{"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":"203.166.220.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/203.166.220.0-203.166.223.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2009-03-18)"},"current_holder":{"rir":"APNIC","org":"Nova Technology Development (Hong Kong) Limited","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":124552,"date":"2016-05-30T05:57:03Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"Nova Network Limited","recipient_org":"Nova Technology Development (Hong Kong) Limited","range":"203.166.220.0/22","log":"APNIC"}],"events":[{"event_id":"1becce658e0a3534","registry":"APNIC","report_date":"2016-05-30","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"203.166.220.0/22","start":"203.166.220.0","end":"203.166.223.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"Nova Network Limited","recipient_organization":"Nova Technology Development (Hong Kong) Limited","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:32+00:00","page":"https://rirtracker.com/ip/203.166.220.0-203.166.223.255/#e-1becce658e0a3534","report_page":"https://rirtracker.com/apnic/reports/2016-05-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/203.166.220.0-203.166.223.255.json","observed":"Transfer: Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC)","explanation":"APNIC's transfer log records a transfer from Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC) on 2016-05-30 05:57 UTC. The registration changed hands; it is not a new allocation from APNIC.","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 2016-05-30 05:57 UTC, Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC); resources moved: AS63981, 45.117.96.0/22, 103.29.140.0/22, 203.166.220.0/22"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160530.gz","retrieved_at":"2026-10-12T21:40:24+00:00","summary":"APNIC delegated statistics 2016-05-30, before the change: allocated (dated 2009-03-18)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160531.gz","retrieved_at":"2026-10-12T21:40:27+00:00","summary":"APNIC delegated statistics 2016-05-31, after the change: allocated (dated 2009-03-18)"}]},{"event_id":"80ea330c825510ad","registry":"APNIC","report_date":"2009-03-18","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"203.166.220.0/22","start":"203.166.220.0","end":"203.166.223.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:23+00:00","page":"https://rirtracker.com/ip/203.166.220.0-203.166.223.255/#e-80ea330c825510ad","report_page":"https://rirtracker.com/apnic/reports/2009-03-18/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/203.166.220.0-203.166.223.255.json","observed":"203.166.220.0/22 not listed on 2009-03-18, allocated on 2009-03-19","explanation":"No transfer record matches. APNIC's statistics show it not listed on 2009-03-18 and allocated (dated 2009-03-18) on 2009-03-19. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2009/delegated-apnic-extended-20090319.gz","retrieved_at":"2026-10-12T18:56:39+00:00","summary":"Found by comparing APNIC's daily statistics: 203.166.220.0/22 not listed on 2009-03-18, allocated on 2009-03-19"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2009/delegated-apnic-extended-20090318.gz","retrieved_at":"2026-10-12T18:56:36+00:00","summary":"APNIC delegated statistics 2009-03-18, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2009/delegated-apnic-extended-20090319.gz","retrieved_at":"2026-10-12T18:56:39+00:00","summary":"APNIC delegated statistics 2009-03-19, after the change: allocated (dated 2009-03-18)"}]}],"classification_history":{"1becce658e0a3534":[{"raw_change_id":33685,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:05+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC) on 2016-05-30 05:57 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":33685,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:49+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC) on 2016-05-30 05:57 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":33685,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:58+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC) on 2016-05-30 05:57 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":33685,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:32+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from Nova Network Limited (APNIC) to Nova Technology Development (Hong Kong) Limited (APNIC) on 2016-05-30 05:57 UTC. The registration changed hands; it is not a new allocation from APNIC."}],"80ea330c825510ad":[{"raw_change_id":210813,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T04:12:47+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2009-03-18 and allocated (dated 2009-03-18) on 2009-03-19. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":210813,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:47+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2009-03-18 and allocated (dated 2009-03-18) on 2009-03-19. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":210813,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:46+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2009-03-18 and allocated (dated 2009-03-18) on 2009-03-19. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."},{"raw_change_id":210813,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:23+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it not listed on 2009-03-18 and allocated (dated 2009-03-18) on 2009-03-19. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log."}]},"arin_statistics_now":{"status":"not listed"}}