{"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":"31.1.0.0 - 31.2.127.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/31.1.0.0-31.2.127.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-04-25)"},"current_holder":{"rir":"ARIN","org":"Amazon.com, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":105098,"date":"2024-04-25T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Polkomtel Sp. z o.o.","recipient_org":null,"range":"31.1.0.0/16","log":"RIPE NCC"},{"id":105099,"date":"2024-04-25T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Polkomtel Sp. z o.o.","recipient_org":null,"range":"31.2.0.0/17","log":"RIPE NCC"},{"id":35325,"date":"2024-04-25T13:58:24Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Polkomtel Sp. z o.o.","recipient_org":"Amazon.com, Inc.","range":"31.1.0.0/16","log":"ARIN"},{"id":35326,"date":"2024-04-25T13:58:24Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_org":"Polkomtel Sp. z o.o.","recipient_org":"Amazon.com, Inc.","range":"31.2.0.0/17","log":"ARIN"}],"events":[{"event_id":"1e7c2394c40c7374","registry":"ARIN","report_date":"2024-04-25","source":"arin_issued","raw_action":"ADD","raw_line":"Add 31.1.0.0-31.2.127.255","resource_type":"ipv4","resource":"31.1.0.0 - 31.2.127.255","start":"31.1.0.0","end":"31.2.127.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into ARIN","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"ARIN","source_organization":"Polkomtel Sp. z o.o.","recipient_organization":"Amazon.com, Inc.","inventory_effect":"Transferred into ARIN administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:03+00:00","page":"https://rirtracker.com/ip/31.1.0.0-31.2.127.255/#e-1e7c2394c40c7374","report_page":"https://rirtracker.com/arin/reports/2024-04-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/31.1.0.0-31.2.127.255.json","same_transfer_as":"83d5a95f8c90d0d8","explanation":"ARIN's transfer log records a transfer from Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN), recorded as 2 transfer records that together cover exactly this range, on 2024-04-25 13:58 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-April/005613.html","retrieved_at":"2026-10-12T18:42:33+00:00","summary":"ARIN-Issued report for 2024-04-25: \"Add 31.1.0.0-31.2.127.255\""},{"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 2024-04-25 13:58 UTC, Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN); resources moved: 31.1.0.0/16"},{"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 2024-04-25 13:58 UTC, Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN); resources moved: 31.2.0.0/17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240424.gz","retrieved_at":"2026-10-12T23:38:58+00:00","summary":"ARIN delegated statistics 2024-04-24 (produced 2024-04-24T13:00:47+00:00), before the report: not listed"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240426.gz","retrieved_at":"2026-10-12T23:39:03+00:00","summary":"ARIN delegated statistics 2024-04-26 (produced 2024-04-26T13:00:48+00:00), after the report: allocated (dated 2024-04-25)"}]}],"classification_history":{"1e7c2394c40c7374":[{"raw_change_id":186966,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:02:03+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN), recorded as 2 transfer records that together cover exactly this range, on 2024-04-25 13:58 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":186966,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:42+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN), recorded as 2 transfer records that together cover exactly this range, on 2024-04-25 13:58 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":186966,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:34+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN), recorded as 2 transfer records that together cover exactly this range, on 2024-04-25 13:58 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":186966,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:03+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Polkomtel Sp. z o.o. (RIPE NCC) to Amazon.com, Inc. (ARIN), recorded as 2 transfer records that together cover exactly this range, on 2024-04-25 13:58 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"allocated (dated 2024-04-25)"}}