{"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":"103.243.128.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/103.243.128.0-103.243.131.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2013-10-11)"},"current_holder":{"rir":"APNIC","org":"DingFeng XinHui (HongKong) Technology Limited","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":127317,"date":"2021-06-29T03:28:16Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"HONGKONG YUN WANG INTERNATIONAL LIMITED","recipient_org":"DingFeng XinHui (HongKong) Technology Limited","range":"103.243.128.0/22","log":"APNIC"}],"events":[{"event_id":"a5f04a32f61eed1c","registry":"APNIC","report_date":"2021-06-29","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"103.243.128.0/22","start":"103.243.128.0","end":"103.243.131.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"HONGKONG YUN WANG INTERNATIONAL LIMITED","recipient_organization":"DingFeng XinHui (HongKong) Technology Limited","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:42+00:00","page":"https://rirtracker.com/ip/103.243.128.0-103.243.131.255/#e-a5f04a32f61eed1c","report_page":"https://rirtracker.com/apnic/reports/2021-06-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.243.128.0-103.243.131.255.json","observed":"Transfer: HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC)","explanation":"APNIC's transfer log records a transfer from HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC) on 2021-06-29 03:28 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 2021-06-29 03:28 UTC, HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC); resources moved: 103.243.128.0/22, 117.18.224.0/22"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210629.gz","retrieved_at":"2026-10-12T23:47:50+00:00","summary":"APNIC delegated statistics 2021-06-29, before the change: assigned (dated 2013-10-11)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210630.gz","retrieved_at":"2026-10-12T23:47:54+00:00","summary":"APNIC delegated statistics 2021-06-30, after the change: allocated (dated 2013-10-11)"}]},{"event_id":"3e4107f14c134f48","registry":"APNIC","report_date":"2016-02-15","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"103.243.128.0/22","start":"103.243.128.0","end":"103.243.131.255","classification":"RESTORED","classification_label":"Restored to the same holder","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:24+00:00","page":"https://rirtracker.com/ip/103.243.128.0-103.243.131.255/#e-3e4107f14c134f48","report_page":"https://rirtracker.com/apnic/reports/2016-02-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.243.128.0-103.243.131.255.json","observed":"103.243.128.0/22 reserved on 2016-02-15, assigned on 2016-02-16","explanation":"No transfer record matches. APNIC's statistics show it reserved on 2016-02-15 and assigned (dated 2013-10-11) on 2016-02-16. The tracker saw it removed from registration on 2015-12-31 (46 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160216.gz","retrieved_at":"2026-10-12T21:33:42+00:00","summary":"Found by comparing APNIC's daily statistics: 103.243.128.0/22 reserved on 2016-02-15, assigned on 2016-02-16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160215.gz","retrieved_at":"2026-10-12T21:33:39+00:00","summary":"APNIC delegated statistics 2016-02-15, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160216.gz","retrieved_at":"2026-10-12T21:33:42+00:00","summary":"APNIC delegated statistics 2016-02-16, after the change: assigned (dated 2013-10-11)"}]},{"event_id":"86cb3d8b445a4892","registry":"APNIC","report_date":"2015-12-31","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"103.243.128.0/22","start":"103.243.128.0","end":"103.243.131.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Possible future reissue candidate after hold","inventory_effect_code":"HOLD_CANDIDATE","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:15+00:00","page":"https://rirtracker.com/ip/103.243.128.0-103.243.131.255/#e-86cb3d8b445a4892","report_page":"https://rirtracker.com/apnic/reports/2015-12-31/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.243.128.0-103.243.131.255.json","observed":"103.243.128.0/22 assigned on 2015-12-30, reserved on 2016-01-01","hold":{"hold_rule_source_url":"https://www.apnic.net/manage-ip/manage-resources/address-status","hold_rule_months":12,"estimated_hold_end":"2016-12-31","availability_statement":"Possible reissue candidate after this date; not confirmed available","hold_rule_observed":true},"explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2013-10-11) on 2015-12-30 and reserved on 2016-01-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned IPv4 space a year after the removal or later since 2014, so the tracker estimates the hold ends on 2016-12-31. That is what APNIC has done, not a rule it states. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160101.gz","retrieved_at":"2026-10-12T21:30:48+00:00","summary":"Found by comparing APNIC's daily statistics: 103.243.128.0/22 assigned on 2015-12-30, reserved on 2016-01-01"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2015/delegated-apnic-extended-20151230.gz","retrieved_at":"2026-10-12T21:30:42+00:00","summary":"APNIC delegated statistics 2015-12-30, before the change: assigned (dated 2013-10-11)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160101.gz","retrieved_at":"2026-10-12T21:30:48+00:00","summary":"APNIC delegated statistics 2016-01-01, after the change: reserved"}]},{"event_id":"8b05acdffae831b8","registry":"APNIC","report_date":"2013-10-11","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"103.243.128.0/22","start":"103.243.128.0","end":"103.243.131.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from APNIC-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:00:05+00:00","page":"https://rirtracker.com/ip/103.243.128.0-103.243.131.255/#e-8b05acdffae831b8","report_page":"https://rirtracker.com/apnic/reports/2013-10-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.243.128.0-103.243.131.255.json","observed":"103.243.128.0/22 available on 2013-10-11, assigned on 2013-10-12","explanation":"No transfer record matches. APNIC's statistics show it available on 2013-10-11 and assigned (dated 2013-10-11) on 2013-10-12. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2013/delegated-apnic-extended-20131012.gz","retrieved_at":"2026-10-12T20:41:13+00:00","summary":"Found by comparing APNIC's daily statistics: 103.243.128.0/22 available on 2013-10-11, assigned on 2013-10-12"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2013/delegated-apnic-extended-20131011.gz","retrieved_at":"2026-10-12T20:41:10+00:00","summary":"APNIC delegated statistics 2013-10-11, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2013/delegated-apnic-extended-20131012.gz","retrieved_at":"2026-10-12T20:41:13+00:00","summary":"APNIC delegated statistics 2013-10-12, after the change: assigned (dated 2013-10-11)"}]}],"classification_history":{"a5f04a32f61eed1c":[{"raw_change_id":37812,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:36:49+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC) on 2021-06-29 03:28 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":37812,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:57+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC) on 2021-06-29 03:28 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":37812,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:07+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC) on 2021-06-29 03:28 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":37812,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:42+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from HONGKONG YUN WANG INTERNATIONAL LIMITED (APNIC) to DingFeng XinHui (HongKong) Technology Limited (APNIC) on 2021-06-29 03:28 UTC. The registration changed hands; it is not a new allocation from APNIC."}],"3e4107f14c134f48":[{"raw_change_id":340194,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:14:47+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it reserved on 2016-02-15 and assigned (dated 2013-10-11) on 2016-02-16. The tracker saw it removed from registration on 2015-12-31 (46 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":340194,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:42+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it reserved on 2016-02-15 and assigned (dated 2013-10-11) on 2016-02-16. The tracker saw it removed from registration on 2015-12-31 (46 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":340194,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:14+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it reserved on 2016-02-15 and assigned (dated 2013-10-11) on 2016-02-16. The tracker saw it removed from registration on 2015-12-31 (46 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."},{"raw_change_id":340194,"classification_code":"RESTORED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:24+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it reserved on 2016-02-15 and assigned (dated 2013-10-11) on 2016-02-16. The tracker saw it removed from registration on 2015-12-31 (46 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction."}],"86cb3d8b445a4892":[{"raw_change_id":337713,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:13:32+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2013-10-11) on 2015-12-30 and reserved on 2016-01-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned IPv4 space before reissuing it, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":337713,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:15:34+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2013-10-11) on 2015-12-30 and reserved on 2016-01-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned IPv4 space before reissuing it, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":337713,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:59:06+00:00","current":0,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2013-10-11) on 2015-12-30 and reserved on 2016-01-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no fixed period for which it holds returned IPv4 space before reissuing it, so the tracker gives no estimate. This does not confirm availability."},{"raw_change_id":337713,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:03:15+00:00","current":1,"public_explanation":"Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2013-10-11) on 2015-12-30 and reserved on 2016-01-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned IPv4 space a year after the removal or later since 2014, so the tracker estimates the hold ends on 2016-12-31. That is what APNIC has done, not a rule it states. This does not confirm availability."}],"8b05acdffae831b8":[{"raw_change_id":289656,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:51:28+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2013-10-11 and assigned (dated 2013-10-11) on 2013-10-12. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC."},{"raw_change_id":289656,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:12:52+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2013-10-11 and assigned (dated 2013-10-11) on 2013-10-12. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC."},{"raw_change_id":289656,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:56:12+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2013-10-11 and assigned (dated 2013-10-11) on 2013-10-12. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC."},{"raw_change_id":289656,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:00:05+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2013-10-11 and assigned (dated 2013-10-11) on 2013-10-12. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC."}]},"arin_statistics_now":{"status":"not listed"}}