{"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":"152.136.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/152.136.0.0-152.136.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1991-08-20)"},"current_holder":{"rir":"APNIC","org":"Oriental Power Holdings, Limited","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":11769,"date":"2018-01-03T16:33:56Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Computer Sciences Corporation","recipient_org":"Oriental Power Holdings, Limited","range":"152.136.0.0/16","log":"ARIN"},{"id":125633,"date":"2018-01-03T06:39:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"CSC-11-Z","recipient_org":"Tencent Cloud Computing (Beijing) Co., Ltd","range":"152.136.0.0/16","log":"APNIC"},{"id":11327,"date":"2017-11-09T21:32:48Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Nichols Research Corporation","recipient_org":"Computer Sciences Corporation","range":"152.136.0.0/16","log":"ARIN"}],"events":[{"event_id":"9c77b8f05cd0def2","registry":"ARIN","report_date":"2018-01-03","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"152.136.0.0/16","start":"152.136.0.0","end":"152.136.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Computer Sciences Corporation","recipient_organization":"Oriental Power Holdings, Limited","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":"2026-10-14T00:03:47+00:00","page":"https://rirtracker.com/ip/152.136.0.0-152.136.255.255/#e-9c77b8f05cd0def2","report_page":"https://rirtracker.com/arin/reports/2018-01-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/152.136.0.0-152.136.255.255.json","observed":"152.136.0.0/16 assigned on 2018-01-03, not listed on 2018-01-04","same_transfer_as":"1dd96cd92cad8e52","explanation":"ARIN's transfer log records a transfer from Computer Sciences Corporation (ARIN) to Oriental Power Holdings, Limited (APNIC) on 2018-01-03 16:33 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/2018/delegated-arin-extended-20180104.gz","retrieved_at":"2026-10-12T21:39:44+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 152.136.0.0/16 assigned on 2018-01-03, not listed on 2018-01-04"},{"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 2018-01-03 16:33 UTC, Computer Sciences Corporation (ARIN) to Oriental Power Holdings, Limited (APNIC); resources moved: 152.136.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180102.gz","retrieved_at":"2026-10-12T21:39:39+00:00","summary":"ARIN delegated statistics 2018-01-02 (produced 2018-01-02T06:09:50+00:00), before the report: assigned (dated 1991-08-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180104.gz","retrieved_at":"2026-10-12T21:39:44+00:00","summary":"ARIN delegated statistics 2018-01-04 (produced 2018-01-04T06:08:47+00:00), after the report: not listed"}]},{"event_id":"1dd96cd92cad8e52","registry":"APNIC","report_date":"2018-01-03","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"152.136.0.0/16","start":"152.136.0.0","end":"152.136.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"CSC-11-Z","recipient_organization":"Tencent Cloud Computing (Beijing) 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":"2026-10-13T23:46:36+00:00","page":"https://rirtracker.com/ip/152.136.0.0-152.136.255.255/#e-1dd96cd92cad8e52","report_page":"https://rirtracker.com/apnic/reports/2018-01-03/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/152.136.0.0-152.136.255.255.json","observed":"Transfer: CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC)","same_transfer_as":"9c77b8f05cd0def2","explanation":"APNIC's transfer log records a transfer from CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2018-01-03 06:39 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 2018-01-03 06:39 UTC, CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC); resources moved: 152.136.0.0/16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2018/delegated-apnic-extended-20180103.gz","retrieved_at":"2026-10-12T22:19:24+00:00","summary":"APNIC delegated statistics 2018-01-03, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2018/delegated-apnic-extended-20180104.gz","retrieved_at":"2026-10-12T22:19:28+00:00","summary":"APNIC delegated statistics 2018-01-04, after the change: allocated (dated 1991-08-20)"}]},{"event_id":"6db58520bb9cc643","registry":"ARIN","report_date":"2017-11-09","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"152.136.0.0/16","start":"152.136.0.0","end":"152.136.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Nichols Research Corporation","recipient_organization":"Computer Sciences Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","page":"https://rirtracker.com/ip/152.136.0.0-152.136.255.255/#e-6db58520bb9cc643","report_page":"https://rirtracker.com/arin/reports/2017-11-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/152.136.0.0-152.136.255.255.json","observed":"Merger/acquisition: Nichols Research Corporation (ARIN) to Computer Sciences Corporation (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Nichols Research Corporation (ARIN) to Computer Sciences Corporation (ARIN) on 2017-11-09 21:32 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 2017-11-09 21:32 UTC, Nichols Research Corporation (ARIN) to Computer Sciences Corporation (ARIN); resources moved: 152.136.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171108.gz","retrieved_at":"2026-10-12T21:36:59+00:00","summary":"ARIN delegated statistics 2017-11-08 (produced 2017-11-08T06:10:49+00:00), before the report: assigned (dated 1991-08-20)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171110.gz","retrieved_at":"2026-10-12T21:37:12+00:00","summary":"ARIN delegated statistics 2017-11-10 (produced 2017-11-10T06:10:52+00:00), after the report: assigned (dated 1991-08-20)"}]}],"classification_history":{"9c77b8f05cd0def2":[{"raw_change_id":346265,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:17:49+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Computer Sciences Corporation (ARIN) to Oriental Power Holdings, Limited (APNIC) on 2018-01-03 16:33 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":346265,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:02+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Computer Sciences Corporation (ARIN) to Oriental Power Holdings, Limited (APNIC) on 2018-01-03 16:33 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":346265,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:36+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Computer Sciences Corporation (ARIN) to Oriental Power Holdings, Limited (APNIC) on 2018-01-03 16:33 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":346265,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:47+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Computer Sciences Corporation (ARIN) to Oriental Power Holdings, Limited (APNIC) on 2018-01-03 16:33 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."}],"1dd96cd92cad8e52":[{"raw_change_id":35096,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:39+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2018-01-03 06:39 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35096,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:51+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2018-01-03 06:39 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35096,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:01+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2018-01-03 06:39 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35096,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:36+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from CSC-11-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2018-01-03 06:39 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"6db58520bb9cc643":[{"raw_change_id":553347,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Nichols Research Corporation (ARIN) to Computer Sciences Corporation (ARIN) on 2017-11-09 21:32 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."}]},"arin_statistics_now":{"status":"not listed"}}