{"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":"AS21530","resource_type":"asn","page":"https://rirtracker.com/asn/21530/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2019-02-27)"},"current_holder":{"rir":"ARIN","org":"Fiserv Solutions, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":3574,"date":"2023-09-28T18:01:41Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Fiserv Output Solutions","recipient_org":"Fiserv Solutions, LLC","range":"AS21530","log":"ARIN"}],"events":[{"event_id":"90ca438124fd7dd8","registry":"ARIN","report_date":"2023-09-28","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS21530","start":21530,"end":21530,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Fiserv Output Solutions","recipient_organization":"Fiserv Solutions, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:10+00:00","page":"https://rirtracker.com/asn/21530/#e-90ca438124fd7dd8","report_page":"https://rirtracker.com/arin/reports/2023-09-28/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21530.json","observed":"Merger/acquisition: Fiserv Output Solutions (ARIN) to Fiserv Solutions, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Fiserv Output Solutions (ARIN) to Fiserv Solutions, LLC (ARIN) on 2023-09-28 18:01 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 2023-09-28 18:01 UTC, Fiserv Output Solutions (ARIN) to Fiserv Solutions, LLC (ARIN); resources moved: AS21530"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230927.gz","retrieved_at":"2026-10-12T23:27:46+00:00","summary":"ARIN delegated statistics 2023-09-27 (produced 2023-09-27T13:00:12+00:00), before the report: assigned (dated 2019-02-27)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230929.gz","retrieved_at":"2026-10-12T23:27:51+00:00","summary":"ARIN delegated statistics 2023-09-29 (produced 2023-09-29T13:00:13+00:00), after the report: assigned (dated 2019-02-27)"}]},{"event_id":"977ea3be87d5ec64","registry":"ARIN","report_date":"2019-02-27","source":"arin_issued","raw_action":"ADD","raw_line":"Add AS21530","resource_type":"asn","resource":"AS21530","start":21530,"end":21530,"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":"2026-10-13T23:52:26+00:00","page":"https://rirtracker.com/asn/21530/#e-977ea3be87d5ec64","report_page":"https://rirtracker.com/arin/reports/2019-02-27/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21530.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. The tracker saw this range removed from registration on 2017-10-10 (AS21530), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-February/003731.html","retrieved_at":"2026-10-12T18:40:22+00:00","summary":"ARIN-Issued report for 2019-02-27: \"Add AS21530\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190226.gz","retrieved_at":"2026-10-12T22:00:58+00:00","summary":"ARIN delegated statistics 2019-02-26 (produced 2019-02-26T06:00:16+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190228.gz","retrieved_at":"2026-10-12T22:01:03+00:00","summary":"ARIN delegated statistics 2019-02-28 (produced 2019-02-28T06:00:17+00:00), after the report: assigned (dated 2019-02-27)"}]},{"event_id":"22eeb6f783d323e8","registry":"ARIN","report_date":"2019-02-27","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove AS21530","resource_type":"asn","resource":"AS21530","start":21530,"end":21530,"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":"2026-10-13T23:52:26+00:00","page":"https://rirtracker.com/asn/21530/#e-22eeb6f783d323e8","report_page":"https://rirtracker.com/arin/reports/2019-02-27/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21530.json","explanation":"ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21530. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2019-February/003731.html","retrieved_at":"2026-10-12T18:40:22+00:00","summary":"ARIN-Issued report for 2019-02-27: \"Remove AS21530\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190226.gz","retrieved_at":"2026-10-12T22:00:58+00:00","summary":"ARIN delegated statistics 2019-02-26 (produced 2019-02-26T06:00:16+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190228.gz","retrieved_at":"2026-10-12T22:01:03+00:00","summary":"ARIN delegated statistics 2019-02-28 (produced 2019-02-28T06:00:17+00:00), after the report: assigned (dated 2019-02-27)"}]},{"event_id":"87244272d60eea1e","registry":"ARIN","report_date":"2017-10-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"asn","resource":"AS21530","start":21530,"end":21530,"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/asn/21530/#e-87244272d60eea1e","report_page":"https://rirtracker.com/arin/reports/2017-10-10/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/21530.json","observed":"AS21530 assigned 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_months":6,"estimated_hold_end":"2018-04-10","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 2001-05-18) 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 ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2018-04-10. 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: AS21530 assigned 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: assigned (dated 2001-05-18)"},{"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"}]}],"classification_history":{"90ca438124fd7dd8":[{"raw_change_id":569276,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:10+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Fiserv Output Solutions (ARIN) to Fiserv Solutions, LLC (ARIN) on 2023-09-28 18:01 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."}],"977ea3be87d5ec64":[{"raw_change_id":158812,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:43:44+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. The tracker saw this range removed from registration on 2017-10-10 (AS21530), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":158812,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:30+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. The tracker saw this range removed from registration on 2017-10-10 (AS21530), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":158812,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:13+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. The tracker saw this range removed from registration on 2017-10-10 (AS21530), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":158812,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:26+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. The tracker saw this range removed from registration on 2017-10-10 (AS21530), so it appears to have been issued again from ARIN's pool."}],"22eeb6f783d323e8":[{"raw_change_id":158810,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:43:44+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21530. The issuance is explained on that line."},{"raw_change_id":158810,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:30+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21530. The issuance is explained on that line."},{"raw_change_id":158810,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:13+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21530. The issuance is explained on that line."},{"raw_change_id":158810,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:26+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2019-02-26 and assigned (dated 2019-02-27) on 2019-02-28. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS21530. The issuance is explained on that line."}],"87244272d60eea1e":[{"raw_change_id":341783,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:15:34+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 assigned (dated 2001-05-18) 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 ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2018-04-10. This does not confirm availability."},{"raw_change_id":341783,"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 assigned (dated 2001-05-18) 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 ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2018-04-10. This does not confirm availability."},{"raw_change_id":341783,"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 assigned (dated 2001-05-18) 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 ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2018-04-10. This does not confirm availability."},{"raw_change_id":341783,"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 assigned (dated 2001-05-18) 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 ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2018-04-10. This does not confirm availability."}]},"arin_statistics_now":{"status":"assigned (dated 2019-02-27)"}}