{"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":"199.43.20.0 - 199.43.44.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.43.20.0-199.43.44.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 1994-02-02)"},"current_holder":{"rir":"ARIN","org":null,"how":"ARIN's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"6d3251e0a15dbb96","registry":"ARIN","report_date":"2012-12-20","source":"arin_issued","raw_action":"ADD","raw_line":"Add 199.43.20.0-199.43.44.255","resource_type":"ipv4","resource":"199.43.20.0 - 199.43.44.255","start":"199.43.20.0","end":"199.43.44.255","classification":"RANGE_REPRESENTATION_CHANGE","classification_label":"Range split/merge or reporting-format change","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":"2026-10-13T23:51:02+00:00","page":"https://rirtracker.com/ip/199.43.20.0-199.43.44.255/#e-6d3251e0a15dbb96","report_page":"https://rirtracker.com/arin/reports/2012-12-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.43.20.0-199.43.44.255.json","explanation":"This range is part of a larger block from which a piece was transferred around 2012-12-20; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1994-02-02) on 2012-12-19 and assigned (dated 2012-12-20) on 2012-12-21. (Until 2013-03-05, ARIN's statistics list only what's issued.)","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-December/001470.html","retrieved_at":"2026-10-12T18:37:46+00:00","summary":"ARIN-Issued report for 2012-12-20: \"Add 199.43.20.0-199.43.44.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20121219.gz","retrieved_at":"2026-10-12T19:52:27+00:00","summary":"ARIN delegated statistics 2012-12-19, before the report: assigned (dated 1994-02-02)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20121221.gz","retrieved_at":"2026-10-12T19:52:31+00:00","summary":"ARIN delegated statistics 2012-12-21, after the report: assigned (dated 2012-12-20)"},{"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: RESOURCE_TRANSFER on 2012-12-20 23:02 UTC, Bank of America (ARIN) to (no name) (APNIC); resources moved: 199.43.45.0/24"},{"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: RESOURCE_TRANSFER on 2012-12-20 23:02 UTC, Bank of America (ARIN) to (no name) (APNIC); resources moved: 199.43.63.0/24"}]}],"classification_history":{"6d3251e0a15dbb96":[{"raw_change_id":127709,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:19:13+00:00","current":0,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2012-12-20; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1994-02-02) on 2012-12-19 and assigned (dated 2012-12-20) on 2012-12-21. (Until 2013-03-05, ARIN's statistics list only what's issued.)"},{"raw_change_id":127709,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:26+00:00","current":0,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2012-12-20; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1994-02-02) on 2012-12-19 and assigned (dated 2012-12-20) on 2012-12-21. (Until 2013-03-05, ARIN's statistics list only what's issued.)"},{"raw_change_id":127709,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:01+00:00","current":0,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2012-12-20; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1994-02-02) on 2012-12-19 and assigned (dated 2012-12-20) on 2012-12-21. (Until 2013-03-05, ARIN's statistics list only what's issued.)"},{"raw_change_id":127709,"classification_code":"RANGE_REPRESENTATION_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:02+00:00","current":1,"public_explanation":"This range is part of a larger block from which a piece was transferred around 2012-12-20; the rest was re-registered to show the split. ARIN's statistics show it assigned (dated 1994-02-02) on 2012-12-19 and assigned (dated 2012-12-20) on 2012-12-21. (Until 2013-03-05, ARIN's statistics list only what's issued.)"}]},"arin_statistics_now":{"status":"allocated (dated 1994-02-02)"}}