{"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":"148.163.160.0/20","resource_type":"ipv4","page":"https://rirtracker.com/ip/148.163.160.0-148.163.175.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2022-09-01)"},"current_holder":{"rir":"ARIN","org":"Calligo (Canada) Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":29087,"date":"2022-09-01T13:46:13Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"HOSTSPACE NETWORKS LLC","recipient_org":"Calligo (Canada) Inc.","range":"148.163.160.0/20","log":"ARIN"},{"id":10831,"date":"2017-08-30T17:07:09Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"ColoMX LLC","recipient_org":"HOSTSPACE NETWORKS LLC","range":"148.163.160.0/20","log":"ARIN"}],"events":[{"event_id":"3bf60c509566ac2b","registry":"ARIN","report_date":"2022-09-01","source":"arin_issued","raw_action":"ADD","raw_line":"Add 148.163.160.0-148.163.175.255","resource_type":"ipv4","resource":"148.163.160.0/20","start":"148.163.160.0","end":"148.163.175.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"HOSTSPACE NETWORKS LLC","recipient_organization":"Calligo (Canada) Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:28+00:00","page":"https://rirtracker.com/ip/148.163.160.0-148.163.175.255/#e-3bf60c509566ac2b","report_page":"https://rirtracker.com/arin/reports/2022-09-01/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/148.163.160.0-148.163.175.255.json","explanation":"ARIN's transfer log records a transfer from HOSTSPACE NETWORKS LLC (ARIN) to Calligo (Canada) Inc. (ARIN) on 2022-09-01 13:46 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/2022-September/005011.html","retrieved_at":"2026-10-12T18:41:53+00:00","summary":"ARIN-Issued report for 2022-09-01: \"Add 148.163.160.0-148.163.175.255\""},{"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 2022-09-01 13:46 UTC, HOSTSPACE NETWORKS LLC (ARIN) to Calligo (Canada) Inc. (ARIN); resources moved: 148.163.160.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220831.gz","retrieved_at":"2026-10-12T23:07:03+00:00","summary":"ARIN delegated statistics 2022-08-31 (produced 2022-08-31T13:00:11+00:00), before the report: allocated (dated 2017-08-30)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220902.gz","retrieved_at":"2026-10-12T23:07:08+00:00","summary":"ARIN delegated statistics 2022-09-02 (produced 2022-09-02T13:00:10+00:00), after the report: allocated (dated 2022-09-01)"}]},{"event_id":"86181cccd03d075e","registry":"ARIN","report_date":"2017-08-30","source":"arin_issued","raw_action":"ADD","raw_line":"Add 148.163.160.0-148.163.175.255","resource_type":"ipv4","resource":"148.163.160.0/20","start":"148.163.160.0","end":"148.163.175.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"ColoMX LLC","recipient_organization":"HOSTSPACE NETWORKS LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:55+00:00","page":"https://rirtracker.com/ip/148.163.160.0-148.163.175.255/#e-86181cccd03d075e","report_page":"https://rirtracker.com/arin/reports/2017-08-30/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/148.163.160.0-148.163.175.255.json","explanation":"ARIN's transfer log records a transfer from ColoMX LLC (ARIN) to HOSTSPACE NETWORKS LLC (ARIN) on 2017-08-30 17:07 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/2017-August/003185.html","retrieved_at":"2026-10-12T18:39:44+00:00","summary":"ARIN-Issued report for 2017-08-30: \"Add 148.163.160.0-148.163.175.255\""},{"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 2017-08-30 17:07 UTC, ColoMX LLC (ARIN) to HOSTSPACE NETWORKS LLC (ARIN); resources moved: 148.163.160.0/20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170829.gz","retrieved_at":"2026-10-12T21:33:28+00:00","summary":"ARIN delegated statistics 2017-08-29 (produced 2017-08-29T05:10:56+00:00), before the report: allocated (dated 2014-05-06)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20170831.gz","retrieved_at":"2026-10-12T21:33:33+00:00","summary":"ARIN delegated statistics 2017-08-31 (produced 2017-08-31T05:10:39+00:00), after the report: allocated (dated 2017-08-30)"}]},{"event_id":"618c4a52a29ca37d","registry":"ARIN","report_date":"2016-05-10","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"148.163.160.0/20","start":"148.163.160.0","end":"148.163.175.255","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":"2026-10-14T00:01:57+00:00","page":"https://rirtracker.com/ip/148.163.160.0-148.163.175.255/#e-618c4a52a29ca37d","report_page":"https://rirtracker.com/arin/reports/2016-05-10/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/148.163.160.0-148.163.175.255.json","observed":"148.163.160.0/20 allocated on 2016-05-10, reserved on 2016-05-11","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":"2016-07-09","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 allocated (dated 2014-05-06) on 2016-05-09 and reserved on 2016-05-11. 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 2016-07-09. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160511.gz","retrieved_at":"2026-10-12T21:10:11+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 148.163.160.0/20 allocated on 2016-05-10, reserved on 2016-05-11"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160509.gz","retrieved_at":"2026-10-12T21:10:06+00:00","summary":"ARIN delegated statistics 2016-05-09 (produced 2016-05-09T05:05:03+00:00), before the report: allocated (dated 2014-05-06)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160511.gz","retrieved_at":"2026-10-12T21:10:11+00:00","summary":"ARIN delegated statistics 2016-05-11 (produced 2016-05-11T05:05:06+00:00), after the report: reserved"}]},{"event_id":"cd718aa00627ce07","registry":"ARIN","report_date":"2014-05-06","source":"arin_issued","raw_action":"ADD","raw_line":"Add 148.163.160.0-148.163.175.255","resource_type":"ipv4","resource":"148.163.160.0/20","start":"148.163.160.0","end":"148.163.175.255","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":"2026-10-13T23:51:11+00:00","page":"https://rirtracker.com/ip/148.163.160.0-148.163.175.255/#e-cd718aa00627ce07","report_page":"https://rirtracker.com/arin/reports/2014-05-06/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/148.163.160.0-148.163.175.255.json","explanation":"No transfer record matches. ARIN's statistics show it available on 2014-05-05 and allocated (dated 2014-05-06) on 2014-05-07. 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/2014-May/001973.html","retrieved_at":"2026-10-12T18:38:22+00:00","summary":"ARIN-Issued report for 2014-05-06: \"Add 148.163.160.0-148.163.175.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140505.gz","retrieved_at":"2026-10-12T20:15:47+00:00","summary":"ARIN delegated statistics 2014-05-05 (produced 2014-05-05T05:04:05+00:00), before the report: available"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2014/delegated-arin-extended-20140507.gz","retrieved_at":"2026-10-12T20:15:52+00:00","summary":"ARIN delegated statistics 2014-05-07 (produced 2014-05-07T05:05:07+00:00), after the report: allocated (dated 2014-05-06)"}]}],"classification_history":{"3bf60c509566ac2b":[{"raw_change_id":177893,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:56:43+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from HOSTSPACE NETWORKS LLC (ARIN) to Calligo (Canada) Inc. (ARIN) on 2022-09-01 13:46 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":177893,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:16+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from HOSTSPACE NETWORKS LLC (ARIN) to Calligo (Canada) Inc. (ARIN) on 2022-09-01 13:46 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":177893,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:05+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from HOSTSPACE NETWORKS LLC (ARIN) to Calligo (Canada) Inc. (ARIN) on 2022-09-01 13:46 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":177893,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:53:28+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from HOSTSPACE NETWORKS LLC (ARIN) to Calligo (Canada) Inc. (ARIN) on 2022-09-01 13:46 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"86181cccd03d075e":[{"raw_change_id":151104,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:39:03+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ColoMX LLC (ARIN) to HOSTSPACE NETWORKS LLC (ARIN) on 2017-08-30 17:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":151104,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:07+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ColoMX LLC (ARIN) to HOSTSPACE NETWORKS LLC (ARIN) on 2017-08-30 17:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":151104,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:47+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from ColoMX LLC (ARIN) to HOSTSPACE NETWORKS LLC (ARIN) on 2017-08-30 17:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":151104,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:55+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from ColoMX LLC (ARIN) to HOSTSPACE NETWORKS LLC (ARIN) on 2017-08-30 17:07 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"618c4a52a29ca37d":[{"raw_change_id":317394,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T05:03:39+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 allocated (dated 2014-05-06) on 2016-05-09 and reserved on 2016-05-11. 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 2016-07-09. This does not confirm availability."},{"raw_change_id":317394,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:14:28+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 allocated (dated 2014-05-06) on 2016-05-09 and reserved on 2016-05-11. 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 2016-07-09. This does not confirm availability."},{"raw_change_id":317394,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:57:55+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 allocated (dated 2014-05-06) on 2016-05-09 and reserved on 2016-05-11. 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 2016-07-09. This does not confirm availability."},{"raw_change_id":317394,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-14T00:01:57+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 allocated (dated 2014-05-06) on 2016-05-09 and reserved on 2016-05-11. 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 2016-07-09. This does not confirm availability."}],"cd718aa00627ce07":[{"raw_change_id":132192,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:24:33+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-05-05 and allocated (dated 2014-05-06) on 2014-05-07. The tracker saw this range released from hold on 2011-09-28 (148.163.0.0-148.163.177.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":132192,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:34+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-05-05 and allocated (dated 2014-05-06) on 2014-05-07. The tracker saw this range released from hold on 2011-09-28 (148.163.0.0-148.163.177.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":132192,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:48:09+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-05-05 and allocated (dated 2014-05-06) on 2014-05-07. The tracker saw this range released from hold on 2011-09-28 (148.163.0.0-148.163.177.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":132192,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:51:11+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it available on 2014-05-05 and allocated (dated 2014-05-06) on 2014-05-07. 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":"allocated (dated 2022-09-01)"}}