{"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":"147.161.28.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/147.161.28.0-147.161.31.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1991-05-01)"},"current_holder":{"rir":"RIPE NCC","org":"WIA spol. s.r.o.","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":89441,"date":"2022-09-06T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"ISP Alliance a.s.","recipient_org":"WIA spol. s.r.o.","range":"147.161.28.0/22","log":"RIPE NCC"},{"id":70935,"date":"2020-07-07T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"CC INTERNET s.r.o.","recipient_org":"ISP Alliance a.s.","range":"147.161.28.0/22","log":"RIPE NCC"}],"events":[{"event_id":"5a14a2327c154042","registry":"RIPE NCC","report_date":"2022-09-06","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"147.161.28.0/22","start":"147.161.28.0","end":"147.161.31.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-RIPE NCC transfer","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"ISP Alliance a.s.","recipient_organization":"WIA spol. s.r.o.","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:12+00:00","page":"https://rirtracker.com/ip/147.161.28.0-147.161.31.255/#e-5a14a2327c154042","report_page":"https://rirtracker.com/ripe/reports/2022-09-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.161.28.0-147.161.31.255.json","observed":"Transfer: ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a transfer from ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC) on 2022-09-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2022-09-06 19:00 UTC, ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC); resources moved: 147.161.28.0/22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20220905.bz2","retrieved_at":"2026-10-12T23:43:29+00:00","summary":"RIPE NCC delegated statistics 2022-09-05 (produced 2022-09-05T21:59:59+00:00), before the change: allocated (dated 1991-05-01)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20220906.bz2","retrieved_at":"2026-10-12T23:43:32+00:00","summary":"RIPE NCC delegated statistics 2022-09-06 (produced 2022-09-06T21:59:59+00:00), after the change: allocated (dated 1991-05-01)"}]},{"event_id":"40daf2b377193a03","registry":"RIPE NCC","report_date":"2020-07-07","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"147.161.28.0/22","start":"147.161.28.0","end":"147.161.31.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-RIPE NCC transfer","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"CC INTERNET s.r.o.","recipient_organization":"ISP Alliance a.s.","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:14+00:00","page":"https://rirtracker.com/ip/147.161.28.0-147.161.31.255/#e-40daf2b377193a03","report_page":"https://rirtracker.com/ripe/reports/2020-07-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.161.28.0-147.161.31.255.json","observed":"Transfer: CC INTERNET s.r.o. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC)","piece_of":{"resource":"147.161.0.0/16","page":"https://rirtracker.com/ip/147.161.0.0-147.161.255.255/"},"explanation":"The RIPE NCC's transfer log records a transfer from CC INTERNET s.r.o. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2020-07-07 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2020-07-07 19:00 UTC, CC INTERNET s.r.o. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC); resources moved: 147.161.28.0/22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200706.bz2","retrieved_at":"2026-10-12T22:42:14+00:00","summary":"RIPE NCC delegated statistics 2020-07-06 (produced 2020-07-06T21:59:59+00:00), before the change: allocated (dated 1991-05-01)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200707.bz2","retrieved_at":"2026-10-12T22:42:36+00:00","summary":"RIPE NCC delegated statistics 2020-07-07 (produced 2020-07-07T21:59:59+00:00), after the change: allocated (dated 1991-05-01)"}]}],"classification_history":{"5a14a2327c154042":[{"raw_change_id":89783,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:58:22+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC) on 2022-09-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":89783,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:01+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC) on 2022-09-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":89783,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:25+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC) on 2022-09-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":89783,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:12+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from ISP Alliance a.s. (RIPE NCC) to WIA spol. s.r.o. (RIPE NCC) on 2022-09-06 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"40daf2b377193a03":[{"raw_change_id":70714,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:50:32+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from CC INTERNET s.r.o. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2020-07-07 19:00 UTC. 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The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":70714,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:14+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from CC INTERNET s.r.o. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2020-07-07 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}]},"arin_statistics_now":{"status":"not listed"}}