{"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":"129.28.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/129.28.0.0-129.28.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1989-11-01)"},"current_holder":{"rir":"APNIC","org":"Tencent Cloud Computing (Beijing) Co., Ltd","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":10706,"date":"2017-08-29T15:05:26Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"SSCI","recipient_org":"Tencent Cloud Computing (Beijing) Co., Ltd","range":"129.28.0.0/16","log":"ARIN"},{"id":125510,"date":"2017-08-29T06:14:24Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"SSC-399-Z","recipient_org":"Tencent Cloud Computing (Beijing) Co., Ltd","range":"129.28.0.0/16","log":"APNIC"},{"id":10705,"date":"2017-08-29T04:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"SSCI","recipient_org":"Tencent Cloud Computing (Beijing) Co., Ltd","range":"129.28.0.0/16","log":"ARIN"},{"id":10585,"date":"2017-07-31T17:21:22Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Software Productivity Consortium, Inc","recipient_org":"SSCI","range":"129.28.0.0/16","log":"ARIN"}],"events":[{"event_id":"f2b0f219cc0d4ef3","registry":"ARIN","report_date":"2017-08-29","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"129.28.0.0/16","start":"129.28.0.0","end":"129.28.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"SSCI","recipient_organization":"Tencent Cloud Computing (Beijing) Co., 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":"2026-10-14T00:03:23+00:00","page":"https://rirtracker.com/ip/129.28.0.0-129.28.255.255/#e-f2b0f219cc0d4ef3","report_page":"https://rirtracker.com/arin/reports/2017-08-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/129.28.0.0-129.28.255.255.json","observed":"129.28.0.0/16 assigned on 2017-08-29, not listed on 2017-08-30","same_transfer_as":"252ea6bed429e00e","explanation":"ARIN's transfer log records a transfer from SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC), recorded as 2 transfer records that together cover exactly this range, on 2017-08-29 04:00 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/2017/delegated-arin-extended-20170830.gz","retrieved_at":"2026-10-12T21:33:30+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 129.28.0.0/16 assigned on 2017-08-29, not listed on 2017-08-30"},{"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 2017-08-29 04:00 UTC, SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC); resources moved: 129.28.0.0/16"},{"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 2017-08-29 15:05 UTC, SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC); resources moved: 129.28.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170828.gz","retrieved_at":"2026-10-12T21:33:25+00:00","summary":"ARIN delegated statistics 2017-08-28 (produced 2017-08-28T05:11:49+00:00), before the report: assigned (dated 1989-11-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170830.gz","retrieved_at":"2026-10-12T21:33:30+00:00","summary":"ARIN delegated statistics 2017-08-30 (produced 2017-08-30T05:10:27+00:00), after the report: not listed"}]},{"event_id":"252ea6bed429e00e","registry":"APNIC","report_date":"2017-08-29","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"129.28.0.0/16","start":"129.28.0.0","end":"129.28.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"SSC-399-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":"2026-10-13T23:46:35+00:00","page":"https://rirtracker.com/ip/129.28.0.0-129.28.255.255/#e-252ea6bed429e00e","report_page":"https://rirtracker.com/apnic/reports/2017-08-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/129.28.0.0-129.28.255.255.json","observed":"Transfer: SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC)","same_transfer_as":"f2b0f219cc0d4ef3","explanation":"APNIC's transfer log records a transfer from SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2017-08-29 06:14 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 2017-08-29 06:14 UTC, SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC); resources moved: 129.28.0.0/16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2017/delegated-apnic-extended-20170829.gz","retrieved_at":"2026-10-12T22:11:00+00:00","summary":"APNIC delegated statistics 2017-08-29, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2017/delegated-apnic-extended-20170830.gz","retrieved_at":"2026-10-12T22:11:03+00:00","summary":"APNIC delegated statistics 2017-08-30, after the change: allocated (dated 1989-11-01)"}]},{"event_id":"47cc95f6fad8ae4c","registry":"ARIN","report_date":"2017-07-31","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"129.28.0.0/16","start":"129.28.0.0","end":"129.28.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Software Productivity Consortium, Inc","recipient_organization":"SSCI","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:31+00:00","page":"https://rirtracker.com/ip/129.28.0.0-129.28.255.255/#e-47cc95f6fad8ae4c","report_page":"https://rirtracker.com/arin/reports/2017-07-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/129.28.0.0-129.28.255.255.json","observed":"Merger/acquisition: Software Productivity Consortium, Inc (ARIN) to SSCI (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Software Productivity Consortium, Inc (ARIN) to SSCI (ARIN) on 2017-07-31 17:21 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 2017-07-31 17:21 UTC, Software Productivity Consortium, Inc (ARIN) to SSCI (ARIN); resources moved: 129.28.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170730.gz","retrieved_at":"2026-10-12T21:31:58+00:00","summary":"ARIN delegated statistics 2017-07-30 (produced 2017-07-30T05:09:01+00:00), before the report: assigned (dated 1989-11-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170801.gz","retrieved_at":"2026-10-12T21:32:03+00:00","summary":"ARIN delegated statistics 2017-08-01 (produced 2017-08-01T05:09:27+00:00), after the report: assigned (dated 1989-11-01)"}]}],"classification_history":{"f2b0f219cc0d4ef3":[{"raw_change_id":339844,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:14:37+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC), recorded as 2 transfer records that together cover exactly this range, on 2017-08-29 04:00 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":339844,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:41+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC), recorded as 2 transfer records that together cover exactly this range, on 2017-08-29 04:00 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":339844,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:13+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC), recorded as 2 transfer records that together cover exactly this range, on 2017-08-29 04:00 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":339844,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:23+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from SSCI (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC), recorded as 2 transfer records that together cover exactly this range, on 2017-08-29 04:00 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."}],"252ea6bed429e00e":[{"raw_change_id":34867,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:32+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2017-08-29 06:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":34867,"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 SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2017-08-29 06:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":34867,"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 SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2017-08-29 06:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":34867,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:35+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from SSC-399-Z (ARIN) to Tencent Cloud Computing (Beijing) Co., Ltd (APNIC) on 2017-08-29 06:14 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"47cc95f6fad8ae4c":[{"raw_change_id":552842,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:31+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Software Productivity Consortium, Inc (ARIN) to SSCI (ARIN) on 2017-07-31 17:21 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"}}