":"2a62af9ba4e51210","registry":"ARIN","report_date":"2009-04-08","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"174.128.0.0/16","start":"174.128.0.0","end":"174.128.255.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:59+00:00","page":"https://rirtracker.com/ip/174.128.0.0-174.128.255.255/#e-2a62af9ba4e51210","report_page":"https://rirtracker.com/arin/reports/2009-04-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/174.128.0.0-174.128.255.255.json","observed":"174.128.0.0/16 assigned on 2009-04-08, not listed on 2009-04-09","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_days":60,"estimated_hold_end":"2009-06-07","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-02-27) on 2009-04-07 and not issued on 2009-04-09. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2009-06-07. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090409.gz","retrieved_at":"2026-10-12T18:48:41+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 174.128.0.0/16 assigned on 2009-04-08, not listed on 2009-04-09"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090407.gz","retrieved_at":"2026-10-12T18:48:37+00:00","summary":"ARIN delegated statistics 2009-04-07, before the report: assigned (dated 2008-02-27)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090409.gz","retrieved_at":"2026-10-12T18:48:41+00:00","summary":"ARIN delegated statistics 2009-04-09, after the report: not issued"}]}],"classification_history":{"b4a49a99ace3ccb7":[{"raw_change_id":121153,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:12:00+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-04-11 and not issued on 2010-04-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":121153,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:16+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-04-11 and not issued on 2010-04-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":121153,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:49+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-04-11 and not issued on 2010-04-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":121153,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:48+00:00","current":1,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-04-11 and not issued on 2010-04-13. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."}],"2a62af9ba4e51210":[{"raw_change_id":203480,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:10:27+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-02-27) on 2009-04-07 and not issued on 2009-04-09. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2009-06-07. This does not confirm availability."},{"raw_change_id":203480,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:26+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-02-27) on 2009-04-07 and not issued on 2009-04-09. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2009-06-07. This does not confirm availability."},{"raw_change_id":203480,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:23+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-02-27) on 2009-04-07 and not issued on 2009-04-09. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2009-06-07. This does not confirm availability."},{"raw_change_id":203480,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:59+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2008-02-27) on 2009-04-07 and not issued on 2009-04-09. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2009-06-07. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (16 records, dated 2010-06-17 to 2026-06-04) (only part of the range)"}}