{"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":"66.181.160.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/66.181.160.0-66.181.191.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2009-04-09)"},"current_holder":{"rir":"APNIC","org":"Univision LLC","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":7337,"date":"2016-07-12T15:23:13Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Bradley Crossing, LLC.","recipient_org":"Univision LLC","range":"66.181.160.0/19","log":"ARIN"},{"id":124624,"date":"2016-07-11T22:14:09Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"BARDL","recipient_org":"MCS Com Co Ltd","range":"66.181.160.0/19","log":"APNIC"}],"events":[{"event_id":"f76ef7986e1d2aad","registry":"ARIN","report_date":"2016-07-12","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"66.181.160.0/19","start":"66.181.160.0","end":"66.181.191.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Bradley Crossing, LLC.","recipient_organization":"Univision LLC","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:02:09+00:00","page":"https://rirtracker.com/ip/66.181.160.0-66.181.191.255/#e-f76ef7986e1d2aad","report_page":"https://rirtracker.com/arin/reports/2016-07-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.181.160.0-66.181.191.255.json","observed":"66.181.160.0/19 allocated on 2016-07-12, not listed on 2016-07-13","same_transfer_as":"a292283c19888910","explanation":"ARIN's transfer log records a transfer from Bradley Crossing, LLC. (ARIN) to Univision LLC (APNIC) on 2016-07-12 15:23 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160713.gz","retrieved_at":"2026-10-12T21:13:14+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 66.181.160.0/19 allocated on 2016-07-12, not listed on 2016-07-13"},{"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 2016-07-12 15:23 UTC, Bradley Crossing, LLC. (ARIN) to Univision LLC (APNIC); resources moved: 66.181.160.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160711.gz","retrieved_at":"2026-10-12T21:13:09+00:00","summary":"ARIN delegated statistics 2016-07-11 (produced 2016-07-11T05:04:12+00:00), before the report: allocated (dated 2009-04-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160713.gz","retrieved_at":"2026-10-12T21:13:14+00:00","summary":"ARIN delegated statistics 2016-07-13 (produced 2016-07-13T05:05:06+00:00), after the report: not listed"}]},{"event_id":"a292283c19888910","registry":"APNIC","report_date":"2016-07-12","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"66.181.160.0/19","start":"66.181.160.0","end":"66.181.191.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"BARDL","recipient_organization":"MCS Com Co Ltd","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:32+00:00","page":"https://rirtracker.com/ip/66.181.160.0-66.181.191.255/#e-a292283c19888910","report_page":"https://rirtracker.com/apnic/reports/2016-07-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.181.160.0-66.181.191.255.json","observed":"Transfer: BARDL (ARIN) to MCS Com Co Ltd (APNIC)","same_transfer_as":"f76ef7986e1d2aad","explanation":"APNIC's transfer log records a transfer from BARDL (ARIN) to MCS Com Co Ltd (APNIC) on 2016-07-11 22:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"transfer","url":"https://ftp.apnic.net/stats/apnic/transfers/transfers_latest.json","retrieved_at":"2026-10-13T18:17:16+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2016-07-11 22:14 UTC, BARDL (ARIN) to MCS Com Co Ltd (APNIC); resources moved: 66.181.160.0/19"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160712.gz","retrieved_at":"2026-10-12T21:43:11+00:00","summary":"APNIC delegated statistics 2016-07-12, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160713.gz","retrieved_at":"2026-10-12T21:43:21+00:00","summary":"APNIC delegated statistics 2016-07-13, after the change: allocated (dated 2009-04-09)"}]},{"event_id":"fa7fda09b3182a50","registry":"ARIN","report_date":"2009-04-09","source":"arin_issued","raw_action":"ADD","raw_line":"Add 66.181.160.0-66.181.191.255","resource_type":"ipv4","resource":"66.181.160.0/19","start":"66.181.160.0","end":"66.181.191.255","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":"2026-10-13T23:50:45+00:00","page":"https://rirtracker.com/ip/66.181.160.0-66.181.191.255/#e-fa7fda09b3182a50","report_page":"https://rirtracker.com/arin/reports/2009-04-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.181.160.0-66.181.191.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-04-08 and allocated (dated 2009-04-09) on 2009-04-10. (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-April/000111.html","retrieved_at":"2026-10-12T18:36:13+00:00","summary":"ARIN-Issued report for 2009-04-09: \"Add 66.181.160.0-66.181.191.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090408.gz","retrieved_at":"2026-10-12T18:48:39+00:00","summary":"ARIN delegated statistics 2009-04-08, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090410.gz","retrieved_at":"2026-10-12T18:48:47+00:00","summary":"ARIN delegated statistics 2009-04-10, after the report: allocated (dated 2009-04-09)"}]},{"event_id":"bfa24e8881b2314e","registry":"ARIN","report_date":"2009-03-19","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 66.181.160.0-66.181.191.255","resource_type":"ipv4","resource":"66.181.160.0/19","start":"66.181.160.0","end":"66.181.191.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:44+00:00","page":"https://rirtracker.com/ip/66.181.160.0-66.181.191.255/#e-bfa24e8881b2314e","report_page":"https://rirtracker.com/arin/reports/2009-03-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/66.181.160.0-66.181.191.255.json","explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2009-03-18 and not issued on 2009-03-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2009-March/000090.html","retrieved_at":"2026-10-12T18:36:11+00:00","summary":"ARIN-Issued report for 2009-03-19: \"Remove 66.181.160.0-66.181.191.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090318.gz","retrieved_at":"2026-10-12T18:47:49+00:00","summary":"ARIN delegated statistics 2009-03-18, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090320.gz","retrieved_at":"2026-10-12T18:47:53+00:00","summary":"ARIN delegated statistics 2009-03-20, after the report: not issued"}]}],"classification_history":{"f76ef7986e1d2aad":[{"raw_change_id":320504,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:05:05+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Bradley Crossing, LLC. (ARIN) to Univision LLC (APNIC) on 2016-07-12 15:23 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":320504,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:14:38+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Bradley Crossing, LLC. (ARIN) to Univision LLC (APNIC) on 2016-07-12 15:23 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":320504,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:58:06+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Bradley Crossing, LLC. (ARIN) to Univision LLC (APNIC) on 2016-07-12 15:23 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":320504,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:02:09+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Bradley Crossing, LLC. (ARIN) to Univision LLC (APNIC) on 2016-07-12 15:23 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}],"a292283c19888910":[{"raw_change_id":33769,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:06+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BARDL (ARIN) to MCS Com Co Ltd (APNIC) on 2016-07-11 22:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":33769,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:49+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BARDL (ARIN) to MCS Com Co Ltd (APNIC) on 2016-07-11 22:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":33769,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:58+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BARDL (ARIN) to MCS Com Co Ltd (APNIC) on 2016-07-11 22:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":33769,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:32+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from BARDL (ARIN) to MCS Com Co Ltd (APNIC) on 2016-07-11 22:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"fa7fda09b3182a50":[{"raw_change_id":119431,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:11:15+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-04-08 and allocated (dated 2009-04-09) on 2009-04-10. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2009-03-19 (66.181.160.0-66.181.191.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":119431,"classification_code":"APPARENT_REISSUANCE","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 2009-04-08 and allocated (dated 2009-04-09) on 2009-04-10. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2009-03-19 (66.181.160.0-66.181.191.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":119431,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:47+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-04-08 and allocated (dated 2009-04-09) on 2009-04-10. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2009-03-19 (66.181.160.0-66.181.191.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":119431,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:45+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2009-04-08 and allocated (dated 2009-04-09) on 2009-04-10. (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."}],"bfa24e8881b2314e":[{"raw_change_id":119309,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:11:11+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2009-03-18 and not issued on 2009-03-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":119309,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:14+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2009-03-18 and not issued on 2009-03-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":119309,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:47+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2009-03-18 and not issued on 2009-03-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":119309,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:44+00:00","current":1,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2009-03-18 and not issued on 2009-03-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."}]},"arin_statistics_now":{"status":"not listed"}}