{"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":"66.118.0.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/66.118.0.0-66.118.63.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2021-10-04), allocated (dated 2021-10-07), allocated (dated 2021-10-08), allocated (dated 2021-10-20), allocated (dated 2021-10-26), allocated (dated 2022-01-07)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"22efee24948c8571","registry":"ARIN","report_date":"2021-10-04","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 66.118.0.0-66.118.63.255","resource_type":"ipv4","resource":"66.118.0.0/18","start":"66.118.0.0","end":"66.118.63.255","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":"2026-10-13T23:53:14+00:00","page":"https://rirtracker.com/ip/66.118.0.0-66.118.63.255/#e-22efee24948c8571","report_page":"https://rirtracker.com/arin/reports/2021-10-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.118.0.0-66.118.63.255.json","explanation":"ARIN's statistics show it reserved on 2021-10-03 and allocated (dated 2021-10-04), reserved on 2021-10-05. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.118.4.0-66.118.7.255, 66.118.8.0-66.118.11.255, 66.118.16.0-66.118.19.255, 66.118.20.0-66.118.23.255 and 10 more. The issuance is explained on those lines.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2021-October/004679.html","retrieved_at":"2026-10-12T18:41:30+00:00","summary":"ARIN-Issued report for 2021-10-04: \"Remove 66.118.0.0-66.118.63.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211003.gz","retrieved_at":"2026-10-12T22:49:51+00:00","summary":"ARIN delegated statistics 2021-10-03 (produced 2021-10-03T14:00:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211005.gz","retrieved_at":"2026-10-12T22:49:56+00:00","summary":"ARIN delegated statistics 2021-10-05 (produced 2021-10-05T14:00:13+00:00), after the report: allocated (dated 2021-10-04), reserved"}]},{"event_id":"a54c8bb5a98facc0","registry":"ARIN","report_date":"2017-10-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"66.118.0.0/18","start":"66.118.0.0","end":"66.118.63.255","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":"2026-10-14T00:03:31+00:00","page":"https://rirtracker.com/ip/66.118.0.0-66.118.63.255/#e-a54c8bb5a98facc0","report_page":"https://rirtracker.com/arin/reports/2017-10-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.118.0.0-66.118.63.255.json","observed":"66.118.0.0/18 allocated on 2017-10-10, reserved on 2017-10-11","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":"2017-12-09","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 2001-05-31) on 2017-10-09 and reserved on 2017-10-11. 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 2017-12-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171011.gz","retrieved_at":"2026-10-12T21:35:37+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 66.118.0.0/18 allocated on 2017-10-10, reserved on 2017-10-11"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171009.gz","retrieved_at":"2026-10-12T21:35:32+00:00","summary":"ARIN delegated statistics 2017-10-09 (produced 2017-10-09T05:10:38+00:00), before the report: allocated (dated 2001-05-31)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171011.gz","retrieved_at":"2026-10-12T21:35:37+00:00","summary":"ARIN delegated statistics 2017-10-11 (produced 2017-10-11T05:11:30+00:00), after the report: reserved"}]},{"event_id":"8dfa93c3d60461c8","registry":"ARIN","report_date":"2013-10-28","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"66.118.0.0/18","start":"66.118.0.0","end":"66.118.63.255","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":"2026-10-13T23:58:33+00:00","page":"https://rirtracker.com/ip/66.118.0.0-66.118.63.255/#e-8dfa93c3d60461c8","report_page":"https://rirtracker.com/arin/reports/2013-10-28/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.118.0.0-66.118.63.255.json","observed":"66.118.0.0/18 allocated on 2013-10-28, reserved on 2013-10-29","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":"2013-12-27","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 2001-05-31) on 2013-10-27 and reserved on 2013-10-29. 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 2013-12-27. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131029.gz","retrieved_at":"2026-10-12T20:06:46+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 66.118.0.0/18 allocated on 2013-10-28, reserved on 2013-10-29"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131027.gz","retrieved_at":"2026-10-12T20:06:41+00:00","summary":"ARIN delegated statistics 2013-10-27 (produced 2013-10-27T22:43:57+00:00), before the report: allocated (dated 2001-05-31)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20131029.gz","retrieved_at":"2026-10-12T20:06:46+00:00","summary":"ARIN delegated statistics 2013-10-29 (produced 2013-10-29T05:06:33+00:00), after the report: reserved"}]},{"event_id":"905f603ed251dc2f","registry":"ARIN","report_date":"2013-07-08","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"66.118.0.0/18","start":"66.118.0.0","end":"66.118.63.255","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":"2026-10-13T23:58:17+00:00","page":"https://rirtracker.com/ip/66.118.0.0-66.118.63.255/#e-905f603ed251dc2f","report_page":"https://rirtracker.com/arin/reports/2013-07-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.118.0.0-66.118.63.255.json","observed":"66.118.0.0/18 allocated on 2013-07-08, reserved on 2013-07-09","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":"2013-09-06","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 2001-05-31) on 2013-07-07 and reserved on 2013-07-09. 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 2013-09-06. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130709.gz","retrieved_at":"2026-10-12T20:01:25+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 66.118.0.0/18 allocated on 2013-07-08, reserved on 2013-07-09"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130707.gz","retrieved_at":"2026-10-12T20:01:20+00:00","summary":"ARIN delegated statistics 2013-07-07 (produced 2013-07-07T05:06:34+00:00), before the report: allocated (dated 2001-05-31)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-extended-20130709.gz","retrieved_at":"2026-10-12T20:01:25+00:00","summary":"ARIN delegated statistics 2013-07-09 (produced 2013-07-09T05:06:23+00:00), after the report: reserved"}]}],"classification_history":{"22efee24948c8571":[{"raw_change_id":173284,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:53:45+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-10-03 and allocated (dated 2021-10-04), reserved on 2021-10-05. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.118.4.0-66.118.7.255, 66.118.8.0-66.118.11.255, 66.118.16.0-66.118.19.255, 66.118.20.0-66.118.23.255 and 10 more. The issuance is explained on those lines."},{"raw_change_id":173284,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:06+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-10-03 and allocated (dated 2021-10-04), reserved on 2021-10-05. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.118.4.0-66.118.7.255, 66.118.8.0-66.118.11.255, 66.118.16.0-66.118.19.255, 66.118.20.0-66.118.23.255 and 10 more. The issuance is explained on those lines."},{"raw_change_id":173284,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:54+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-10-03 and allocated (dated 2021-10-04), reserved on 2021-10-05. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.118.4.0-66.118.7.255, 66.118.8.0-66.118.11.255, 66.118.16.0-66.118.19.255, 66.118.20.0-66.118.23.255 and 10 more. The issuance is explained on those lines."},{"raw_change_id":173284,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:14+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2021-10-03 and allocated (dated 2021-10-04), reserved on 2021-10-05. ARIN removed its own pool record for this range as part of issuing it: the same report adds 66.118.4.0-66.118.7.255, 66.118.8.0-66.118.11.255, 66.118.16.0-66.118.19.255, 66.118.20.0-66.118.23.255 and 10 more. The issuance is explained on those lines."}],"a54c8bb5a98facc0":[{"raw_change_id":341820,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:15:35+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 2001-05-31) on 2017-10-09 and reserved on 2017-10-11. 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 2017-12-09. This does not confirm availability."},{"raw_change_id":341820,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:48+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 2001-05-31) on 2017-10-09 and reserved on 2017-10-11. 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 2017-12-09. This does not confirm availability."},{"raw_change_id":341820,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:20+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 2001-05-31) on 2017-10-09 and reserved on 2017-10-11. 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 2017-12-09. This does not confirm availability."},{"raw_change_id":341820,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:31+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 2001-05-31) on 2017-10-09 and reserved on 2017-10-11. 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 2017-12-09. This does not confirm availability."}],"8dfa93c3d60461c8":[{"raw_change_id":264996,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:38:26+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 allocated (dated 2001-05-31) on 2013-10-27 and reserved on 2013-10-29. 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 2013-12-27. This does not confirm availability."},{"raw_change_id":264996,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:33+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 2001-05-31) on 2013-10-27 and reserved on 2013-10-29. 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 2013-12-27. This does not confirm availability."},{"raw_change_id":264996,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:46+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 2001-05-31) on 2013-10-27 and reserved on 2013-10-29. 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 2013-12-27. This does not confirm availability."},{"raw_change_id":264996,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:33+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 2001-05-31) on 2013-10-27 and reserved on 2013-10-29. 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 2013-12-27. This does not confirm availability."}],"905f603ed251dc2f":[{"raw_change_id":260767,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:36:14+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 2001-05-31) on 2013-07-07 and reserved on 2013-07-09. 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 2013-09-06. This does not confirm availability."},{"raw_change_id":260767,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:19+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 2001-05-31) on 2013-07-07 and reserved on 2013-07-09. 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 2013-09-06. This does not confirm availability."},{"raw_change_id":260767,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:32+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 2001-05-31) on 2013-07-07 and reserved on 2013-07-09. 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 2013-09-06. This does not confirm availability."},{"raw_change_id":260767,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:58:17+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 2001-05-31) on 2013-07-07 and reserved on 2013-07-09. 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 2013-09-06. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2021-10-04), allocated (dated 2021-10-07), allocated (dated 2021-10-08), allocated (dated 2021-10-20), allocated (dated 2021-10-26), allocated (dated 2022-01-07)"}}