{"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":"204.15.171.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/204.15.171.0-204.15.171.255/","statistics_now":{"registry":"APNIC","status":"assigned (dated 2011-08-23)"},"current_holder":{"rir":"APNIC","org":"Bullhorn Inc","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":41196,"date":"2025-09-02T12:45:21Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Bullhorn Inc.","recipient_org":"Bullhorn Inc","range":"204.15.171.0/24","log":"ARIN"},{"id":131231,"date":"2025-09-02T09:03:23Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"BULLH-1","recipient_org":"Bullhorn International Inc.","range":"204.15.171.0/24","log":"APNIC"}],"events":[{"event_id":"73d30e55d432b9b7","registry":"ARIN","report_date":"2025-09-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"204.15.171.0/24","start":"204.15.171.0","end":"204.15.171.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Bullhorn Inc.","recipient_organization":"Bullhorn Inc","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":"2026-10-14T00:19:23+00:00","page":"https://rirtracker.com/ip/204.15.171.0-204.15.171.255/#e-73d30e55d432b9b7","report_page":"https://rirtracker.com/arin/reports/2025-09-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.15.171.0-204.15.171.255.json","observed":"Transfer: Bullhorn Inc. (ARIN) to Bullhorn Inc (APNIC)","piece_of":{"resource":"204.15.170.0/23","page":"https://rirtracker.com/ip/204.15.170.0-204.15.171.255/"},"same_transfer_as":"b95d64263246753b","explanation":"ARIN's transfer log records a transfer from Bullhorn Inc. (ARIN) to Bullhorn Inc (APNIC) on 2025-09-02 12:45 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants.","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: RESOURCE_TRANSFER on 2025-09-02 12:45 UTC, Bullhorn Inc. (ARIN) to Bullhorn Inc (APNIC); resources moved: 204.15.171.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250901.gz","retrieved_at":"2026-10-13T00:05:58+00:00","summary":"ARIN delegated statistics 2025-09-01 (produced 2025-09-01T13:00:50+00:00), before the report: allocated (dated 2011-08-23)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250903.gz","retrieved_at":"2026-10-13T00:06:03+00:00","summary":"ARIN delegated statistics 2025-09-03 (produced 2025-09-03T13:00:51+00:00), after the report: not listed"}]},{"event_id":"b95d64263246753b","registry":"APNIC","report_date":"2025-09-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"204.15.171.0/24","start":"204.15.171.0","end":"204.15.171.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"BULLH-1","recipient_organization":"Bullhorn International Inc.","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:58+00:00","page":"https://rirtracker.com/ip/204.15.171.0-204.15.171.255/#e-b95d64263246753b","report_page":"https://rirtracker.com/apnic/reports/2025-09-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.15.171.0-204.15.171.255.json","observed":"Transfer: BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC)","same_transfer_as":"73d30e55d432b9b7","explanation":"APNIC's transfer log records a transfer from BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC) on 2025-09-02 09:03 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 2025-09-02 09:03 UTC, BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC); resources moved: 204.15.171.0/24"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250902.gz","retrieved_at":"2026-10-13T01:45:20+00:00","summary":"APNIC delegated statistics 2025-09-02, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250903.gz","retrieved_at":"2026-10-13T01:45:23+00:00","summary":"APNIC delegated statistics 2025-09-03, after the change: assigned (dated 2011-08-23)"}]}],"classification_history":{"73d30e55d432b9b7":[{"raw_change_id":574214,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:23+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Bullhorn Inc. (ARIN) to Bullhorn Inc (APNIC) on 2025-09-02 12:45 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants."}],"b95d64263246753b":[{"raw_change_id":44307,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:39:31+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC) on 2025-09-02 09:03 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":44307,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:09+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC) on 2025-09-02 09:03 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":44307,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:21+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC) on 2025-09-02 09:03 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":44307,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:58+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from BULLH-1 (ARIN) to Bullhorn International Inc. (APNIC) on 2025-09-02 09:03 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}