{"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":"AS57158","resource_type":"asn","page":"https://rirtracker.com/asn/57158/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2011-08-09)"},"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":96676,"date":"2023-06-28T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"GRAPE SC, a.s.","recipient_org":"ISP Alliance a.s.","range":"AS57158","log":"RIPE NCC"},{"id":70116,"date":"2020-05-18T19:00:00Z","type":"MERGER_ACQUISITION","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_org":"MELVI s.r.o.","recipient_org":"GRAPE SC, a.s.","range":"AS57158","log":"RIPE NCC"}],"events":[{"event_id":"9a39fb8776226426","registry":"RIPE NCC","report_date":"2023-06-28","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS57158","start":57158,"end":57158,"classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-RIPE NCC transfer","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"GRAPE SC, a.s.","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":"2026-10-13T23:49:35+00:00","page":"https://rirtracker.com/asn/57158/#e-9a39fb8776226426","report_page":"https://rirtracker.com/ripe/reports/2023-06-28/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/57158.json","observed":"Transfer: GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a transfer from GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-06-28 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 2023-06-28 19:00 UTC, GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC); resources moved: AS57158"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230627.bz2","retrieved_at":"2026-10-13T00:05:48+00:00","summary":"RIPE NCC delegated statistics 2023-06-27 (produced 2023-06-27T21:59:59+00:00), before the change: allocated (dated 2011-08-09)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2023/delegated-ripencc-extended-20230628.bz2","retrieved_at":"2026-10-13T00:05:51+00:00","summary":"RIPE NCC delegated statistics 2023-06-28 (produced 2023-06-28T21:59:59+00:00), after the change: allocated (dated 2011-08-09)"}]},{"event_id":"e0504953d4e95b21","registry":"RIPE NCC","report_date":"2020-05-18","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS57158","start":57158,"end":57158,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"RIPE NCC","recipient_rir":"RIPE NCC","source_organization":"MELVI s.r.o.","recipient_organization":"GRAPE SC, 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":"2026-10-13T23:48:11+00:00","page":"https://rirtracker.com/asn/57158/#e-e0504953d4e95b21","report_page":"https://rirtracker.com/ripe/reports/2020-05-18/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/57158.json","observed":"Merger/acquisition: MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC) on 2020-05-18 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 2020-05-18 19:00 UTC, MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC); resources moved: AS57158"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200517.bz2","retrieved_at":"2026-10-12T22:38:29+00:00","summary":"RIPE NCC delegated statistics 2020-05-17 (produced 2020-05-17T21:59:59+00:00), before the change: allocated (dated 2011-08-09)"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2020/delegated-ripencc-extended-20200518.bz2","retrieved_at":"2026-10-12T22:38:32+00:00","summary":"RIPE NCC delegated statistics 2020-05-18 (produced 2020-05-18T21:59:59+00:00), after the change: allocated (dated 2011-08-09)"}]},{"event_id":"03aa52304ef27fa2","registry":"RIPE NCC","report_date":"2011-08-09","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"asn","resource":"AS57158","start":57158,"end":57158,"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 RIPE NCC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:37+00:00","page":"https://rirtracker.com/asn/57158/#e-03aa52304ef27fa2","report_page":"https://rirtracker.com/ripe/reports/2011-08-09/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/57158.json","observed":"AS57158 available on 2011-08-08, allocated on 2011-08-09","explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2011-08-08 and allocated (dated 2011-08-09) on 2011-08-09. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC.","evidence":[{"type":"statistics_diff","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110809.bz2","retrieved_at":"2026-10-12T19:01:24+00:00","summary":"Found by comparing the RIPE NCC's daily statistics: AS57158 available on 2011-08-08, allocated on 2011-08-09"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110808.bz2","retrieved_at":"2026-10-12T19:01:21+00:00","summary":"RIPE NCC delegated statistics 2011-08-08 (produced 2011-08-08T21:59:59+00:00), before the change: available"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2011/delegated-ripencc-extended-20110809.bz2","retrieved_at":"2026-10-12T19:01:24+00:00","summary":"RIPE NCC delegated statistics 2011-08-09 (produced 2011-08-09T21:59:59+00:00), after the change: allocated (dated 2011-08-09)"}]}],"classification_history":{"9a39fb8776226426":[{"raw_change_id":97146,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:01:26+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-06-28 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":97146,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:04:19+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-06-28 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":97146,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:46+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-06-28 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":97146,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:35+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from GRAPE SC, a.s. (RIPE NCC) to ISP Alliance a.s. (RIPE NCC) on 2023-06-28 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"e0504953d4e95b21":[{"raw_change_id":69879,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:50:10+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC) on 2020-05-18 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":69879,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:11+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC) on 2020-05-18 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":69879,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:30+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC) on 2020-05-18 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."},{"raw_change_id":69879,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:11+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a merger, acquisition or reorganization from MELVI s.r.o. (RIPE NCC) to GRAPE SC, a.s. (RIPE NCC) on 2020-05-18 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC."}],"03aa52304ef27fa2":[{"raw_change_id":214666,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:14:16+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2011-08-08 and allocated (dated 2011-08-09) on 2011-08-09. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":214666,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:59+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2011-08-08 and allocated (dated 2011-08-09) on 2011-08-09. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":214666,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:59+00:00","current":0,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2011-08-08 and allocated (dated 2011-08-09) on 2011-08-09. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."},{"raw_change_id":214666,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:37+00:00","current":1,"public_explanation":"No transfer record matches. The RIPE NCC's statistics show it available on 2011-08-08 and allocated (dated 2011-08-09) on 2011-08-09. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC."}]},"arin_statistics_now":{"status":"not listed"}}