{"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":"209.16.156.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/209.16.156.0-209.16.156.255/","statistics_now":{"registry":"RIPE NCC","status":"assigned (dated 1997-01-31)"},"current_holder":{"rir":"RIPE NCC","org":"Cygnet Health Care Limited","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":75780,"date":"2021-01-20T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Cygnet Health Care Ltd","range":"209.16.156.0/24","log":"RIPE NCC"},{"id":22629,"date":"2021-01-20T17:40:16Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"Cortland Electronics Corp.","recipient_org":"Cygnet Health Care Limited","range":"209.16.156.0/24","log":"ARIN"}],"events":[{"event_id":"bee62539826cab48","registry":"ARIN","report_date":"2021-01-20","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"209.16.156.0/24","start":"209.16.156.0","end":"209.16.156.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"Cortland Electronics Corp.","recipient_organization":"Cygnet Health Care Limited","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":"2026-10-14T00:07:50+00:00","page":"https://rirtracker.com/ip/209.16.156.0-209.16.156.255/#e-bee62539826cab48","report_page":"https://rirtracker.com/arin/reports/2021-01-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.16.156.0-209.16.156.255.json","observed":"209.16.156.0/24 allocated on 2021-01-20, not listed on 2021-01-21","same_transfer_as":"6db272f7024b45f2","explanation":"ARIN's transfer log records a transfer from Cortland Electronics Corp. (ARIN) to Cygnet Health Care Limited (RIPE NCC) on 2021-01-20 17:40 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-20210121.gz","retrieved_at":"2026-10-12T22:37:00+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 209.16.156.0/24 allocated on 2021-01-20, not listed on 2021-01-21"},{"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 2021-01-20 17:40 UTC, Cortland Electronics Corp. (ARIN) to Cygnet Health Care Limited (RIPE NCC); resources moved: 209.16.156.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210119.gz","retrieved_at":"2026-10-12T22:36:55+00:00","summary":"ARIN delegated statistics 2021-01-19 (produced 2021-01-19T15:00:14+00:00), before the report: allocated (dated 1997-01-31)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210121.gz","retrieved_at":"2026-10-12T22:37:00+00:00","summary":"ARIN delegated statistics 2021-01-21 (produced 2021-01-21T15:00:14+00:00), after the report: not listed"}]},{"event_id":"6db272f7024b45f2","registry":"RIPE NCC","report_date":"2021-01-20","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"209.16.156.0/24","start":"209.16.156.0","end":"209.16.156.255","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":"Cygnet Health Care Ltd","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":"2026-10-13T23:48:29+00:00","page":"https://rirtracker.com/ip/209.16.156.0-209.16.156.255/#e-6db272f7024b45f2","report_page":"https://rirtracker.com/ripe/reports/2021-01-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.16.156.0-209.16.156.255.json","observed":"Transfer: (no name) (ARIN) to Cygnet Health Care Ltd (RIPE NCC)","same_transfer_as":"bee62539826cab48","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Cygnet Health Care Ltd (RIPE NCC) on 2021-01-20 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 2021-01-20 19:00 UTC, (no name) (ARIN) to Cygnet Health Care Ltd (RIPE NCC); resources moved: 209.16.156.0/24"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210119.bz2","retrieved_at":"2026-10-12T22:59:26+00:00","summary":"RIPE NCC delegated statistics 2021-01-19 (produced 2021-01-19T22:59:00+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210120.bz2","retrieved_at":"2026-10-12T22:59:29+00:00","summary":"RIPE NCC delegated statistics 2021-01-20 (produced 2021-01-20T22:59:00+00:00), after the change: assigned (dated 1997-01-31)"}]}],"classification_history":{"bee62539826cab48":[{"raw_change_id":407521,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:43:25+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Cortland Electronics Corp. (ARIN) to Cygnet Health Care Limited (RIPE NCC) on 2021-01-20 17:40 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":407521,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:19:21+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Cortland Electronics Corp. (ARIN) to Cygnet Health Care Limited (RIPE NCC) on 2021-01-20 17:40 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":407521,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:03:10+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Cortland Electronics Corp. (ARIN) to Cygnet Health Care Limited (RIPE NCC) on 2021-01-20 17:40 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":407521,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:07:50+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Cortland Electronics Corp. (ARIN) to Cygnet Health Care Limited (RIPE NCC) on 2021-01-20 17:40 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."}],"6db272f7024b45f2":[{"raw_change_id":75689,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:52:42+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Cygnet Health Care Ltd (RIPE NCC) on 2021-01-20 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":75689,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:26+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Cygnet Health Care Ltd (RIPE NCC) on 2021-01-20 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":75689,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:46+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Cygnet Health Care Ltd (RIPE NCC) on 2021-01-20 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":75689,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:48:29+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Cygnet Health Care Ltd (RIPE NCC) on 2021-01-20 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."}]},"arin_statistics_now":{"status":"not listed"}}