{"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":"71.131.192.0/18","resource_type":"ipv4","page":"https://rirtracker.com/ip/71.131.192.0-71.131.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2017-12-30)"},"current_holder":{"rir":"APNIC","org":"China Internet Network Information Center/sinnet","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":126563,"date":"2020-07-10T00:01:44Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"Amazon Connection Technology Services (Beijing) Co., LTD","recipient_org":"China Internet Network Information Center/sinnet","range":"71.131.192.0/18","log":"APNIC"},{"id":13495,"date":"2018-06-28T18:03:55Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Amazon.com, Inc.","recipient_org":"Amazon Connection Technology Services Co., LTD","range":"71.131.192.0/18","log":"ARIN"},{"id":125802,"date":"2018-06-28T15:19:46Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"AMAZO-4","recipient_org":"Amazon Connection Technology Services (Beijing) Co., LTD","range":"71.131.192.0/18","log":"APNIC"},{"id":11754,"date":"2017-12-29T19:30:54Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"AT&T Internet Services","recipient_org":"Amazon.com, Inc.","range":"71.131.192.0 - 71.132.63.255","log":"ARIN"}],"events":[{"event_id":"e28e09dbbe4011a6","registry":"APNIC","report_date":"2020-07-10","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"71.131.192.0/18","start":"71.131.192.0","end":"71.131.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"Amazon Connection Technology Services (Beijing) Co., LTD","recipient_organization":"China Internet Network Information Center/sinnet","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:39+00:00","page":"https://rirtracker.com/ip/71.131.192.0-71.131.255.255/#e-e28e09dbbe4011a6","report_page":"https://rirtracker.com/apnic/reports/2020-07-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/71.131.192.0-71.131.255.255.json","observed":"Transfer: Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC)","explanation":"APNIC's transfer log records a transfer from Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC) on 2020-07-10 00:01 UTC. The registration changed hands; it is not a new allocation from APNIC.","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 2020-07-10 00:01 UTC, Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC); resources moved: 71.131.192.0/18, 71.132.0.0/18, 71.136.64.0/18, 71.137.0.0/18"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2020/delegated-apnic-extended-20200710.gz","retrieved_at":"2026-10-12T23:23:06+00:00","summary":"APNIC delegated statistics 2020-07-10, before the change: allocated (dated 2017-12-30)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2020/delegated-apnic-extended-20200711.gz","retrieved_at":"2026-10-12T23:23:10+00:00","summary":"APNIC delegated statistics 2020-07-11, after the change: allocated (dated 2017-12-30)"}]},{"event_id":"2587c19a31757a37","registry":"APNIC","report_date":"2018-06-29","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"71.131.192.0/18","start":"71.131.192.0","end":"71.131.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"AMAZO-4","recipient_organization":"Amazon Connection Technology Services (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/71.131.192.0-71.131.255.255/#e-2587c19a31757a37","report_page":"https://rirtracker.com/apnic/reports/2018-06-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/71.131.192.0-71.131.255.255.json","observed":"Transfer: AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC)","same_transfer_as":"a0c1431d62c45476","explanation":"APNIC's transfer log records a transfer from AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) on 2018-06-28 15:19 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 2018-06-28 15:19 UTC, AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC); resources moved: 68.79.0.0/18, 69.230.192.0/18, 69.231.128.0/18, 69.234.192.0/18, 69.235.128.0/18, 71.131.192.0/18, 71.132.0.0/18, 71.136.64.0/18, 71.137.0.0/18, 140.179.0.0/16, 161.189.0.0/16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2018/delegated-apnic-extended-20180629.gz","retrieved_at":"2026-10-12T22:31:20+00:00","summary":"APNIC delegated statistics 2018-06-29, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2018/delegated-apnic-extended-20180630.gz","retrieved_at":"2026-10-12T22:31:23+00:00","summary":"APNIC delegated statistics 2018-06-30, after the change: allocated (dated 2017-12-30)"}]},{"event_id":"a0c1431d62c45476","registry":"ARIN","report_date":"2018-06-28","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"71.131.192.0/18","start":"71.131.192.0","end":"71.131.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Amazon.com, Inc.","recipient_organization":"Amazon Connection Technology Services 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":"2026-10-14T00:04:28+00:00","page":"https://rirtracker.com/ip/71.131.192.0-71.131.255.255/#e-a0c1431d62c45476","report_page":"https://rirtracker.com/arin/reports/2018-06-28/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/71.131.192.0-71.131.255.255.json","observed":"71.131.192.0/18 allocated on 2018-06-28, not listed on 2018-06-29","same_transfer_as":"2587c19a31757a37","explanation":"ARIN's transfer log records a transfer from Amazon.com, Inc. (ARIN) to Amazon Connection Technology Services Co., LTD (APNIC) on 2018-06-28 18:03 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-20180629.gz","retrieved_at":"2026-10-12T21:48:31+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 71.131.192.0/18 allocated on 2018-06-28, not listed on 2018-06-29"},{"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 2018-06-28 18:03 UTC, Amazon.com, Inc. (ARIN) to Amazon Connection Technology Services Co., LTD (APNIC); resources moved: 71.131.192.0/18"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180627.gz","retrieved_at":"2026-10-12T21:48:26+00:00","summary":"ARIN delegated statistics 2018-06-27 (produced 2018-06-27T05:00:24+00:00), before the report: allocated (dated 2017-12-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180629.gz","retrieved_at":"2026-10-12T21:48:31+00:00","summary":"ARIN delegated statistics 2018-06-29 (produced 2018-06-29T05:00:26+00:00), after the report: not listed"}]}],"classification_history":{"e28e09dbbe4011a6":[{"raw_change_id":36556,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:36:20+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC) on 2020-07-10 00:01 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":36556,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:54+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC) on 2020-07-10 00:01 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":36556,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:04+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC) on 2020-07-10 00:01 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":36556,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:39+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) to China Internet Network Information Center/sinnet (APNIC) on 2020-07-10 00:01 UTC. The registration changed hands; it is not a new allocation from APNIC."}],"2587c19a31757a37":[{"raw_change_id":35381,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:46+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) on 2018-06-28 15:19 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35381,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:52+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) on 2018-06-28 15:19 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35381,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:02+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) on 2018-06-28 15:19 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35381,"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 AMAZO-4 (ARIN) to Amazon Connection Technology Services (Beijing) Co., LTD (APNIC) on 2018-06-28 15:19 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"a0c1431d62c45476":[{"raw_change_id":356642,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:22:25+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Amazon.com, Inc. (ARIN) to Amazon Connection Technology Services Co., LTD (APNIC) on 2018-06-28 18:03 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":356642,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:16:35+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Amazon.com, Inc. (ARIN) to Amazon Connection Technology Services Co., LTD (APNIC) on 2018-06-28 18:03 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":356642,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:00:11+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Amazon.com, Inc. (ARIN) to Amazon Connection Technology Services Co., LTD (APNIC) on 2018-06-28 18:03 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":356642,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:04:28+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Amazon.com, Inc. (ARIN) to Amazon Connection Technology Services Co., LTD (APNIC) on 2018-06-28 18:03 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."}]},"arin_statistics_now":{"status":"not listed"}}