{"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":"146.88.18.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/146.88.18.0-146.88.18.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1991-01-28)"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":5473,"date":"2014-05-16T15:26:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"National Radio Astronomy Observatory","recipient_org":null,"range":"146.88.18.0/24","log":"ARIN"},{"id":124003,"date":"2014-05-16T07:04:30Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"NRAO-2","recipient_org":"CAMPAIGN MONITOR PTY LTD","range":"146.88.18.0/24","log":"APNIC"}],"events":[{"event_id":"8081bfb9777cee1d","registry":"ARIN","report_date":"2014-05-16","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"146.88.18.0/24","start":"146.88.18.0","end":"146.88.18.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"National Radio Astronomy Observatory","recipient_organization":null,"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":"2026-10-14T00:18:22+00:00","page":"https://rirtracker.com/ip/146.88.18.0-146.88.18.255/#e-8081bfb9777cee1d","report_page":"https://rirtracker.com/arin/reports/2014-05-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.88.18.0-146.88.18.255.json","observed":"Transfer: National Radio Astronomy Observatory (ARIN) to (no name) (APNIC)","piece_of":{"resource":"146.88.0.0/16","page":"https://rirtracker.com/ip/146.88.0.0-146.88.255.255/"},"same_transfer_as":"4b39ac6e88ea3db9","explanation":"ARIN's transfer log records a transfer from National Radio Astronomy Observatory (ARIN) to an unnamed organization (APNIC) on 2014-05-16 15:26 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants.","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: RESOURCE_TRANSFER on 2014-05-16 15:26 UTC, National Radio Astronomy Observatory (ARIN) to (no name) (APNIC); resources moved: 146.88.18.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140515.gz","retrieved_at":"2026-10-12T20:16:11+00:00","summary":"ARIN delegated statistics 2014-05-15 (produced 2014-05-15T05:04:29+00:00), before the report: assigned (dated 1991-01-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140517.gz","retrieved_at":"2026-10-12T20:16:21+00:00","summary":"ARIN delegated statistics 2014-05-17 (produced 2014-05-17T05:05:00+00:00), after the report: not listed"}]},{"event_id":"4b39ac6e88ea3db9","registry":"APNIC","report_date":"2014-05-16","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"146.88.18.0/24","start":"146.88.18.0","end":"146.88.18.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"NRAO-2","recipient_organization":"CAMPAIGN MONITOR PTY LTD","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:30+00:00","page":"https://rirtracker.com/ip/146.88.18.0-146.88.18.255/#e-4b39ac6e88ea3db9","report_page":"https://rirtracker.com/apnic/reports/2014-05-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/146.88.18.0-146.88.18.255.json","observed":"Transfer: NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC)","same_transfer_as":"8081bfb9777cee1d","explanation":"APNIC's transfer log records a transfer from NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2014-05-16 07:04 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"transfer","url":"https://ftp.apnic.net/stats/apnic/transfers/transfers_latest.json","retrieved_at":"2026-10-13T18:17:16+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2014-05-16 07:04 UTC, NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC); resources moved: 146.88.18.0/24, 146.88.28.0/24"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2014/delegated-apnic-extended-20140516.gz","retrieved_at":"2026-10-12T20:53:48+00:00","summary":"APNIC delegated statistics 2014-05-16, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2014/delegated-apnic-extended-20140517.gz","retrieved_at":"2026-10-12T20:53:51+00:00","summary":"APNIC delegated statistics 2014-05-17, after the change: allocated (dated 1991-01-28)"}]}],"classification_history":{"8081bfb9777cee1d":[{"raw_change_id":549223,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:22+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from National Radio Astronomy Observatory (ARIN) to an unnamed organization (APNIC) on 2014-05-16 15:26 UTC: it left ARIN for APNIC. It is not a new allocation and is not offered to ARIN applicants."}],"4b39ac6e88ea3db9":[{"raw_change_id":32471,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:34:33+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2014-05-16 07:04 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":32471,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:46+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2014-05-16 07:04 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":32471,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:55+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2014-05-16 07:04 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":32471,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:30+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from NRAO-2 (ARIN) to CAMPAIGN MONITOR PTY LTD (APNIC) on 2014-05-16 07:04 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}