{"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":"146.183.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/146.183.0.0-146.183.255.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1991-02-26)"},"current_holder":{"rir":"RIPE NCC","org":"Outscale SASU","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":84203,"date":"2021-12-14T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Outscale SASU","range":"146.183.0.0/16","log":"RIPE NCC"},{"id":26383,"date":"2021-12-14T13:44:24Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Whittaker Corporation","recipient_org":"Outscale SASU","range":"146.183.0.0/16","log":"ARIN"},{"id":25622,"date":"2021-09-23T15:57:23Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Aptec Computer Systems, Inc.","recipient_org":"Whittaker Corporation","range":"146.183.0.0/16","log":"ARIN"}],"events":[{"event_id":"0403a00ab33ba9c1","registry":"RIPE NCC","report_date":"2021-12-14","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"146.183.0.0/16","start":"146.183.0.0","end":"146.183.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into the RIPE NCC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":null,"recipient_organization":"Outscale SASU","inventory_effect":"Transferred into RIPE NCC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:55+00:00","page":"https://rirtracker.com/ip/146.183.0.0-146.183.255.255/#e-0403a00ab33ba9c1","report_page":"https://rirtracker.com/ripe/reports/2021-12-14/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.183.0.0-146.183.255.255.json","observed":"Transfer: (no name) (ARIN) to Outscale SASU (RIPE NCC)","same_transfer_as":"4e7466cd1bf783d1","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.","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 2021-12-14 19:00 UTC, (no name) (ARIN) to Outscale SASU (RIPE NCC); resources moved: 146.183.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20211213.bz2","retrieved_at":"2026-10-12T23:23:37+00:00","summary":"RIPE NCC delegated statistics 2021-12-13 (produced 2021-12-13T22:59:00+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20211214.bz2","retrieved_at":"2026-10-12T23:23:40+00:00","summary":"RIPE NCC delegated statistics 2021-12-14 (produced 2021-12-14T22:59:00+00:00), after the change: allocated (dated 1991-02-26)"}]},{"event_id":"4e7466cd1bf783d1","registry":"ARIN","report_date":"2021-12-13","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"146.183.0.0/16","start":"146.183.0.0","end":"146.183.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Whittaker Corporation","recipient_organization":"Outscale SASU","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:08:47+00:00","page":"https://rirtracker.com/ip/146.183.0.0-146.183.255.255/#e-4e7466cd1bf783d1","report_page":"https://rirtracker.com/arin/reports/2021-12-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.183.0.0-146.183.255.255.json","observed":"146.183.0.0/16 assigned on 2021-12-13, not listed on 2021-12-14","same_transfer_as":"0403a00ab33ba9c1","explanation":"ARIN's transfer log records a transfer from Whittaker Corporation (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 13:44 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211214.gz","retrieved_at":"2026-10-12T22:53:40+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 146.183.0.0/16 assigned on 2021-12-13, not listed on 2021-12-14"},{"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 2021-12-14 13:44 UTC, Whittaker Corporation (ARIN) to Outscale SASU (RIPE NCC); resources moved: 146.183.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211212.gz","retrieved_at":"2026-10-12T22:53:35+00:00","summary":"ARIN delegated statistics 2021-12-12 (produced 2021-12-12T14:00:13+00:00), before the report: assigned (dated 1991-02-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20211214.gz","retrieved_at":"2026-10-12T22:53:40+00:00","summary":"ARIN delegated statistics 2021-12-14 (produced 2021-12-14T14:00:13+00:00), after the report: not listed"}]},{"event_id":"3027c44dfa4686fa","registry":"ARIN","report_date":"2021-09-23","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"146.183.0.0/16","start":"146.183.0.0","end":"146.183.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Aptec Computer Systems, Inc.","recipient_organization":"Whittaker Corporation","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:57+00:00","page":"https://rirtracker.com/ip/146.183.0.0-146.183.255.255/#e-3027c44dfa4686fa","report_page":"https://rirtracker.com/arin/reports/2021-09-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.183.0.0-146.183.255.255.json","observed":"Merger/acquisition: Aptec Computer Systems, Inc. (ARIN) to Whittaker Corporation (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Aptec Computer Systems, Inc. (ARIN) to Whittaker Corporation (ARIN) on 2021-09-23 15:57 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 2021-09-23 15:57 UTC, Aptec Computer Systems, Inc. (ARIN) to Whittaker Corporation (ARIN); resources moved: 146.183.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210922.gz","retrieved_at":"2026-10-12T22:49:14+00:00","summary":"ARIN delegated statistics 2021-09-22 (produced 2021-09-22T14:00:14+00:00), before the report: assigned (dated 1991-02-26)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210924.gz","retrieved_at":"2026-10-12T22:49:28+00:00","summary":"ARIN delegated statistics 2021-09-24 (produced 2021-09-24T14:00:13+00:00), after the report: assigned (dated 1991-02-26)"}]}],"classification_history":{"0403a00ab33ba9c1":[{"raw_change_id":84440,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:56:08+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":84440,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:47+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":84440,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:10+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":84440,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:55+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"4e7466cd1bf783d1":[{"raw_change_id":421272,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:48:38+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Whittaker Corporation (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 13:44 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":421272,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:08+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Whittaker Corporation (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 13:44 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":421272,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:01+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Whittaker Corporation (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 13:44 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":421272,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:08:47+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Whittaker Corporation (ARIN) to Outscale SASU (RIPE NCC) on 2021-12-14 13:44 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}],"3027c44dfa4686fa":[{"raw_change_id":563883,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:57+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Aptec Computer Systems, Inc. (ARIN) to Whittaker Corporation (ARIN) on 2021-09-23 15:57 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."}]},"arin_statistics_now":{"status":"not listed"}}