{"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":"134.73.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/134.73.0.0-134.73.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2024-08-14)"},"current_holder":{"rir":"ARIN","org":"Amazon.com, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":36366,"date":"2024-08-14T16:06:53Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"LayerHost","recipient_org":"Amazon.com, Inc.","range":"134.73.0.0/16","log":"ARIN"},{"id":20470,"date":"2020-04-20T21:11:16Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Global Frag Networks","recipient_org":"Global Frag Networks","range":"134.73.0.0/16","log":"ARIN"}],"events":[{"event_id":"36e171c95e40544e","registry":"ARIN","report_date":"2024-08-14","source":"arin_issued","raw_action":"ADD","raw_line":"Add 134.73.0.0-134.73.255.255","resource_type":"ipv4","resource":"134.73.0.0/16","start":"134.73.0.0","end":"134.73.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"LayerHost","recipient_organization":"Amazon.com, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:09+00:00","page":"https://rirtracker.com/ip/134.73.0.0-134.73.255.255/#e-36e171c95e40544e","report_page":"https://rirtracker.com/arin/reports/2024-08-14/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/134.73.0.0-134.73.255.255.json","explanation":"ARIN's transfer log records a transfer from LayerHost (ARIN) to Amazon.com, Inc. (ARIN) on 2024-08-14 16:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2024-August/005723.html","retrieved_at":"2026-10-12T18:42:42+00:00","summary":"ARIN-Issued report for 2024-08-14: \"Add 134.73.0.0-134.73.255.255\""},{"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 2024-08-14 16:06 UTC, LayerHost (ARIN) to Amazon.com, Inc. (ARIN); resources moved: 134.73.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240813.gz","retrieved_at":"2026-10-12T23:44:58+00:00","summary":"ARIN delegated statistics 2024-08-13 (produced 2024-08-13T13:00:52+00:00), before the report: allocated (dated 2017-09-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2024/delegated-arin-extended-20240815.gz","retrieved_at":"2026-10-12T23:45:03+00:00","summary":"ARIN delegated statistics 2024-08-15 (produced 2024-08-15T13:00:50+00:00), after the report: allocated (dated 2024-08-14)"}]},{"event_id":"c1506d034da190a6","registry":"ARIN","report_date":"2020-04-20","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"134.73.0.0/16","start":"134.73.0.0","end":"134.73.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Global Frag Networks","recipient_organization":"Global Frag Networks","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:49+00:00","page":"https://rirtracker.com/ip/134.73.0.0-134.73.255.255/#e-c1506d034da190a6","report_page":"https://rirtracker.com/arin/reports/2020-04-20/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/134.73.0.0-134.73.255.255.json","observed":"Merger/acquisition: Global Frag Networks (ARIN) to Global Frag Networks (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Global Frag Networks (ARIN) to Global Frag Networks (ARIN) on 2020-04-20 21:11 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","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: MERGER_ACQUISITION on 2020-04-20 21:11 UTC, Global Frag Networks (ARIN) to Global Frag Networks (ARIN); resources moved: 134.73.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200418.gz","retrieved_at":"2026-10-12T22:22:36+00:00","summary":"ARIN delegated statistics 2020-04-18 (produced 2020-04-18T14:00:13+00:00), before the report: allocated (dated 2017-09-08)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200421.gz","retrieved_at":"2026-10-12T22:22:44+00:00","summary":"ARIN delegated statistics 2020-04-21 (produced 2020-04-21T14:00:13+00:00), after the report: allocated (dated 2017-09-08)"}]},{"event_id":"2d5010aeb73cbfca","registry":"ARIN","report_date":"2017-09-08","source":"arin_issued","raw_action":"ADD","raw_line":"Add 134.73.0.0-134.73.255.255","resource_type":"ipv4","resource":"134.73.0.0/16","start":"134.73.0.0","end":"134.73.255.255","classification":"APPARENT_REISSUANCE","classification_label":"Apparent reissuance of previously removed resource","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":"2026-10-13T23:51:56+00:00","page":"https://rirtracker.com/ip/134.73.0.0-134.73.255.255/#e-2d5010aeb73cbfca","report_page":"https://rirtracker.com/arin/reports/2017-09-08/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/134.73.0.0-134.73.255.255.json","explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-09-07 and allocated (dated 2017-09-08) on 2017-09-09. The tracker saw this range released from hold on 2011-07-19 (134.73.0.0-134.73.255.255), so it appears to have been issued again from ARIN's pool.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2017-September/003194.html","retrieved_at":"2026-10-12T18:39:46+00:00","summary":"ARIN-Issued report for 2017-09-08: \"Add 134.73.0.0-134.73.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170907.gz","retrieved_at":"2026-10-12T21:33:58+00:00","summary":"ARIN delegated statistics 2017-09-07 (produced 2017-09-07T05:11:46+00:00), before the report: reserved"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170909.gz","retrieved_at":"2026-10-12T21:34:03+00:00","summary":"ARIN delegated statistics 2017-09-09 (produced 2017-09-09T05:10:54+00:00), after the report: allocated (dated 2017-09-08)"}]},{"event_id":"51412d5a45ef9084","registry":"ARIN","report_date":"2011-07-19","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 134.73.0.0-134.73.255.255","resource_type":"ipv4","resource":"134.73.0.0/16","start":"134.73.0.0","end":"134.73.255.255","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":"2026-10-13T23:50:55+00:00","page":"https://rirtracker.com/ip/134.73.0.0-134.73.255.255/#e-51412d5a45ef9084","report_page":"https://rirtracker.com/arin/reports/2011-07-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/134.73.0.0-134.73.255.255.json","explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2011-07-18 and not issued on 2011-07-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2011-July/000949.html","retrieved_at":"2026-10-12T18:37:10+00:00","summary":"ARIN-Issued report for 2011-07-19: \"Remove 134.73.0.0-134.73.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110718.gz","retrieved_at":"2026-10-12T19:22:49+00:00","summary":"ARIN delegated statistics 2011-07-18, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110720.gz","retrieved_at":"2026-10-12T19:22:53+00:00","summary":"ARIN delegated statistics 2011-07-20, after the report: not issued"}]},{"event_id":"309507a2bfa357aa","registry":"ARIN","report_date":"2011-01-12","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"134.73.0.0/16","start":"134.73.0.0","end":"134.73.255.255","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":"2026-10-13T23:56:15+00:00","page":"https://rirtracker.com/ip/134.73.0.0-134.73.255.255/#e-309507a2bfa357aa","report_page":"https://rirtracker.com/arin/reports/2011-01-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/134.73.0.0-134.73.255.255.json","observed":"134.73.0.0/16 assigned on 2011-01-12, not listed on 2011-01-13","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":"2011-03-13","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 1989-05-10) on 2011-01-11 and not issued on 2011-01-13. (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 2011-03-13. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110113.gz","retrieved_at":"2026-10-12T19:15:11+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 134.73.0.0/16 assigned on 2011-01-12, not listed on 2011-01-13"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110111.gz","retrieved_at":"2026-10-12T19:15:07+00:00","summary":"ARIN delegated statistics 2011-01-11, before the report: assigned (dated 1989-05-10)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2011/delegated-arin-20110113.gz","retrieved_at":"2026-10-12T19:15:11+00:00","summary":"ARIN delegated statistics 2011-01-13, after the report: not issued"}]}],"classification_history":{"36e171c95e40544e":[{"raw_change_id":188644,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:03:00+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from LayerHost (ARIN) to Amazon.com, Inc. (ARIN) on 2024-08-14 16:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188644,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:47+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from LayerHost (ARIN) to Amazon.com, Inc. (ARIN) on 2024-08-14 16:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188644,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:39+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from LayerHost (ARIN) to Amazon.com, Inc. (ARIN) on 2024-08-14 16:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":188644,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:09+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from LayerHost (ARIN) to Amazon.com, Inc. (ARIN) on 2024-08-14 16:06 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"c1506d034da190a6":[{"raw_change_id":560346,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:49+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Global Frag Networks (ARIN) to Global Frag Networks (ARIN) on 2020-04-20 21:11 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}],"2d5010aeb73cbfca":[{"raw_change_id":151266,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:07+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-09-07 and allocated (dated 2017-09-08) on 2017-09-09. The tracker saw this range released from hold on 2011-07-19 (134.73.0.0-134.73.255.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":151266,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:08+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-09-07 and allocated (dated 2017-09-08) on 2017-09-09. The tracker saw this range released from hold on 2011-07-19 (134.73.0.0-134.73.255.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":151266,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:48+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-09-07 and allocated (dated 2017-09-08) on 2017-09-09. The tracker saw this range released from hold on 2011-07-19 (134.73.0.0-134.73.255.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":151266,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:56+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it reserved on 2017-09-07 and allocated (dated 2017-09-08) on 2017-09-09. The tracker saw this range released from hold on 2011-07-19 (134.73.0.0-134.73.255.255), so it appears to have been issued again from ARIN's pool."}],"51412d5a45ef9084":[{"raw_change_id":124027,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:14:30+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2011-07-18 and not issued on 2011-07-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":124027,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:21+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2011-07-18 and not issued on 2011-07-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":124027,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:55+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2011-07-18 and not issued on 2011-07-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":124027,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:55+00:00","current":1,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2011-07-18 and not issued on 2011-07-20. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."}],"309507a2bfa357aa":[{"raw_change_id":225238,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:18:35+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 1989-05-10) on 2011-01-11 and not issued on 2011-01-13. (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 2011-03-13. This does not confirm availability."},{"raw_change_id":225238,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:09:32+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 1989-05-10) on 2011-01-11 and not issued on 2011-01-13. (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 2011-03-13. This does not confirm availability."},{"raw_change_id":225238,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:52:34+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 1989-05-10) on 2011-01-11 and not issued on 2011-01-13. (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 2011-03-13. This does not confirm availability."},{"raw_change_id":225238,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:56:15+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 1989-05-10) on 2011-01-11 and not issued on 2011-01-13. (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 2011-03-13. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2024-08-14)"}}