{"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":"199.191.104.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.191.104.0-199.191.111.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2009-03-18)"},"current_holder":{"rir":"ARIN","org":"Block Line Systems, LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":9470,"date":"2017-05-08T19:16:51Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Infinite Communication, LLC","recipient_org":"Block Line Systems, LLC","range":"199.191.104.0/21","log":"ARIN"}],"events":[{"event_id":"b308058056fc1458","registry":"ARIN","report_date":"2017-05-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"199.191.104.0/21","start":"199.191.104.0","end":"199.191.111.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Infinite Communication, LLC","recipient_organization":"Block Line Systems, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:29+00:00","page":"https://rirtracker.com/ip/199.191.104.0-199.191.111.255/#e-b308058056fc1458","report_page":"https://rirtracker.com/arin/reports/2017-05-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.191.104.0-199.191.111.255.json","observed":"Merger/acquisition: Infinite Communication, LLC (ARIN) to Block Line Systems, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Infinite Communication, LLC (ARIN) to Block Line Systems, LLC (ARIN) on 2017-05-08 19:16 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 2017-05-08 19:16 UTC, Infinite Communication, LLC (ARIN) to Block Line Systems, LLC (ARIN); resources moved: 199.191.104.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170507.gz","retrieved_at":"2026-10-12T21:27:43+00:00","summary":"ARIN delegated statistics 2017-05-07 (produced 2017-05-07T05:09:20+00:00), before the report: allocated (dated 2009-03-18)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170509.gz","retrieved_at":"2026-10-12T21:27:48+00:00","summary":"ARIN delegated statistics 2017-05-09 (produced 2017-05-09T05:09:21+00:00), after the report: allocated (dated 2009-03-18)"}]},{"event_id":"01fe513695e5f5b1","registry":"ARIN","report_date":"2009-03-18","source":"arin_issued","raw_action":"ADD","raw_line":"Add 199.191.104.0-199.191.111.255","resource_type":"ipv4","resource":"199.191.104.0/21","start":"199.191.104.0","end":"199.191.111.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","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":"2026-10-13T23:50:44+00:00","page":"https://rirtracker.com/ip/199.191.104.0-199.191.111.255/#e-01fe513695e5f5b1","report_page":"https://rirtracker.com/arin/reports/2009-03-18/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.191.104.0-199.191.111.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-03-17 and allocated (dated 2009-03-18) on 2009-03-19. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2009-March/000089.html","retrieved_at":"2026-10-12T18:36:11+00:00","summary":"ARIN-Issued report for 2009-03-18: \"Add 199.191.104.0-199.191.111.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090317.gz","retrieved_at":"2026-10-12T18:47:47+00:00","summary":"ARIN delegated statistics 2009-03-17, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090319.gz","retrieved_at":"2026-10-12T18:47:51+00:00","summary":"ARIN delegated statistics 2009-03-19, after the report: allocated (dated 2009-03-18)"}]}],"classification_history":{"b308058056fc1458":[{"raw_change_id":551924,"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 Infinite Communication, LLC (ARIN) to Block Line Systems, LLC (ARIN) on 2017-05-08 19:16 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."}],"01fe513695e5f5b1":[{"raw_change_id":119284,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:11:10+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-03-17 and allocated (dated 2009-03-18) on 2009-03-19. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":119284,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:14+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-03-17 and allocated (dated 2009-03-18) on 2009-03-19. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":119284,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:46+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-03-17 and allocated (dated 2009-03-18) on 2009-03-19. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":119284,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:44+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-03-17 and allocated (dated 2009-03-18) on 2009-03-19. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2009-03-18)"}}