{"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":"172.84.155.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/172.84.155.0-172.84.155.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2018-01-13)"},"current_holder":{"rir":"ARIN","org":"SDC Internet","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":32064,"date":"2023-05-31T21:28:31Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"SDC Internet","recipient_org":"SDC Internet","range":"172.84.155.0/24","log":"ARIN"}],"events":[{"event_id":"07af3ebaa4c37488","registry":"ARIN","report_date":"2023-05-31","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"172.84.155.0/24","start":"172.84.155.0","end":"172.84.155.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"SDC Internet","recipient_organization":"SDC Internet","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:09+00:00","page":"https://rirtracker.com/ip/172.84.155.0-172.84.155.255/#e-07af3ebaa4c37488","report_page":"https://rirtracker.com/arin/reports/2023-05-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.84.155.0-172.84.155.255.json","observed":"Merger/acquisition: SDC Internet (ARIN) to SDC Internet (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from SDC Internet (ARIN) to SDC Internet (ARIN) on 2023-05-31 21:28 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 2023-05-31 21:28 UTC, SDC Internet (ARIN) to SDC Internet (ARIN); resources moved: 172.84.155.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230530.gz","retrieved_at":"2026-10-12T23:21:29+00:00","summary":"ARIN delegated statistics 2023-05-30 (produced 2023-05-30T13:00:11+00:00), before the report: allocated (dated 2018-01-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2023/delegated-arin-extended-20230601.gz","retrieved_at":"2026-10-12T23:21:34+00:00","summary":"ARIN delegated statistics 2023-06-01 (produced 2023-06-01T13:00:12+00:00), after the report: allocated (dated 2018-01-13)"}]},{"event_id":"80129e5916dbf8a0","registry":"ARIN","report_date":"2018-01-13","source":"arin_issued","raw_action":"ADD","raw_line":"Add 172.84.155.0-172.84.155.255","resource_type":"ipv4","resource":"172.84.155.0/24","start":"172.84.155.0","end":"172.84.155.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:03+00:00","page":"https://rirtracker.com/ip/172.84.155.0-172.84.155.255/#e-80129e5916dbf8a0","report_page":"https://rirtracker.com/arin/reports/2018-01-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.84.155.0-172.84.155.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-January/003321.html","retrieved_at":"2026-10-12T18:39:55+00:00","summary":"ARIN-Issued report for 2018-01-13: \"Add 172.84.155.0-172.84.155.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180112.gz","retrieved_at":"2026-10-12T21:40:11+00:00","summary":"ARIN delegated statistics 2018-01-12 (produced 2018-01-12T06:09:18+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180114.gz","retrieved_at":"2026-10-12T21:40:16+00:00","summary":"ARIN delegated statistics 2018-01-14 (produced 2018-01-14T06:10:46+00:00), after the report: allocated (dated 2018-01-13)"}]},{"event_id":"b57892047c63e814","registry":"ARIN","report_date":"2018-01-13","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 172.84.155.0-172.84.155.255","resource_type":"ipv4","resource":"172.84.155.0/24","start":"172.84.155.0","end":"172.84.155.255","classification":"POOL_RECORD_CHANGE","classification_label":"Change to ARIN's own pool record","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Part of the issuance reported the same day","inventory_effect_code":"PAIRED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:02+00:00","page":"https://rirtracker.com/ip/172.84.155.0-172.84.155.255/#e-b57892047c63e814","report_page":"https://rirtracker.com/arin/reports/2018-01-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.84.155.0-172.84.155.255.json","explanation":"ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.84.155.0-172.84.155.255. The issuance is explained on that line.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2018-January/003321.html","retrieved_at":"2026-10-12T18:39:55+00:00","summary":"ARIN-Issued report for 2018-01-13: \"Remove 172.84.155.0-172.84.155.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180112.gz","retrieved_at":"2026-10-12T21:40:11+00:00","summary":"ARIN delegated statistics 2018-01-12 (produced 2018-01-12T06:09:18+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180114.gz","retrieved_at":"2026-10-12T21:40:16+00:00","summary":"ARIN delegated statistics 2018-01-14 (produced 2018-01-14T06:10:46+00:00), after the report: allocated (dated 2018-01-13)"}]}],"classification_history":{"07af3ebaa4c37488":[{"raw_change_id":568608,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:09+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from SDC Internet (ARIN) to SDC Internet (ARIN) on 2023-05-31 21:28 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."}],"80129e5916dbf8a0":[{"raw_change_id":152841,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:40:10+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":152841,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:12+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":152841,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:53+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":152841,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:03+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}],"b57892047c63e814":[{"raw_change_id":152826,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:40:09+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.84.155.0-172.84.155.255. The issuance is explained on that line."},{"raw_change_id":152826,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:12+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.84.155.0-172.84.155.255. The issuance is explained on that line."},{"raw_change_id":152826,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:53+00:00","current":0,"public_explanation":"ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.84.155.0-172.84.155.255. The issuance is explained on that line."},{"raw_change_id":152826,"classification_code":"POOL_RECORD_CHANGE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:02+00:00","current":1,"public_explanation":"ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.84.155.0-172.84.155.255. The issuance is explained on that line."}]},"arin_statistics_now":{"status":"allocated (dated 2018-01-13)"}}