{"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":"200.5.0.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/200.5.0.0-200.5.1.255/","statistics_now":{"registry":"ARIN","status":"reserved"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[{"id":12636,"date":"2018-03-19T19:59:03Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Puerto Rico Medical Services Administration","recipient_org":"PRDoH","range":"200.5.0.0/23","log":"ARIN"}],"events":[{"event_id":"39d5d8a0685fc506","registry":"ARIN","report_date":"2020-09-09","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"200.5.0.0/23","start":"200.5.0.0","end":"200.5.1.255","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/200.5.0.0-200.5.1.255/#e-39d5d8a0685fc506","report_page":"https://rirtracker.com/arin/reports/2020-09-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/200.5.0.0-200.5.1.255.json","observed":"200.5.0.0/23 assigned on 2020-09-09, reserved on 2020-09-10","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":"2020-11-08","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 1995-04-25) on 2020-09-08 and reserved on 2020-09-10. 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 2020-11-08. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200910.gz","retrieved_at":"2026-10-12T22:29:56+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 200.5.0.0/23 assigned on 2020-09-09, reserved on 2020-09-10"},{"type":"delegated_before","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), before the report: assigned (dated 1995-04-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200910.gz","retrieved_at":"2026-10-12T22:29:56+00:00","summary":"ARIN delegated statistics 2020-09-10 (produced 2020-09-10T14:00:13+00:00), after the report: reserved"}]},{"event_id":"47003ac7d5a9447c","registry":"ARIN","report_date":"2018-03-19","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"200.5.0.0/23","start":"200.5.0.0","end":"200.5.1.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Puerto Rico Medical Services Administration","recipient_organization":"PRDoH","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:34+00:00","page":"https://rirtracker.com/ip/200.5.0.0-200.5.1.255/#e-47003ac7d5a9447c","report_page":"https://rirtracker.com/arin/reports/2018-03-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/200.5.0.0-200.5.1.255.json","observed":"Merger/acquisition: Puerto Rico Medical Services Administration (ARIN) to PRDoH (ARIN)","piece_of":{"resource":"200.5.0.0/21","page":"https://rirtracker.com/ip/200.5.0.0-200.5.7.255/"},"explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Puerto Rico Medical Services Administration (ARIN) to PRDoH (ARIN) on 2018-03-19 19:59 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 2018-03-19 19:59 UTC, Puerto Rico Medical Services Administration (ARIN) to PRDoH (ARIN); resources moved: 200.5.0.0/23"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180318.gz","retrieved_at":"2026-10-12T21:43:23+00:00","summary":"ARIN delegated statistics 2018-03-18 (produced 2018-03-18T05:11:58+00:00), before the report: assigned (dated 1995-04-25)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180320.gz","retrieved_at":"2026-10-12T21:43:28+00:00","summary":"ARIN delegated statistics 2018-03-20 (produced 2018-03-20T05:11:35+00:00), after the report: assigned (dated 1995-04-25)"}]}],"classification_history":{"39d5d8a0685fc506":[{"raw_change_id":401782,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:41:02+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 1995-04-25) on 2020-09-08 and reserved on 2020-09-10. 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 2020-11-08. This does not confirm availability."},{"raw_change_id":401782,"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 1995-04-25) on 2020-09-08 and reserved on 2020-09-10. 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 2020-11-08. This does not confirm availability."},{"raw_change_id":401782,"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 1995-04-25) on 2020-09-08 and reserved on 2020-09-10. 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 2020-11-08. This does not confirm availability."},{"raw_change_id":401782,"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 1995-04-25) on 2020-09-08 and reserved on 2020-09-10. 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 2020-11-08. This does not confirm availability."}],"47003ac7d5a9447c":[{"raw_change_id":554250,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:34+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Puerto Rico Medical Services Administration (ARIN) to PRDoH (ARIN) on 2018-03-19 19:59 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":"reserved"}}