{"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":"AS18512","resource_type":"asn","page":"https://rirtracker.com/asn/18512/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2021-03-08)"},"current_holder":{"rir":"ARIN","org":"Yankee Book Peddler","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":581,"date":"2017-05-02T20:04:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"YBP","recipient_org":"Yankee Book Peddler","range":"AS18512","log":"ARIN"}],"events":[{"event_id":"3cfabfb57c496cdc","registry":"ARIN","report_date":"2021-03-08","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS18512","resource_type":"asn","resource":"AS18512","start":18512,"end":18512,"classification":"RESTORED","classification_label":"Restored to the same holder","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:05+00:00","page":"https://rirtracker.com/asn/18512/#e-3cfabfb57c496cdc","report_page":"https://rirtracker.com/arin/reports/2021-03-08/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/18512.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. The tracker saw it removed from registration on 2020-02-03 (399 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2021-March/004469.html","retrieved_at":"2026-10-12T18:41:15+00:00","summary":"ARIN-Issued report for 2021-03-08: \"Add AS18512\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210307.gz","retrieved_at":"2026-10-12T22:39:15+00:00","summary":"ARIN delegated statistics 2021-03-07 (produced 2021-03-07T15:00:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210309.gz","retrieved_at":"2026-10-12T22:39:20+00:00","summary":"ARIN delegated statistics 2021-03-09 (produced 2021-03-09T15:00:12+00:00), after the report: assigned (dated 2021-03-08)"}]},{"event_id":"ebad2db9c06151bf","registry":"ARIN","report_date":"2021-03-08","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS18512","resource_type":"asn","resource":"AS18512","start":18512,"end":18512,"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":"2026-10-13T23:53:05+00:00","page":"https://rirtracker.com/asn/18512/#e-ebad2db9c06151bf","report_page":"https://rirtracker.com/arin/reports/2021-03-08/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/18512.json","explanation":"ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS18512. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2021-March/004469.html","retrieved_at":"2026-10-12T18:41:15+00:00","summary":"ARIN-Issued report for 2021-03-08: \"Remove AS18512\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210307.gz","retrieved_at":"2026-10-12T22:39:15+00:00","summary":"ARIN delegated statistics 2021-03-07 (produced 2021-03-07T15:00:12+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210309.gz","retrieved_at":"2026-10-12T22:39:20+00:00","summary":"ARIN delegated statistics 2021-03-09 (produced 2021-03-09T15:00:12+00:00), after the report: assigned (dated 2021-03-08)"}]},{"event_id":"cd8092a1362d1656","registry":"ARIN","report_date":"2020-02-03","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS18512","start":18512,"end":18512,"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":"2026-10-14T00:06:31+00:00","page":"https://rirtracker.com/asn/18512/#e-cd8092a1362d1656","report_page":"https://rirtracker.com/arin/reports/2020-02-03/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/18512.json","observed":"AS18512 assigned on 2020-02-03, reserved on 2020-02-04","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_months":6,"estimated_hold_end":"2020-08-03","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 2014-09-17) on 2020-02-02 and reserved on 2020-02-04. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2020-08-03. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200204.gz","retrieved_at":"2026-10-12T22:18:39+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS18512 assigned on 2020-02-03, reserved on 2020-02-04"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200202.gz","retrieved_at":"2026-10-12T22:18:34+00:00","summary":"ARIN delegated statistics 2020-02-02 (produced 2020-02-02T15:00:14+00:00), before the report: assigned (dated 2014-09-17)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200204.gz","retrieved_at":"2026-10-12T22:18:39+00:00","summary":"ARIN delegated statistics 2020-02-04 (produced 2020-02-04T15:00:13+00:00), after the report: reserved"}]},{"event_id":"477cd9dd851a9628","registry":"ARIN","report_date":"2017-05-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS18512","start":18512,"end":18512,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"YBP","recipient_organization":"Yankee Book Peddler","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/asn/18512/#e-477cd9dd851a9628","report_page":"https://rirtracker.com/arin/reports/2017-05-02/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/18512.json","observed":"Merger/acquisition: YBP (ARIN) to Yankee Book Peddler (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from YBP (ARIN) to Yankee Book Peddler (ARIN) on 2017-05-02 20:04 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 2017-05-02 20:04 UTC, YBP (ARIN) to Yankee Book Peddler (ARIN); resources moved: AS18512"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170501.gz","retrieved_at":"2026-10-12T21:27:29+00:00","summary":"ARIN delegated statistics 2017-05-01 (produced 2017-05-01T05:09:19+00:00), before the report: assigned (dated 2014-09-17)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170503.gz","retrieved_at":"2026-10-12T21:27:33+00:00","summary":"ARIN delegated statistics 2017-05-03 (produced 2017-05-03T05:08:57+00:00), after the report: assigned (dated 2014-09-17)"}]},{"event_id":"61a2cbbbab81813c","registry":"ARIN","report_date":"2014-07-17","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS18512","start":18512,"end":18512,"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":"2026-10-13T23:59:55+00:00","page":"https://rirtracker.com/asn/18512/#e-61a2cbbbab81813c","report_page":"https://rirtracker.com/arin/reports/2014-07-17/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/18512.json","observed":"AS18512 assigned on 2014-07-17, reserved on 2014-07-18","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_months":6,"estimated_hold_end":"2015-01-17","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 2000-09-06) on 2014-07-16 and reserved on 2014-07-18. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2015-01-17. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140718.gz","retrieved_at":"2026-10-12T20:38:11+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS18512 assigned on 2014-07-17, reserved on 2014-07-18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140716.gz","retrieved_at":"2026-10-12T20:38:06+00:00","summary":"ARIN delegated statistics 2014-07-16 (produced 2014-07-16T05:03:31+00:00), before the report: assigned (dated 2000-09-06)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140718.gz","retrieved_at":"2026-10-12T20:38:11+00:00","summary":"ARIN delegated statistics 2014-07-18 (produced 2014-07-18T05:03:41+00:00), after the report: reserved"}]}],"classification_history":{"3cfabfb57c496cdc":[{"raw_change_id":170176,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:51:33+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. The tracker saw it removed from registration on 2020-02-03 (399 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":170176,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:59+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. The tracker saw it removed from registration on 2020-02-03 (399 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":170176,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:46+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. The tracker saw it removed from registration on 2020-02-03 (399 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":170176,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:05+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. The tracker saw it removed from registration on 2020-02-03 (399 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."}],"ebad2db9c06151bf":[{"raw_change_id":170174,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:51:33+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS18512. The issuance is explained on that line."},{"raw_change_id":170174,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:59+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS18512. The issuance is explained on that line."},{"raw_change_id":170174,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:46+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS18512. The issuance is explained on that line."},{"raw_change_id":170174,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:05+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2021-03-07 and assigned (dated 2021-03-08) on 2021-03-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS18512. The issuance is explained on that line."}],"cd8092a1362d1656":[{"raw_change_id":388735,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:34:31+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 2014-09-17) on 2020-02-02 and reserved on 2020-02-04. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2020-08-03. This does not confirm availability."},{"raw_change_id":388735,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:18:17+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 2014-09-17) on 2020-02-02 and reserved on 2020-02-04. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2020-08-03. This does not confirm availability."},{"raw_change_id":388735,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:02:02+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 2014-09-17) on 2020-02-02 and reserved on 2020-02-04. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2020-08-03. This does not confirm availability."},{"raw_change_id":388735,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:06:31+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 assigned (dated 2014-09-17) on 2020-02-02 and reserved on 2020-02-04. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2020-08-03. This does not confirm availability."}],"477cd9dd851a9628":[{"raw_change_id":551888,"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 YBP (ARIN) to Yankee Book Peddler (ARIN) on 2017-05-02 20:04 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."}],"61a2cbbbab81813c":[{"raw_change_id":287127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:50:14+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 assigned (dated 2000-09-06) on 2014-07-16 and reserved on 2014-07-18. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2015-01-17. This does not confirm availability."},{"raw_change_id":287127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:12:44+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 2000-09-06) on 2014-07-16 and reserved on 2014-07-18. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2015-01-17. This does not confirm availability."},{"raw_change_id":287127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:56:03+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 2000-09-06) on 2014-07-16 and reserved on 2014-07-18. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2015-01-17. This does not confirm availability."},{"raw_change_id":287127,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:59:55+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 2000-09-06) on 2014-07-16 and reserved on 2014-07-18. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2015-01-17. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2021-03-08)"}}