{"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":"5.183.12.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/5.183.12.0-5.183.15.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2019-04-09)"},"current_holder":{"rir":"RIPE NCC","org":"ISP Alliance a.s.","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":98473,"date":"2023-10-05T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"Bohemia Net Provider sro","recipient_org":"ISP Alliance a.s.","range":"5.183.12.0/22","log":"RIPE NCC"},{"id":78402,"date":"2021-05-25T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"AMC CZ s.r.o.","recipient_org":"Bohemia Net Provider sro","range":"5.183.12.0/22","log":"RIPE NCC"}],"events":[{"event_id":"7d82436ef1c56c7f","registry":"RIPE NCC","report_date":"2023-10-05","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"5.183.12.0/22","start":"5.183.12.0","end":"5.183.15.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-RIPE NCC transfer","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"Bohemia Net Provider sro","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":"2026-10-13T23:49:41+00:00","page":"https://rirtracker.com/ip/5.183.12.0-5.183.15.255/#e-7d82436ef1c56c7f","report_page":"https://rirtracker.com/ripe/reports/2023-10-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/5.183.12.0-5.183.15.255.json","observed":"Transfer: Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a transfer from Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-10-05 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 2023-10-05 19:00 UTC, Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC); resources moved: 5.183.12.0/22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20231004.bz2","retrieved_at":"2026-10-13T00:13:21+00:00","summary":"RIPE NCC delegated statistics 2023-10-04 (produced 2023-10-04T21:59:59+00:00), before the change: allocated (dated 2019-04-09)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20231005.bz2","retrieved_at":"2026-10-13T00:13:24+00:00","summary":"RIPE NCC delegated statistics 2023-10-05 (produced 2023-10-05T21:59:59+00:00), after the change: allocated (dated 2019-04-09)"}]},{"event_id":"5a5c734ed13a7840","registry":"RIPE NCC","report_date":"2021-05-25","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"5.183.12.0/22","start":"5.183.12.0","end":"5.183.15.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"AMC CZ s.r.o.","recipient_organization":"Bohemia Net Provider sro","inventory_effect":"No effect on RIPE NCC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:37+00:00","page":"https://rirtracker.com/ip/5.183.12.0-5.183.15.255/#e-5a5c734ed13a7840","report_page":"https://rirtracker.com/ripe/reports/2021-05-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/5.183.12.0-5.183.15.255.json","observed":"Merger/acquisition: AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC) on 2021-05-25 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: MERGER_ACQUISITION on 2021-05-25 19:00 UTC, AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC); resources moved: 5.183.12.0/22"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210524.bz2","retrieved_at":"2026-10-12T23:08:15+00:00","summary":"RIPE NCC delegated statistics 2021-05-24 (produced 2021-05-24T21:59:00+00:00), before the change: allocated (dated 2019-04-09)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210525.bz2","retrieved_at":"2026-10-12T23:08:37+00:00","summary":"RIPE NCC delegated statistics 2021-05-25 (produced 2021-05-25T21:59:00+00:00), after the change: allocated (dated 2019-04-09)"}]},{"event_id":"bb8e43e38a03b555","registry":"RIPE NCC","report_date":"2019-04-09","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"5.183.12.0/22","start":"5.183.12.0","end":"5.183.15.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:05:45+00:00","page":"https://rirtracker.com/ip/5.183.12.0-5.183.15.255/#e-bb8e43e38a03b555","report_page":"https://rirtracker.com/ripe/reports/2019-04-09/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/5.183.12.0-5.183.15.255.json","observed":"5.183.12.0/22 available on 2019-04-08, allocated on 2019-04-09","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2019-04-08 and allocated (dated 2019-04-09) on 2019-04-09. The tracker saw this range released from hold on 2015-03-12 (5.180.0.0/14), so it appears to have been issued again from the RIPE NCC's pool.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20190409.bz2","retrieved_at":"2026-10-12T22:07:53+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: 5.183.12.0/22 available on 2019-04-08, allocated on 2019-04-09"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20190408.bz2","retrieved_at":"2026-10-12T22:07:50+00:00","summary":"RIPE NCC delegated statistics 2019-04-08 (produced 2019-04-08T21:59:59+00:00), before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2019/delegated-ripencc-extended-20190409.bz2","retrieved_at":"2026-10-12T22:07:53+00:00","summary":"RIPE NCC delegated statistics 2019-04-09 (produced 2019-04-09T21:59:59+00:00), after the change: allocated (dated 2019-04-09)"}]}],"classification_history":{"7d82436ef1c56c7f":[{"raw_change_id":98955,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:02:13+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-10-05 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":98955,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:24+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-10-05 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":98955,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:51+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-10-05 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":98955,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:41+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from Bohemia Net Provider sro (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-10-05 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"5a5c734ed13a7840":[{"raw_change_id":78537,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:53:49+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC) on 2021-05-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":78537,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:33+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC) on 2021-05-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":78537,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:54+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC) on 2021-05-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":78537,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:37+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from AMC CZ s.r.o. (RIPE NCC) to Bohemia Net Provider sro (RIPE NCC) on 2021-05-25 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"bb8e43e38a03b555":[{"raw_change_id":376883,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:30:51+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2019-04-08 and allocated (dated 2019-04-09) on 2019-04-09. The tracker saw this range released from hold on 2015-03-12 (5.180.0.0/14), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":376883,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:17:38+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2019-04-08 and allocated (dated 2019-04-09) on 2019-04-09. The tracker saw this range released from hold on 2015-03-12 (5.180.0.0/14), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":376883,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:01:20+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2019-04-08 and allocated (dated 2019-04-09) on 2019-04-09. The tracker saw this range released from hold on 2015-03-12 (5.180.0.0/14), so it appears to have been issued again from the RIPE NCC's pool."},{"raw_change_id":376883,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:05:45+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2019-04-08 and allocated (dated 2019-04-09) on 2019-04-09. The tracker saw this range released from hold on 2015-03-12 (5.180.0.0/14), so it appears to have been issued again from the RIPE NCC's pool."}]},"arin_statistics_now":{"status":"not listed"}}