{"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":"172.93.56.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/172.93.56.0-172.93.59.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2017-01-26)"},"current_holder":{"rir":"ARIN","org":"Vianet Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":45596,"date":"2026-09-15T20:46:14Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Netspectrum Wireless Internet Solutions","recipient_org":"Vianet Inc.","range":"172.93.56.0/22","log":"ARIN"},{"id":8621,"date":"2017-01-26T14:09:02Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"VegasNAP, LLC","recipient_org":"Netspectrum Wireless Internet Solutions","range":"172.93.56.0/22","log":"ARIN"}],"events":[{"event_id":"3d67b6ea7c6aead0","registry":"ARIN","report_date":"2026-09-15","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"172.93.56.0/22","start":"172.93.56.0","end":"172.93.59.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Netspectrum Wireless Internet Solutions","recipient_organization":"Vianet Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:30+00:00","page":"https://rirtracker.com/ip/172.93.56.0-172.93.59.255/#e-3d67b6ea7c6aead0","report_page":"https://rirtracker.com/arin/reports/2026-09-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.93.56.0-172.93.59.255.json","observed":"Merger/acquisition: Netspectrum Wireless Internet Solutions (ARIN) to Vianet Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Netspectrum Wireless Internet Solutions (ARIN) to Vianet Inc. (ARIN) on 2026-09-15 20:46 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 2026-09-15 20:46 UTC, Netspectrum Wireless Internet Solutions (ARIN) to Vianet Inc. (ARIN); resources moved: 172.93.56.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260914","retrieved_at":"2026-10-09T19:07:37+00:00","summary":"ARIN delegated statistics 2026-09-14 (produced 2026-09-14T13:00:20+00:00), before the report: allocated (dated 2017-01-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260916","retrieved_at":"2026-10-09T19:07:44+00:00","summary":"ARIN delegated statistics 2026-09-16 (produced 2026-09-16T13:00:21+00:00), after the report: allocated (dated 2017-01-26)"}]},{"event_id":"2c17adb8fe8826aa","registry":"ARIN","report_date":"2017-01-26","source":"arin_issued","raw_action":"ADD","raw_line":"Add 172.93.56.0-172.93.59.255","resource_type":"ipv4","resource":"172.93.56.0/22","start":"172.93.56.0","end":"172.93.59.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"VegasNAP, LLC","recipient_organization":"Netspectrum Wireless Internet Solutions","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:42+00:00","page":"https://rirtracker.com/ip/172.93.56.0-172.93.59.255/#e-2c17adb8fe8826aa","report_page":"https://rirtracker.com/arin/reports/2017-01-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/172.93.56.0-172.93.59.255.json","piece_of":{"resource":"172.93.0.0/18","page":"https://rirtracker.com/ip/172.93.0.0-172.93.63.255/"},"explanation":"ARIN's transfer log records a transfer from VegasNAP, LLC (ARIN) to Netspectrum Wireless Internet Solutions (ARIN) on 2017-01-26 14:09 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/2017-January/002968.html","retrieved_at":"2026-10-12T18:39:29+00:00","summary":"ARIN-Issued report for 2017-01-26: \"Add 172.93.56.0-172.93.59.255\""},{"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 2017-01-26 14:09 UTC, VegasNAP, LLC (ARIN) to Netspectrum Wireless Internet Solutions (ARIN); resources moved: 172.93.56.0/22"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170125.gz","retrieved_at":"2026-10-12T21:22:42+00:00","summary":"ARIN delegated statistics 2017-01-25 (produced 2017-01-25T06:10:05+00:00), before the report: allocated (dated 2015-06-01)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170127.gz","retrieved_at":"2026-10-12T21:22:47+00:00","summary":"ARIN delegated statistics 2017-01-27 (produced 2017-01-27T06:09:57+00:00), after the report: allocated (dated 2017-01-26)"}]}],"classification_history":{"3d67b6ea7c6aead0":[{"raw_change_id":577301,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:30+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Netspectrum Wireless Internet Solutions (ARIN) to Vianet Inc. (ARIN) on 2026-09-15 20:46 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."}],"2c17adb8fe8826aa":[{"raw_change_id":147532,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:37:00+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from VegasNAP, LLC (ARIN) to Netspectrum Wireless Internet Solutions (ARIN) on 2017-01-26 14:09 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":147532,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:57+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from VegasNAP, LLC (ARIN) to Netspectrum Wireless Internet Solutions (ARIN) on 2017-01-26 14:09 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":147532,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:35+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from VegasNAP, LLC (ARIN) to Netspectrum Wireless Internet Solutions (ARIN) on 2017-01-26 14:09 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":147532,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:42+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from VegasNAP, LLC (ARIN) to Netspectrum Wireless Internet Solutions (ARIN) on 2017-01-26 14:09 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 2017-01-26)"}}