{"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":"137.220.128.0/17","resource_type":"ipv4","page":"https://rirtracker.com/ip/137.220.128.0-137.220.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1990-01-10)"},"current_holder":{"rir":"APNIC","org":"RackIP Consultancy Pte Ltd","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":18119,"date":"2019-06-05T11:07:49Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Birmingham-Southern College","recipient_org":"RackIP Consultancy Pte Ltd","range":"137.220.128.0/17","log":"ARIN"},{"id":126156,"date":"2019-06-05T06:51:21Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"BIRMIN","recipient_org":"RACKIP CONSULTANCY PTE. LTD.","range":"137.220.128.0/17","log":"APNIC"}],"events":[{"event_id":"87fba023bec9e6d2","registry":"ARIN","report_date":"2019-06-05","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"137.220.128.0/17","start":"137.220.128.0","end":"137.220.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Birmingham-Southern College","recipient_organization":"RackIP Consultancy Pte Ltd","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":"2026-10-14T00:18:45+00:00","page":"https://rirtracker.com/ip/137.220.128.0-137.220.255.255/#e-87fba023bec9e6d2","report_page":"https://rirtracker.com/arin/reports/2019-06-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/137.220.128.0-137.220.255.255.json","observed":"Transfer: Birmingham-Southern College (ARIN) to RackIP Consultancy Pte Ltd (APNIC)","piece_of":{"resource":"137.220.0.0/16","page":"https://rirtracker.com/ip/137.220.0.0-137.220.255.255/"},"same_transfer_as":"e0f0e8d1da08826e","explanation":"ARIN's transfer log records a transfer from Birmingham-Southern College (ARIN) to RackIP Consultancy Pte Ltd (APNIC) on 2019-06-05 11:07 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 2019-06-05 11:07 UTC, Birmingham-Southern College (ARIN) to RackIP Consultancy Pte Ltd (APNIC); resources moved: 137.220.128.0/17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190604.gz","retrieved_at":"2026-10-12T22:06:02+00:00","summary":"ARIN delegated statistics 2019-06-04 (produced 2019-06-04T05:00:16+00:00), before the report: assigned (dated 1990-01-10)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190606.gz","retrieved_at":"2026-10-12T22:06:08+00:00","summary":"ARIN delegated statistics 2019-06-06 (produced 2019-06-06T14:00:16+00:00), after the report: not listed"}]},{"event_id":"e0f0e8d1da08826e","registry":"APNIC","report_date":"2019-06-05","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"137.220.128.0/17","start":"137.220.128.0","end":"137.220.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"BIRMIN","recipient_organization":"RACKIP CONSULTANCY PTE. 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":"2026-10-13T23:46:38+00:00","page":"https://rirtracker.com/ip/137.220.128.0-137.220.255.255/#e-e0f0e8d1da08826e","report_page":"https://rirtracker.com/apnic/reports/2019-06-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/137.220.128.0-137.220.255.255.json","observed":"Transfer: BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC)","same_transfer_as":"87fba023bec9e6d2","explanation":"APNIC's transfer log records a transfer from BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC) on 2019-06-05 06:51 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 2019-06-05 06:51 UTC, BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC); resources moved: 137.220.128.0/17"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20190605.gz","retrieved_at":"2026-10-12T22:54:04+00:00","summary":"APNIC delegated statistics 2019-06-05, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20190606.gz","retrieved_at":"2026-10-12T22:54:08+00:00","summary":"APNIC delegated statistics 2019-06-06, after the change: allocated (dated 1990-01-10)"}]}],"classification_history":{"87fba023bec9e6d2":[{"raw_change_id":558838,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:45+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Birmingham-Southern College (ARIN) to RackIP Consultancy Pte Ltd (APNIC) on 2019-06-05 11:07 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants."}],"e0f0e8d1da08826e":[{"raw_change_id":35864,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:59+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC) on 2019-06-05 06:51 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35864,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:53+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC) on 2019-06-05 06:51 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35864,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:03+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC) on 2019-06-05 06:51 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35864,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:38+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from BIRMIN (ARIN) to RACKIP CONSULTANCY PTE. LTD. (APNIC) on 2019-06-05 06:51 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"}}