{"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":"199.21.172.0/22","resource_type":"ipv4","page":"https://rirtracker.com/ip/199.21.172.0-199.21.175.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 2017-09-25)"},"current_holder":{"rir":"APNIC","org":"READYIDC CO., LTD.","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":129402,"date":"2024-05-29T01:31:31Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"Domo Digital Pty Ltd","recipient_org":"READYIDC CO., LTD.","range":"199.21.172.0/22","log":"APNIC"}],"events":[{"event_id":"55f1dbda20a5e456","registry":"APNIC","report_date":"2024-05-29","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"199.21.172.0/22","start":"199.21.172.0","end":"199.21.175.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-APNIC transfer","confidence":"CONFIRMED","source_rir":"APNIC","recipient_rir":"APNIC","source_organization":"Domo Digital Pty Ltd","recipient_organization":"READYIDC CO., LTD.","inventory_effect":"No effect on APNIC applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:51+00:00","page":"https://rirtracker.com/ip/199.21.172.0-199.21.175.255/#e-55f1dbda20a5e456","report_page":"https://rirtracker.com/apnic/reports/2024-05-29/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.21.172.0-199.21.175.255.json","observed":"Transfer: Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC)","explanation":"APNIC's transfer log records a transfer from Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC) on 2024-05-29 01:31 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 2024-05-29 01:31 UTC, Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC); resources moved: 199.21.172.0/22"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2024/delegated-apnic-extended-20240529.gz","retrieved_at":"2026-10-13T01:10:00+00:00","summary":"APNIC delegated statistics 2024-05-29, before the change: allocated (dated 2017-09-25)"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2024/delegated-apnic-extended-20240530.gz","retrieved_at":"2026-10-13T01:10:03+00:00","summary":"APNIC delegated statistics 2024-05-30, after the change: allocated (dated 2017-09-25)"}]},{"event_id":"09ad8358fd6229ce","registry":"APNIC","report_date":"2017-09-25","source":"statistics","raw_action":"ADDED","raw_line":null,"resource_type":"ipv4","resource":"199.21.172.0/22","start":"199.21.172.0","end":"199.21.175.255","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":"2026-10-14T00:06:06+00:00","page":"https://rirtracker.com/ip/199.21.172.0-199.21.175.255/#e-09ad8358fd6229ce","report_page":"https://rirtracker.com/apnic/reports/2017-09-25/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.21.172.0-199.21.175.255.json","observed":"199.21.172.0/22 available on 2017-09-25, allocated on 2017-09-26","explanation":"No transfer record matches. APNIC's statistics show it available on 2017-09-25 and allocated (dated 2017-09-25) on 2017-09-26. 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/2017/delegated-apnic-extended-20170926.gz","retrieved_at":"2026-10-12T22:12:56+00:00","summary":"Found by comparing APNIC's daily statistics: 199.21.172.0/22 available on 2017-09-25, allocated on 2017-09-26"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2017/delegated-apnic-extended-20170925.gz","retrieved_at":"2026-10-12T22:12:53+00:00","summary":"APNIC delegated statistics 2017-09-25, before the change: available"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2017/delegated-apnic-extended-20170926.gz","retrieved_at":"2026-10-12T22:12:56+00:00","summary":"APNIC delegated statistics 2017-09-26, after the change: allocated (dated 2017-09-25)"}]},{"event_id":"08545bf1da77c077","registry":"ARIN","report_date":"2012-02-15","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"199.21.172.0/22","start":"199.21.172.0","end":"199.21.175.255","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":"2026-10-13T23:56:58+00:00","page":"https://rirtracker.com/ip/199.21.172.0-199.21.175.255/#e-08545bf1da77c077","report_page":"https://rirtracker.com/arin/reports/2012-02-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.21.172.0-199.21.175.255.json","observed":"199.21.172.0/22 assigned on 2012-02-15, not listed on 2012-02-16","hold":{"hold_rule_source_url":"https://www.arin.net/resources/guide/request/#reissuing-returned-revoked-and-reclaimed-resources","hold_rule_days":60,"estimated_hold_end":"2012-04-15","availability_statement":"Possible reissue candidate after this date; not confirmed available"},"explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2010-08-11) on 2012-02-14 and not issued on 2012-02-16. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2012-04-15. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120216.gz","retrieved_at":"2026-10-12T19:31:58+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 199.21.172.0/22 assigned on 2012-02-15, not listed on 2012-02-16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120214.gz","retrieved_at":"2026-10-12T19:31:53+00:00","summary":"ARIN delegated statistics 2012-02-14, before the report: assigned (dated 2010-08-11)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120216.gz","retrieved_at":"2026-10-12T19:31:58+00:00","summary":"ARIN delegated statistics 2012-02-16, after the report: not issued"}]},{"event_id":"11bef3f30bcc1ce7","registry":"ARIN","report_date":"2010-08-11","source":"arin_issued","raw_action":"ADD","raw_line":"Add 199.21.172.0-199.21.175.255","resource_type":"ipv4","resource":"199.21.172.0/22","start":"199.21.172.0","end":"199.21.175.255","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 ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:49+00:00","page":"https://rirtracker.com/ip/199.21.172.0-199.21.175.255/#e-11bef3f30bcc1ce7","report_page":"https://rirtracker.com/arin/reports/2010-08-11/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/199.21.172.0-199.21.175.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-08-10 and assigned (dated 2010-08-11) on 2010-08-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2010-August/000604.html","retrieved_at":"2026-10-12T18:36:47+00:00","summary":"ARIN-Issued report for 2010-08-11: \"Add 199.21.172.0-199.21.175.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100810.gz","retrieved_at":"2026-10-12T19:08:50+00:00","summary":"ARIN delegated statistics 2010-08-10, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100812.gz","retrieved_at":"2026-10-12T19:08:54+00:00","summary":"ARIN delegated statistics 2010-08-12, after the report: assigned (dated 2010-08-11)"}]}],"classification_history":{"55f1dbda20a5e456":[{"raw_change_id":40915,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:38:09+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC) on 2024-05-29 01:31 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":40915,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:02:04+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC) on 2024-05-29 01:31 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":40915,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:15+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC) on 2024-05-29 01:31 UTC. The registration changed hands; it is not a new allocation from APNIC."},{"raw_change_id":40915,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:51+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from Domo Digital Pty Ltd (APNIC) to READYIDC CO., LTD. (APNIC) on 2024-05-29 01:31 UTC. The registration changed hands; it is not a new allocation from APNIC."}],"09ad8358fd6229ce":[{"raw_change_id":382126,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:32:27+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2017-09-25 and allocated (dated 2017-09-25) on 2017-09-26. 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":382126,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:17:55+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2017-09-25 and allocated (dated 2017-09-25) on 2017-09-26. 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":382126,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T15:01:39+00:00","current":0,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2017-09-25 and allocated (dated 2017-09-25) on 2017-09-26. 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":382126,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:06:06+00:00","current":1,"public_explanation":"No transfer record matches. APNIC's statistics show it available on 2017-09-25 and allocated (dated 2017-09-25) on 2017-09-26. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC."}],"08545bf1da77c077":[{"raw_change_id":237790,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:23:53+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2010-08-11) on 2012-02-14 and not issued on 2012-02-16. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2012-04-15. This does not confirm availability."},{"raw_change_id":237790,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:10:10+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2010-08-11) on 2012-02-14 and not issued on 2012-02-16. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2012-04-15. This does not confirm availability."},{"raw_change_id":237790,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:53:16+00:00","current":0,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2010-08-11) on 2012-02-14 and not issued on 2012-02-16. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the earliest estimated hold expiration is 2012-04-15. This does not confirm availability."},{"raw_change_id":237790,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:56:58+00:00","current":1,"public_explanation":"Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2010-08-11) on 2012-02-14 and not issued on 2012-02-16. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2012-04-15. This does not confirm availability."}],"11bef3f30bcc1ce7":[{"raw_change_id":121673,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:12:28+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-08-10 and assigned (dated 2010-08-11) on 2010-08-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":121673,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:17+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-08-10 and assigned (dated 2010-08-11) on 2010-08-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":121673,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:50+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-08-10 and assigned (dated 2010-08-11) on 2010-08-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":121673,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:49+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2010-08-10 and assigned (dated 2010-08-11) on 2010-08-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"not listed"}}