{"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":"132.164.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/132.164.0.0-132.164.255.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 1989-02-24)"},"current_holder":{"rir":"RIPE NCC","org":"Microsoft Limited","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":88504,"date":"2022-07-05T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Microsoft Limited","range":"132.164.0.0/16","log":"RIPE NCC"},{"id":28461,"date":"2022-07-05T11:40:44Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":"L3Harris Technologies, Inc.","recipient_org":": Microsoft Limited [ORG-MA42-RIPE","range":"132.164.0.0/16","log":"ARIN"},{"id":28115,"date":"2022-05-16T19:21:01Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Hughes Simulation Systems, Inc.","recipient_org":"L3Harris Technologies, Inc.","range":"132.164.0.0/16","log":"ARIN"}],"events":[{"event_id":"c733edaceb9e749a","registry":"RIPE NCC","report_date":"2022-07-05","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"132.164.0.0/16","start":"132.164.0.0","end":"132.164.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into the RIPE NCC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":null,"recipient_organization":"Microsoft Limited","inventory_effect":"Transferred into RIPE NCC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:09+00:00","page":"https://rirtracker.com/ip/132.164.0.0-132.164.255.255/#e-c733edaceb9e749a","report_page":"https://rirtracker.com/ripe/reports/2022-07-05/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/132.164.0.0-132.164.255.255.json","observed":"Transfer: (no name) (ARIN) to Microsoft Limited (RIPE NCC)","same_transfer_as":"545f383d289339f0","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Microsoft Limited (RIPE NCC) on 2022-07-05 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.","evidence":[{"type":"transfer","url":"https://ftp.ripe.net/pub/stats/ripencc/transfers/transfers_latest.json","retrieved_at":"2026-10-13T21:49:37+00:00","summary":"Transfer log: RESOURCE_TRANSFER on 2022-07-05 19:00 UTC, (no name) (ARIN) to Microsoft Limited (RIPE NCC); resources moved: 132.164.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20220704.bz2","retrieved_at":"2026-10-12T23:38:41+00:00","summary":"RIPE NCC delegated statistics 2022-07-04 (produced 2022-07-04T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2022/delegated-ripencc-extended-20220705.bz2","retrieved_at":"2026-10-12T23:39:04+00:00","summary":"RIPE NCC delegated statistics 2022-07-05 (produced 2022-07-05T21:59:59+00:00), after the change: allocated (dated 1989-02-24)"}]},{"event_id":"545f383d289339f0","registry":"ARIN","report_date":"2022-07-04","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"132.164.0.0/16","start":"132.164.0.0","end":"132.164.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_organization":"L3Harris Technologies, Inc.","recipient_organization":": Microsoft Limited [ORG-MA42-RIPE","inventory_effect":"Transferred out of ARIN administration; not offered to ARIN applicants","inventory_effect_code":"TRANSFER_OUT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:29+00:00","page":"https://rirtracker.com/ip/132.164.0.0-132.164.255.255/#e-545f383d289339f0","report_page":"https://rirtracker.com/arin/reports/2022-07-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/132.164.0.0-132.164.255.255.json","observed":"132.164.0.0/16 allocated on 2022-07-04, not listed on 2022-07-05","same_transfer_as":"c733edaceb9e749a","explanation":"ARIN's transfer log records a transfer from L3Harris Technologies, Inc. (ARIN) to : Microsoft Limited [ORG-MA42-RIPE (RIPE NCC) on 2022-07-05 11:40 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220705.gz","retrieved_at":"2026-10-12T23:04:05+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 132.164.0.0/16 allocated on 2022-07-04, not listed on 2022-07-05"},{"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 2022-07-05 11:40 UTC, L3Harris Technologies, Inc. (ARIN) to : Microsoft Limited [ORG-MA42-RIPE (RIPE NCC); resources moved: 132.164.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220703.gz","retrieved_at":"2026-10-12T23:04:00+00:00","summary":"ARIN delegated statistics 2022-07-03 (produced 2022-07-03T13:00:09+00:00), before the report: allocated (dated 1989-02-24)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220705.gz","retrieved_at":"2026-10-12T23:04:05+00:00","summary":"ARIN delegated statistics 2022-07-05 (produced 2022-07-05T13:00:08+00:00), after the report: not listed"}]},{"event_id":"ff0c6e5dde6c39bf","registry":"ARIN","report_date":"2022-05-16","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"132.164.0.0/16","start":"132.164.0.0","end":"132.164.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Hughes Simulation Systems, Inc.","recipient_organization":"L3Harris Technologies, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:02+00:00","page":"https://rirtracker.com/ip/132.164.0.0-132.164.255.255/#e-ff0c6e5dde6c39bf","report_page":"https://rirtracker.com/arin/reports/2022-05-16/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/132.164.0.0-132.164.255.255.json","observed":"Merger/acquisition: Hughes Simulation Systems, Inc. (ARIN) to L3Harris Technologies, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Hughes Simulation Systems, Inc. (ARIN) to L3Harris Technologies, Inc. (ARIN) on 2022-05-16 19:21 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 2022-05-16 19:21 UTC, Hughes Simulation Systems, Inc. (ARIN) to L3Harris Technologies, Inc. (ARIN); resources moved: 132.164.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220515.gz","retrieved_at":"2026-10-12T23:01:24+00:00","summary":"ARIN delegated statistics 2022-05-15 (produced 2022-05-15T13:00:10+00:00), before the report: allocated (dated 1989-02-24)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220517.gz","retrieved_at":"2026-10-12T23:01:29+00:00","summary":"ARIN delegated statistics 2022-05-17 (produced 2022-05-17T13:00:11+00:00), after the report: allocated (dated 1989-02-24)"}]},{"event_id":"7a785af2e52f296d","registry":"ARIN","report_date":"2013-02-15","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"132.164.0.0/16","start":"132.164.0.0","end":"132.164.255.255","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":"2026-10-13T23:57:56+00:00","page":"https://rirtracker.com/ip/132.164.0.0-132.164.255.255/#e-7a785af2e52f296d","report_page":"https://rirtracker.com/arin/reports/2013-02-15/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/132.164.0.0-132.164.255.255.json","observed":"132.164.0.0/16 assigned on 2013-02-15, not listed on 2013-02-16","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":"2013-04-16","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 1989-02-24) on 2013-02-14 and not issued on 2013-02-16. (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 2013-04-16. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130216.gz","retrieved_at":"2026-10-12T19:54:51+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 132.164.0.0/16 assigned on 2013-02-15, not listed on 2013-02-16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130214.gz","retrieved_at":"2026-10-12T19:54:47+00:00","summary":"ARIN delegated statistics 2013-02-14, before the report: assigned (dated 1989-02-24)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2013/delegated-arin-20130216.gz","retrieved_at":"2026-10-12T19:54:51+00:00","summary":"ARIN delegated statistics 2013-02-16, after the report: not issued"}]}],"classification_history":{"c733edaceb9e749a":[{"raw_change_id":88795,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:57:57+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Microsoft Limited (RIPE NCC) on 2022-07-05 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":88795,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:03:58+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Microsoft Limited (RIPE NCC) on 2022-07-05 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":88795,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:46:22+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Microsoft Limited (RIPE NCC) on 2022-07-05 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":88795,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:49:09+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Microsoft Limited (RIPE NCC) on 2022-07-05 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance."}],"545f383d289339f0":[{"raw_change_id":430427,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:52:21+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from L3Harris Technologies, Inc. (ARIN) to : Microsoft Limited [ORG-MA42-RIPE (RIPE NCC) on 2022-07-05 11:40 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":430427,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:20:44+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from L3Harris Technologies, Inc. (ARIN) to : Microsoft Limited [ORG-MA42-RIPE (RIPE NCC) on 2022-07-05 11:40 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":430427,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:04:39+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from L3Harris Technologies, Inc. (ARIN) to : Microsoft Limited [ORG-MA42-RIPE (RIPE NCC) on 2022-07-05 11:40 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":430427,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:09:29+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from L3Harris Technologies, Inc. (ARIN) to : Microsoft Limited [ORG-MA42-RIPE (RIPE NCC) on 2022-07-05 11:40 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}],"ff0c6e5dde6c39bf":[{"raw_change_id":565721,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:02+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Hughes Simulation Systems, Inc. (ARIN) to L3Harris Technologies, Inc. (ARIN) on 2022-05-16 19:21 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."}],"7a785af2e52f296d":[{"raw_change_id":254951,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:33:11+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 1989-02-24) on 2013-02-14 and not issued on 2013-02-16. (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 2013-04-16. This does not confirm availability."},{"raw_change_id":254951,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:11:01+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 1989-02-24) on 2013-02-14 and not issued on 2013-02-16. (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 2013-04-16. This does not confirm availability."},{"raw_change_id":254951,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:54:12+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 1989-02-24) on 2013-02-14 and not issued on 2013-02-16. (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 2013-04-16. This does not confirm availability."},{"raw_change_id":254951,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:57:56+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 1989-02-24) on 2013-02-14 and not issued on 2013-02-16. (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 2013-04-16. This does not confirm availability."}]},"arin_statistics_now":{"status":"not listed"}}