{"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":"205.207.133.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/205.207.133.0-205.207.133.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-12-26)"},"current_holder":{"rir":"ARIN","org":"Hydro One Sault Ste. Marie LP","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":9404,"date":"2017-04-27T16:49:40Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Great Lakes Power Transmission LP","recipient_org":"Hydro One Sault Ste. Marie LP","range":"205.207.133.0/24","log":"ARIN"},{"id":6609,"date":"2016-03-17T19:50:30Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Great Lakes Power Limited","recipient_org":"Great Lakes Power Transmission LP","range":"205.207.133.0/24","log":"ARIN"}],"events":[{"event_id":"e29a44bfc673c82e","registry":"ARIN","report_date":"2024-12-26","source":"arin_issued","raw_action":"ADD","raw_line":"Add 205.207.133.0-205.207.133.255","resource_type":"ipv4","resource":"205.207.133.0/24","start":"205.207.133.0","end":"205.207.133.255","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":"2026-10-13T23:54:18+00:00","page":"https://rirtracker.com/ip/205.207.133.0-205.207.133.255/#e-e29a44bfc673c82e","report_page":"https://rirtracker.com/arin/reports/2024-12-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.207.133.0-205.207.133.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. The tracker saw this range removed from registration on 2020-09-07 (205.207.133.0/24), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-December/005857.html","retrieved_at":"2026-10-12T18:42:50+00:00","summary":"ARIN-Issued report for 2024-12-26: \"Add 205.207.133.0-205.207.133.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241225.gz","retrieved_at":"2026-10-12T23:51:59+00:00","summary":"ARIN delegated statistics 2024-12-25 (produced 2024-12-25T14:01:06+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241227.gz","retrieved_at":"2026-10-12T23:52:14+00:00","summary":"ARIN delegated statistics 2024-12-27 (produced 2024-12-27T14:01:07+00:00), after the report: allocated (dated 2024-12-26)"}]},{"event_id":"ba01224a57eae12f","registry":"ARIN","report_date":"2024-12-26","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 205.207.133.0-205.207.133.255","resource_type":"ipv4","resource":"205.207.133.0/24","start":"205.207.133.0","end":"205.207.133.255","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":"2026-10-13T23:54:18+00:00","page":"https://rirtracker.com/ip/205.207.133.0-205.207.133.255/#e-ba01224a57eae12f","report_page":"https://rirtracker.com/arin/reports/2024-12-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.207.133.0-205.207.133.255.json","explanation":"ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. ARIN removed its own pool record for this range as part of issuing it: the same report adds 205.207.133.0-205.207.133.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-December/005857.html","retrieved_at":"2026-10-12T18:42:50+00:00","summary":"ARIN-Issued report for 2024-12-26: \"Remove 205.207.133.0-205.207.133.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241225.gz","retrieved_at":"2026-10-12T23:51:59+00:00","summary":"ARIN delegated statistics 2024-12-25 (produced 2024-12-25T14:01:06+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20241227.gz","retrieved_at":"2026-10-12T23:52:14+00:00","summary":"ARIN delegated statistics 2024-12-27 (produced 2024-12-27T14:01:07+00:00), after the report: allocated (dated 2024-12-26)"}]},{"event_id":"488642bfd1af6f66","registry":"ARIN","report_date":"2020-09-07","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"205.207.133.0/24","start":"205.207.133.0","end":"205.207.133.255","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":"2026-10-14T00:07:24+00:00","page":"https://rirtracker.com/ip/205.207.133.0-205.207.133.255/#e-488642bfd1af6f66","report_page":"https://rirtracker.com/arin/reports/2020-09-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.207.133.0-205.207.133.255.json","observed":"205.207.133.0/24 assigned on 2020-09-07, reserved on 2020-09-08","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":"2020-11-06","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 assigned (dated 1995-09-08) on 2020-09-06 and reserved on 2020-09-08. 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 2020-11-06. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200908.gz","retrieved_at":"2026-10-12T22:29:51+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 205.207.133.0/24 assigned on 2020-09-07, reserved on 2020-09-08"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200906.gz","retrieved_at":"2026-10-12T22:29:46+00:00","summary":"ARIN delegated statistics 2020-09-06 (produced 2020-09-06T14:00:14+00:00), before the report: assigned (dated 1995-09-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200908.gz","retrieved_at":"2026-10-12T22:29:51+00:00","summary":"ARIN delegated statistics 2020-09-08 (produced 2020-09-08T14:00:13+00:00), after the report: reserved"}]},{"event_id":"f5b9d89951318911","registry":"ARIN","report_date":"2017-04-27","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"205.207.133.0/24","start":"205.207.133.0","end":"205.207.133.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Great Lakes Power Transmission LP","recipient_organization":"Hydro One Sault Ste. Marie LP","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:29+00:00","page":"https://rirtracker.com/ip/205.207.133.0-205.207.133.255/#e-f5b9d89951318911","report_page":"https://rirtracker.com/arin/reports/2017-04-27/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.207.133.0-205.207.133.255.json","observed":"Merger/acquisition: Great Lakes Power Transmission LP (ARIN) to Hydro One Sault Ste. Marie LP (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Great Lakes Power Transmission LP (ARIN) to Hydro One Sault Ste. Marie LP (ARIN) on 2017-04-27 16:49 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 2017-04-27 16:49 UTC, Great Lakes Power Transmission LP (ARIN) to Hydro One Sault Ste. Marie LP (ARIN); resources moved: 205.207.133.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170426.gz","retrieved_at":"2026-10-12T21:27:09+00:00","summary":"ARIN delegated statistics 2017-04-26 (produced 2017-04-26T05:09:55+00:00), before the report: assigned (dated 1995-09-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170428.gz","retrieved_at":"2026-10-12T21:27:21+00:00","summary":"ARIN delegated statistics 2017-04-28 (produced 2017-04-28T05:10:20+00:00), after the report: assigned (dated 1995-09-08)"}]},{"event_id":"5c47f1fc0575152c","registry":"ARIN","report_date":"2016-03-17","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"205.207.133.0/24","start":"205.207.133.0","end":"205.207.133.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Great Lakes Power Limited","recipient_organization":"Great Lakes Power Transmission LP","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:24+00:00","page":"https://rirtracker.com/ip/205.207.133.0-205.207.133.255/#e-5c47f1fc0575152c","report_page":"https://rirtracker.com/arin/reports/2016-03-17/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/205.207.133.0-205.207.133.255.json","observed":"Merger/acquisition: Great Lakes Power Limited (ARIN) to Great Lakes Power Transmission LP (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Great Lakes Power Limited (ARIN) to Great Lakes Power Transmission LP (ARIN) on 2016-03-17 19:50 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 2016-03-17 19:50 UTC, Great Lakes Power Limited (ARIN) to Great Lakes Power Transmission LP (ARIN); resources moved: 205.207.133.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160316.gz","retrieved_at":"2026-10-12T21:07:32+00:00","summary":"ARIN delegated statistics 2016-03-16 (produced 2016-03-16T05:03:58+00:00), before the report: assigned (dated 1995-09-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160318.gz","retrieved_at":"2026-10-12T21:07:43+00:00","summary":"ARIN delegated statistics 2016-03-18 (produced 2016-03-18T05:05:08+00:00), after the report: assigned (dated 1995-09-08)"}]}],"classification_history":{"e29a44bfc673c82e":[{"raw_change_id":191254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:04:37+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. The tracker saw this range removed from registration on 2020-09-07 (205.207.133.0/24), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":191254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:53+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. The tracker saw this range removed from registration on 2020-09-07 (205.207.133.0/24), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":191254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:47+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. The tracker saw this range removed from registration on 2020-09-07 (205.207.133.0/24), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":191254,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:18+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. The tracker saw this range removed from registration on 2020-09-07 (205.207.133.0/24), so it appears to have been issued again from ARIN's pool."}],"ba01224a57eae12f":[{"raw_change_id":191227,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:04:36+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. ARIN removed its own pool record for this range as part of issuing it: the same report adds 205.207.133.0-205.207.133.255. The issuance is explained on that line."},{"raw_change_id":191227,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:53+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. ARIN removed its own pool record for this range as part of issuing it: the same report adds 205.207.133.0-205.207.133.255. The issuance is explained on that line."},{"raw_change_id":191227,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:47+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. ARIN removed its own pool record for this range as part of issuing it: the same report adds 205.207.133.0-205.207.133.255. The issuance is explained on that line."},{"raw_change_id":191227,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:18+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2024-12-25 and allocated (dated 2024-12-26) on 2024-12-27. ARIN removed its own pool record for this range as part of issuing it: the same report adds 205.207.133.0-205.207.133.255. The issuance is explained on that line."}],"488642bfd1af6f66":[{"raw_change_id":401739,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:41:00+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 1995-09-08) on 2020-09-06 and reserved on 2020-09-08. 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 2020-11-06. This does not confirm availability."},{"raw_change_id":401739,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:19:00+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 1995-09-08) on 2020-09-06 and reserved on 2020-09-08. 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 2020-11-06. This does not confirm availability."},{"raw_change_id":401739,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:02:48+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 assigned (dated 1995-09-08) on 2020-09-06 and reserved on 2020-09-08. 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 2020-11-06. This does not confirm availability."},{"raw_change_id":401739,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:07:24+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 1995-09-08) on 2020-09-06 and reserved on 2020-09-08. 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 2020-11-06. This does not confirm availability."}],"f5b9d89951318911":[{"raw_change_id":551882,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:29+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Great Lakes Power Transmission LP (ARIN) to Hydro One Sault Ste. Marie LP (ARIN) on 2017-04-27 16:49 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."}],"5c47f1fc0575152c":[{"raw_change_id":549940,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Great Lakes Power Limited (ARIN) to Great Lakes Power Transmission LP (ARIN) on 2016-03-17 19:50 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."}]},"arin_statistics_now":{"status":"allocated (dated 2024-12-26)"}}