{"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":"204.74.99.0 - 204.74.115.255","resource_type":"ipv4","page":"https://rirtracker.com/ip/204.74.99.0-204.74.115.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2022-01-28)"},"current_holder":{"rir":"ARIN","org":"UltraDNS Corporation","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":44838,"date":"2026-07-20T14:11:48Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Vercara, LLC","recipient_org":"Arbor Cloud","range":"204.74.100.0/24","log":"ARIN"},{"id":44839,"date":"2026-07-20T14:11:48Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Vercara, LLC","recipient_org":"Arbor Cloud","range":"204.74.102.0/24","log":"ARIN"},{"id":28197,"date":"2022-05-26T19:03:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"UltraDNS Corporation","recipient_org":"Neustar Security Services","range":"204.74.99.0/24","log":"ARIN"},{"id":28198,"date":"2022-05-26T19:03:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"UltraDNS Corporation","recipient_org":"Neustar Security Services","range":"204.74.100.0/22","log":"ARIN"},{"id":28199,"date":"2022-05-26T19:03:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"UltraDNS Corporation","recipient_org":"Neustar Security Services","range":"204.74.104.0/21","log":"ARIN"},{"id":28200,"date":"2022-05-26T19:03:10Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"UltraDNS Corporation","recipient_org":"Neustar Security Services","range":"204.74.112.0/22","log":"ARIN"},{"id":26810,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.99.0/24","log":"ARIN"},{"id":26811,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.100.0/24","log":"ARIN"},{"id":26812,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.101.0/24","log":"ARIN"},{"id":26806,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.102.0/24","log":"ARIN"},{"id":26790,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.103.0/24","log":"ARIN"},{"id":26791,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.104.0/24","log":"ARIN"},{"id":26805,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.105.0/24","log":"ARIN"},{"id":26804,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.106.0/24","log":"ARIN"},{"id":26792,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.107.0/24","log":"ARIN"},{"id":26803,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.108.0/24","log":"ARIN"},{"id":26793,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.109.0/24","log":"ARIN"},{"id":26794,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.110.0/24","log":"ARIN"},{"id":26802,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.111.0/24","log":"ARIN"},{"id":26801,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.112.0/24","log":"ARIN"},{"id":26800,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.113.0/24","log":"ARIN"},{"id":26795,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.114.0/24","log":"ARIN"},{"id":26796,"date":"2022-01-28T19:53:40Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Internet Media Network","recipient_org":"UltraDNS Corporation","range":"204.74.115.0/24","log":"ARIN"}],"events":[{"event_id":"850e77fb240cc57e","registry":"ARIN","report_date":"2022-01-28","source":"arin_issued","raw_action":"ADD","raw_line":"Add 204.74.99.0-204.74.115.255","resource_type":"ipv4","resource":"204.74.99.0 - 204.74.115.255","start":"204.74.99.0","end":"204.74.115.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Internet Media Network","recipient_organization":"UltraDNS Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:19+00:00","page":"https://rirtracker.com/ip/204.74.99.0-204.74.115.255/#e-850e77fb240cc57e","report_page":"https://rirtracker.com/arin/reports/2022-01-28/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/204.74.99.0-204.74.115.255.json","piece_of":{"resource":"204.74.64.0/18","page":"https://rirtracker.com/ip/204.74.64.0-204.74.127.255/"},"explanation":"ARIN's transfer log records a transfer from Internet Media Network (ARIN) to UltraDNS Corporation (ARIN), recorded as 17 transfer records that together cover exactly this range, on 2022-01-28 19:53 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2022-January/004795.html","retrieved_at":"2026-10-12T18:41:36+00:00","summary":"ARIN-Issued report for 2022-01-28: \"Add 204.74.99.0-204.74.115.255\""},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.103.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.104.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.107.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.109.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.110.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.114.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.115.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.113.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.112.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.111.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.108.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.106.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.105.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.102.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.99.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.100.0/24"},{"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 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.101.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220127.gz","retrieved_at":"2026-10-12T22:55:56+00:00","summary":"ARIN delegated statistics 2022-01-27 (produced 2022-01-27T14:00:10+00:00), before the report: allocated (dated 1994-10-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220129.gz","retrieved_at":"2026-10-12T22:56:11+00:00","summary":"ARIN delegated statistics 2022-01-29 (produced 2022-01-29T14:00:10+00:00), after the report: allocated (dated 2022-01-28)"}]}],"classification_history":{"850e77fb240cc57e":[{"raw_change_id":175148,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:55:04+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Internet Media Network (ARIN) to UltraDNS Corporation (ARIN), recorded as 17 transfer records that together cover exactly this range, on 2022-01-28 19:53 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":175148,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:10+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Internet Media Network (ARIN) to UltraDNS Corporation (ARIN), recorded as 17 transfer records that together cover exactly this range, on 2022-01-28 19:53 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":175148,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:58+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Internet Media Network (ARIN) to UltraDNS Corporation (ARIN), recorded as 17 transfer records that together cover exactly this range, on 2022-01-28 19:53 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":175148,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:19+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Internet Media Network (ARIN) to UltraDNS Corporation (ARIN), recorded as 17 transfer records that together cover exactly this range, on 2022-01-28 19:53 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2022-01-28)"}}