{"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":"161.38.0.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/161.38.0.0-161.38.7.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1992-05-14)"},"current_holder":{"rir":"RIPE NCC","org":"ADJENET NETWORKS SL","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":75849,"date":"2021-01-26T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"ADJENET NETWORKS SL","range":"161.38.0.0/21","log":"RIPE NCC"},{"id":22674,"date":"2021-01-26T12:18:36Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"The Arts Institutes International, LLC","recipient_org":"Adjenet Networks SL","range":"161.38.0.0/21","log":"ARIN"},{"id":18631,"date":"2019-08-15T04:55:03Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The Art Institutes International","recipient_org":"The Arts Institutes International LLC","range":"161.38.0.0/16","log":"ARIN"}],"events":[{"event_id":"4fb235fdfec1b014","registry":"RIPE NCC","report_date":"2021-01-26","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"161.38.0.0/21","start":"161.38.0.0","end":"161.38.7.255","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":"ADJENET NETWORKS SL","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/161.38.0.0-161.38.7.255/#e-4fb235fdfec1b014","report_page":"https://rirtracker.com/ripe/reports/2021-01-26/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.38.0.0-161.38.7.255.json","observed":"Transfer: (no name) (ARIN) to ADJENET NETWORKS SL (RIPE NCC)","same_transfer_as":"42cc25df7a8e7b94","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to ADJENET NETWORKS SL (RIPE NCC) on 2021-01-26 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 2021-01-26 19:00 UTC, (no name) (ARIN) to ADJENET NETWORKS SL (RIPE NCC); resources moved: 161.38.0.0/21"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210125.bz2","retrieved_at":"2026-10-12T22:59:44+00:00","summary":"RIPE NCC delegated statistics 2021-01-25 (produced 2021-01-25T22:59:00+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2021/delegated-ripencc-extended-20210126.bz2","retrieved_at":"2026-10-12T22:59:47+00:00","summary":"RIPE NCC delegated statistics 2021-01-26 (produced 2021-01-26T22:59:00+00:00), after the change: assigned (dated 1992-05-14)"}]},{"event_id":"42cc25df7a8e7b94","registry":"ARIN","report_date":"2021-01-25","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"161.38.0.0/21","start":"161.38.0.0","end":"161.38.7.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"The Arts Institutes International, LLC","recipient_organization":"Adjenet Networks SL","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/161.38.0.0-161.38.7.255/#e-42cc25df7a8e7b94","report_page":"https://rirtracker.com/arin/reports/2021-01-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/161.38.0.0-161.38.7.255.json","observed":"161.38.0.0/21 assigned on 2021-01-25, not listed on 2021-01-26","same_transfer_as":"4fb235fdfec1b014","explanation":"ARIN's transfer log records a transfer from The Arts Institutes International, LLC (ARIN) to Adjenet Networks SL (RIPE NCC) on 2021-01-26 12:18 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-20210126.gz","retrieved_at":"2026-10-12T22:37:13+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 161.38.0.0/21 assigned on 2021-01-25, not listed on 2021-01-26"},{"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 2021-01-26 12:18 UTC, The Arts Institutes International, LLC (ARIN) to Adjenet Networks SL (RIPE NCC); resources moved: 161.38.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210124.gz","retrieved_at":"2026-10-12T22:37:08+00:00","summary":"ARIN delegated statistics 2021-01-24 (produced 2021-01-24T15:00:13+00:00), before the report: assigned (dated 1992-05-14)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210126.gz","retrieved_at":"2026-10-12T22:37:13+00:00","summary":"ARIN delegated statistics 2021-01-26 (produced 2021-01-26T15:00:13+00:00), after the report: not listed"}]}],"classification_history":{"4fb235fdfec1b014":[{"raw_change_id":75758,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:52:43+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to ADJENET NETWORKS SL (RIPE NCC) on 2021-01-26 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":75758,"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 ADJENET NETWORKS SL (RIPE NCC) on 2021-01-26 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":75758,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:45:47+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to ADJENET NETWORKS SL (RIPE NCC) on 2021-01-26 19:00 UTC: it came to the RIPE NCC from ARIN. 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ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":407523,"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 The Arts Institutes International, LLC (ARIN) to Adjenet Networks SL (RIPE NCC) on 2021-01-26 12:18 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":407523,"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 The Arts Institutes International, LLC (ARIN) to Adjenet Networks SL (RIPE NCC) on 2021-01-26 12:18 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":407523,"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 The Arts Institutes International, LLC (ARIN) to Adjenet Networks SL (RIPE NCC) on 2021-01-26 12:18 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."}]},"arin_statistics_now":{"status":"not listed"}}