{"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":"103.146.48.0/23","resource_type":"ipv4","page":"https://rirtracker.com/ip/103.146.48.0-103.146.49.255/","statistics_now":{"registry":"APNIC","status":"available"},"current_holder":{"rir":"APNIC","org":null,"how":"APNIC's latest statistics"},"rdap_snapshots":[],"transfers":[],"events":[{"event_id":"a3b51961615664fc","registry":"APNIC","report_date":"2026-02-18","source":"statistics","raw_action":"RELEASED","raw_line":null,"resource_type":"ipv4","resource":"103.146.48.0/23","start":"103.146.48.0","end":"103.146.49.255","classification":"HOLD_RELEASED","classification_label":"Released from hold (APNIC lists it as 'available')","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"APNIC's statistics now list it as 'available'; reissue not confirmed","inventory_effect_code":"RELEASED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:05+00:00","page":"https://rirtracker.com/ip/103.146.48.0-103.146.49.255/#e-a3b51961615664fc","report_page":"https://rirtracker.com/apnic/reports/2026-02-18/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.146.48.0-103.146.49.255.json","observed":"103.146.48.0/23 reserved on 2026-02-18, available on 2026-02-19","explanation":"APNIC's statistics show it reserved on 2026-02-18 and available on 2026-02-19. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-02-17, 366 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed.","evidence":[{"type":"statistics_diff","url":"https://ftp.apnic.net/stats/apnic/2026/delegated-apnic-extended-20260219.gz","retrieved_at":"2026-10-12T16:17:44+00:00","summary":"Found by comparing APNIC's daily statistics: 103.146.48.0/23 reserved on 2026-02-18, available on 2026-02-19"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2026/delegated-apnic-extended-20260218.gz","retrieved_at":"2026-10-12T16:17:40+00:00","summary":"APNIC delegated statistics 2026-02-18, before the change: reserved"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2026/delegated-apnic-extended-20260219.gz","retrieved_at":"2026-10-12T16:17:44+00:00","summary":"APNIC delegated statistics 2026-02-19, after the change: available"}]},{"event_id":"a9d7baaa80aae74b","registry":"APNIC","report_date":"2025-02-17","source":"statistics","raw_action":"REMOVED","raw_line":null,"resource_type":"ipv4","resource":"103.146.48.0/23","start":"103.146.48.0","end":"103.146.49.255","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":"2026-10-14T00:17:51+00:00","page":"https://rirtracker.com/ip/103.146.48.0-103.146.49.255/#e-a9d7baaa80aae74b","report_page":"https://rirtracker.com/apnic/reports/2025-02-17/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.146.48.0-103.146.49.255.json","observed":"103.146.48.0/23 allocated on 2025-02-17, reserved on 2025-02-18","hold":{"hold_rule_source_url":"https://www.apnic.net/manage-ip/manage-resources/address-status","hold_rule_months":12,"estimated_hold_end":"2026-02-17","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 allocated (dated 2019-12-05) on 2025-02-17 and reserved on 2025-02-18. 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 2026-02-17. 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/2025/delegated-apnic-extended-20250218.gz","retrieved_at":"2026-10-13T01:30:16+00:00","summary":"Found by comparing APNIC's daily statistics: 103.146.48.0/23 allocated on 2025-02-17, reserved on 2025-02-18"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250217.gz","retrieved_at":"2026-10-13T01:30:12+00:00","summary":"APNIC delegated statistics 2025-02-17, before the change: allocated (dated 2019-12-05)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2025/delegated-apnic-extended-20250218.gz","retrieved_at":"2026-10-13T01:30:16+00:00","summary":"APNIC delegated statistics 2025-02-18, after the change: reserved"}]},{"event_id":"39b32eb083e85e1f","registry":"APNIC","report_date":"2019-12-05","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"103.146.48.0/23","start":"103.146.48.0","end":"103.146.49.255","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":"2026-10-14T00:09:42+00:00","page":"https://rirtracker.com/ip/103.146.48.0-103.146.49.255/#e-39b32eb083e85e1f","report_page":"https://rirtracker.com/apnic/reports/2019-12-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/103.146.48.0-103.146.49.255.json","observed":"103.146.48.0/23 available on 2019-12-05, allocated on 2019-12-06","explanation":"No transfer record matches. APNIC's statistics show it available on 2019-12-05 and allocated (dated 2019-12-05) on 2019-12-06. 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/2019/delegated-apnic-extended-20191206.gz","retrieved_at":"2026-10-12T23:07:46+00:00","summary":"Found by comparing APNIC's daily statistics: 103.146.48.0/23 available on 2019-12-05, allocated on 2019-12-06"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20191205.gz","retrieved_at":"2026-10-12T23:07:42+00:00","summary":"APNIC delegated statistics 2019-12-05, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20191206.gz","retrieved_at":"2026-10-12T23:07:46+00:00","summary":"APNIC delegated statistics 2019-12-06, after the change: allocated (dated 2019-12-05)"}]}],"classification_history":{"a3b51961615664fc":[{"raw_change_id":23449,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.2.0","classified_at":"2026-10-12T17:43:12+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-02-18 and available on 2026-02-19. APNIC moved it from its reserved (held) records to the status it calls 'available'. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":23449,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-12T18:23:07+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-02-18 and available on 2026-02-19. APNIC moved it from its reserved (held) records to the status it calls 'available'. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":23449,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:25+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-02-18 and available on 2026-02-19. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-02-17, 366 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":23449,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:32+00:00","current":0,"public_explanation":"APNIC's statistics show it reserved on 2026-02-18 and available on 2026-02-19. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-02-17, 366 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."},{"raw_change_id":23449,"classification_code":"HOLD_RELEASED","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:05+00:00","current":1,"public_explanation":"APNIC's statistics show it reserved on 2026-02-18 and available on 2026-02-19. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-02-17, 366 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed."}],"a9d7baaa80aae74b":[{"raw_change_id":539107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T06:43:49+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 allocated (dated 2019-12-05) on 2025-02-17 and reserved on 2025-02-18. 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":539107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:27:25+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 allocated (dated 2019-12-05) on 2025-02-17 and reserved on 2025-02-18. 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":539107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:11:50+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 allocated (dated 2019-12-05) on 2025-02-17 and reserved on 2025-02-18. 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":539107,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:17:51+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 allocated (dated 2019-12-05) on 2025-02-17 and reserved on 2025-02-18. 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 2026-02-17. That is what APNIC has done, not a rule it states. This does not confirm availability."}],"39b32eb083e85e1f":[{"raw_change_id":433412,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:53:33+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2019-12-05 and allocated (dated 2019-12-05) on 2019-12-06. 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":433412,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:54+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2019-12-05 and allocated (dated 2019-12-05) on 2019-12-06. 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":433412,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:51+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2019-12-05 and allocated (dated 2019-12-05) on 2019-12-06. 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":433412,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:42+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2019-12-05 and allocated (dated 2019-12-05) on 2019-12-06. 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"}}