{"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":"173.44.0.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2015-03-06)"},"current_holder":{"rir":"ARIN","org":"U.S. Marshals Service in accordance with the Final Order of Forfeiture","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":35470,"date":"2024-05-08T22:10:30Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Micfo, LLC.","recipient_org":"U.S. Marshals Service in accordance with the Final Order of Forfeiture","range":"173.44.0.0/19","log":"ARIN"},{"id":17981,"date":"2019-05-23T20:13:38Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Border Technology, LLC","recipient_org":"Micfo, LLC.","range":"173.44.0.0/19","log":"ARIN"}],"events":[{"event_id":"3ed12f7fea2f69d7","registry":"ARIN","report_date":"2024-05-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Micfo, LLC.","recipient_organization":"U.S. Marshals Service in accordance with the Final Order of Forfeiture","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:14+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-3ed12f7fea2f69d7","report_page":"https://rirtracker.com/arin/reports/2024-05-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","observed":"Merger/acquisition: Micfo, LLC. (ARIN) to U.S. Marshals Service in accordance with the Final Order of Forfeiture (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Micfo, LLC. (ARIN) to U.S. Marshals Service in accordance with the Final Order of Forfeiture (ARIN) on 2024-05-08 22:10 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 2024-05-08 22:10 UTC, Micfo, LLC. (ARIN) to U.S. Marshals Service in accordance with the Final Order of Forfeiture (ARIN); resources moved: 173.44.0.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240507.gz","retrieved_at":"2026-10-12T23:39:40+00:00","summary":"ARIN delegated statistics 2024-05-07 (produced 2024-05-07T13:00:50+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240509.gz","retrieved_at":"2026-10-12T23:39:44+00:00","summary":"ARIN delegated statistics 2024-05-09 (produced 2024-05-09T13:00:47+00:00), after the report: allocated (dated 2015-03-06)"}]},{"event_id":"3d9da8072704f6ac","registry":"ARIN","report_date":"2021-11-23","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","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":"2026-10-14T00:08:45+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-3d9da8072704f6ac","report_page":"https://rirtracker.com/arin/reports/2021-11-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","observed":"173.44.0.0/19 allocated on 2021-11-23, reserved on 2021-11-24","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":"2022-01-22","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 allocated (dated 2015-03-06) on 2021-11-22 and reserved on 2021-11-24. 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 2022-01-22. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211124.gz","retrieved_at":"2026-10-12T22:52:41+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 173.44.0.0/19 allocated on 2021-11-23, reserved on 2021-11-24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211122.gz","retrieved_at":"2026-10-12T22:52:36+00:00","summary":"ARIN delegated statistics 2021-11-22 (produced 2021-11-22T14:00:13+00:00), before the report: allocated (dated 2015-03-06)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211124.gz","retrieved_at":"2026-10-12T22:52:41+00:00","summary":"ARIN delegated statistics 2021-11-24 (produced 2021-11-24T14:00:13+00:00), after the report: reserved"}]},{"event_id":"d1aa894256988185","registry":"ARIN","report_date":"2019-05-23","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Border Technology, LLC","recipient_organization":"Micfo, LLC.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:45+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-d1aa894256988185","report_page":"https://rirtracker.com/arin/reports/2019-05-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","observed":"Merger/acquisition: Border Technology, LLC (ARIN) to Micfo, LLC. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Border Technology, LLC (ARIN) to Micfo, LLC. (ARIN) on 2019-05-23 20:13 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 2019-05-23 20:13 UTC, Border Technology, LLC (ARIN) to Micfo, LLC. (ARIN); resources moved: 173.44.0.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190522.gz","retrieved_at":"2026-10-12T22:05:22+00:00","summary":"ARIN delegated statistics 2019-05-22 (produced 2019-05-22T05:00:17+00:00), before the report: allocated (dated 2015-03-06)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190524.gz","retrieved_at":"2026-10-12T22:05:34+00:00","summary":"ARIN delegated statistics 2019-05-24 (produced 2019-05-24T05:00:17+00:00), after the report: allocated (dated 2015-03-06)"}]},{"event_id":"899eb996307fa28f","registry":"ARIN","report_date":"2017-06-13","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","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":"2026-10-14T00:03:10+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-899eb996307fa28f","report_page":"https://rirtracker.com/arin/reports/2017-06-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","observed":"173.44.0.0/19 allocated on 2017-06-13, reserved on 2017-06-14","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":"2017-08-12","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 allocated (dated 2015-03-06) on 2017-06-12 and reserved on 2017-06-14. 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 2017-08-12. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170614.gz","retrieved_at":"2026-10-12T21:29:41+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 173.44.0.0/19 allocated on 2017-06-13, reserved on 2017-06-14"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170612.gz","retrieved_at":"2026-10-12T21:29:36+00:00","summary":"ARIN delegated statistics 2017-06-12 (produced 2017-06-12T05:10:01+00:00), before the report: allocated (dated 2015-03-06)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170614.gz","retrieved_at":"2026-10-12T21:29:41+00:00","summary":"ARIN delegated statistics 2017-06-14 (produced 2017-06-14T05:10:20+00:00), after the report: reserved"}]},{"event_id":"1c4634b68c2ea515","registry":"ARIN","report_date":"2016-06-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","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":"2026-10-14T00:02:03+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-1c4634b68c2ea515","report_page":"https://rirtracker.com/arin/reports/2016-06-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","observed":"173.44.0.0/19 allocated on 2016-06-07, reserved on 2016-06-08","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":"2016-08-06","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 allocated (dated 2015-03-06) on 2016-06-06 and reserved on 2016-06-08. 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 2016-08-06. This does not confirm availability.","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: 173.44.0.0/19 allocated on 2016-06-07, reserved on 2016-06-08"},{"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: allocated (dated 2015-03-06)"},{"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: reserved"}]},{"event_id":"fef0bbd0c27f598e","registry":"ARIN","report_date":"2015-03-06","source":"arin_issued","raw_action":"ADD","raw_line":"Add 173.44.0.0-173.44.31.255","resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","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":"2026-10-13T23:51:20+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-fef0bbd0c27f598e","report_page":"https://rirtracker.com/arin/reports/2015-03-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2015-03-05 and allocated (dated 2015-03-06) on 2015-03-07. The tracker saw this range released from hold on 2015-02-20 (173.44.0.0-173.44.31.255), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2015-March/002277.html","retrieved_at":"2026-10-12T18:38:43+00:00","summary":"ARIN-Issued report for 2015-03-06: \"Add 173.44.0.0-173.44.31.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150305.gz","retrieved_at":"2026-10-12T20:49:07+00:00","summary":"ARIN delegated statistics 2015-03-05 (produced 2015-03-05T06:05:20+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150307.gz","retrieved_at":"2026-10-12T20:49:19+00:00","summary":"ARIN delegated statistics 2015-03-07 (produced 2015-03-07T06:05:26+00:00), after the report: allocated (dated 2015-03-06)"}]},{"event_id":"b3873fa19cc7902d","registry":"ARIN","report_date":"2015-02-20","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 173.44.0.0-173.44.31.255","resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","classification":"HOLD_RELEASED","classification_label":"Released from hold (ARIN lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"ARIN's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:19+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-b3873fa19cc7902d","report_page":"https://rirtracker.com/arin/reports/2015-02-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","explanation":"ARIN's statistics show it reserved on 2015-02-19 and available on 2015-02-21. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2014-12-09, 73 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2015-February/002263.html","retrieved_at":"2026-10-12T18:38:41+00:00","summary":"ARIN-Issued report for 2015-02-20: \"Remove 173.44.0.0-173.44.31.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150219.gz","retrieved_at":"2026-10-12T20:48:26+00:00","summary":"ARIN delegated statistics 2015-02-19 (produced 2015-02-19T06:05:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2015/delegated-arin-extended-20150221.gz","retrieved_at":"2026-10-12T20:48:37+00:00","summary":"ARIN delegated statistics 2015-02-21 (produced 2015-02-21T06:05:18+00:00), after the report: available"}]},{"event_id":"838ab5caad9badea","registry":"ARIN","report_date":"2014-12-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"173.44.0.0/19","start":"173.44.0.0","end":"173.44.31.255","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":"2026-10-14T00:00:28+00:00","page":"https://rirtracker.com/ip/173.44.0.0-173.44.31.255/#e-838ab5caad9badea","report_page":"https://rirtracker.com/arin/reports/2014-12-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/173.44.0.0-173.44.31.255.json","observed":"173.44.0.0/19 allocated on 2014-12-09, reserved on 2014-12-10","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":"2015-02-07","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 allocated (dated 2008-09-29) on 2014-12-08 and reserved on 2014-12-10. 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 2015-02-07. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20141210.gz","retrieved_at":"2026-10-12T20:45:11+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 173.44.0.0/19 allocated on 2014-12-09, reserved on 2014-12-10"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20141208.gz","retrieved_at":"2026-10-12T20:45:07+00:00","summary":"ARIN delegated statistics 2014-12-08 (produced 2014-12-08T06:05:15+00:00), before the report: allocated (dated 2008-09-29)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20141210.gz","retrieved_at":"2026-10-12T20:45:11+00:00","summary":"ARIN delegated statistics 2014-12-10 (produced 2014-12-10T06:04:29+00:00), after the report: reserved"}]}],"classification_history":{"3ed12f7fea2f69d7":[{"raw_change_id":570846,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:14+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Micfo, LLC. (ARIN) to U.S. Marshals Service in accordance with the Final Order of Forfeiture (ARIN) on 2024-05-08 22:10 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."}],"3d9da8072704f6ac":[{"raw_change_id":420783,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:48:22+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 allocated (dated 2015-03-06) on 2021-11-22 and reserved on 2021-11-24. 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 2022-01-22. This does not confirm availability."},{"raw_change_id":420783,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:07+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 allocated (dated 2015-03-06) on 2021-11-22 and reserved on 2021-11-24. 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 2022-01-22. This does not confirm availability."},{"raw_change_id":420783,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:03:59+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 allocated (dated 2015-03-06) on 2021-11-22 and reserved on 2021-11-24. 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 2022-01-22. This does not confirm availability."},{"raw_change_id":420783,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:08:45+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 allocated (dated 2015-03-06) on 2021-11-22 and reserved on 2021-11-24. 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 2022-01-22. This does not confirm availability."}],"d1aa894256988185":[{"raw_change_id":558754,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:45+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Border Technology, LLC (ARIN) to Micfo, LLC. (ARIN) on 2019-05-23 20:13 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."}],"899eb996307fa28f":[{"raw_change_id":336325,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:12:46+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 allocated (dated 2015-03-06) on 2017-06-12 and reserved on 2017-06-14. 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 2017-08-12. This does not confirm availability."},{"raw_change_id":336325,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:30+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 allocated (dated 2015-03-06) on 2017-06-12 and reserved on 2017-06-14. 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 2017-08-12. This does not confirm availability."},{"raw_change_id":336325,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:01+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 allocated (dated 2015-03-06) on 2017-06-12 and reserved on 2017-06-14. 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 2017-08-12. This does not confirm availability."},{"raw_change_id":336325,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:10+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 allocated (dated 2015-03-06) on 2017-06-12 and reserved on 2017-06-14. 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 2017-08-12. This does not confirm availability."}],"1c4634b68c2ea515":[{"raw_change_id":319057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:04:24+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 allocated (dated 2015-03-06) on 2016-06-06 and reserved on 2016-06-08. 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 2016-08-06. This does not confirm availability."},{"raw_change_id":319057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:14:33+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 allocated (dated 2015-03-06) on 2016-06-06 and reserved on 2016-06-08. 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 2016-08-06. This does not confirm availability."},{"raw_change_id":319057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:58:01+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 allocated (dated 2015-03-06) on 2016-06-06 and reserved on 2016-06-08. 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 2016-08-06. This does not confirm availability."},{"raw_change_id":319057,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:02:03+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 allocated (dated 2015-03-06) on 2016-06-06 and reserved on 2016-06-08. 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 2016-08-06. This does not confirm availability."}],"fef0bbd0c27f598e":[{"raw_change_id":136254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:29:39+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-03-05 and allocated (dated 2015-03-06) on 2015-03-07. The tracker saw this range released from hold on 2015-02-20 (173.44.0.0-173.44.31.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":136254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:40+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-03-05 and allocated (dated 2015-03-06) on 2015-03-07. The tracker saw this range released from hold on 2015-02-20 (173.44.0.0-173.44.31.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":136254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:17+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-03-05 and allocated (dated 2015-03-06) on 2015-03-07. The tracker saw this range released from hold on 2015-02-20 (173.44.0.0-173.44.31.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":136254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:20+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2015-03-05 and allocated (dated 2015-03-06) on 2015-03-07. The tracker saw this range released from hold on 2015-02-20 (173.44.0.0-173.44.31.255), so it appears to have been issued again from ARIN's pool."}],"b3873fa19cc7902d":[{"raw_change_id":135973,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:29:24+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2015-02-19 and available on 2015-02-21. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2014-12-09, 73 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":135973,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:39+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2015-02-19 and available on 2015-02-21. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2014-12-09, 73 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":135973,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:16+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2015-02-19 and available on 2015-02-21. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2014-12-09, 73 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":135973,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:19+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2015-02-19 and available on 2015-02-21. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2014-12-09, 73 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed."}],"838ab5caad9badea":[{"raw_change_id":294592,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:53:22+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 allocated (dated 2008-09-29) on 2014-12-08 and reserved on 2014-12-10. 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 2015-02-07. This does not confirm availability."},{"raw_change_id":294592,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:13:12+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 allocated (dated 2008-09-29) on 2014-12-08 and reserved on 2014-12-10. 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 2015-02-07. This does not confirm availability."},{"raw_change_id":294592,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:56:34+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 allocated (dated 2008-09-29) on 2014-12-08 and reserved on 2014-12-10. 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 2015-02-07. This does not confirm availability."},{"raw_change_id":294592,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:00:28+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 allocated (dated 2008-09-29) on 2014-12-08 and reserved on 2014-12-10. 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 2015-02-07. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2015-03-06)"}}