{"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":"135.149.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/135.149.0.0-135.149.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1989-04-13)"},"current_holder":{"rir":"APNIC","org":"Microsoft Operations Pte. Ltd.","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":17292,"date":"2019-04-02T16:31:20Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Avago Technologies U.S. Inc.","recipient_org":"Microsoft Operations Pte. Ltd.","range":"135.149.0.0/16","log":"ARIN"},{"id":126101,"date":"2019-04-02T07:52:16Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"ATU-3","recipient_org":"Microsoft Singapore Pte. Ltd.","range":"135.149.0.0/16","log":"APNIC"}],"events":[{"event_id":"9bf728b3481e6916","registry":"ARIN","report_date":"2019-04-02","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"135.149.0.0/16","start":"135.149.0.0","end":"135.149.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Avago Technologies U.S. Inc.","recipient_organization":"Microsoft Operations Pte. Ltd.","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":"2026-10-14T00:05:24+00:00","page":"https://rirtracker.com/ip/135.149.0.0-135.149.255.255/#e-9bf728b3481e6916","report_page":"https://rirtracker.com/arin/reports/2019-04-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/135.149.0.0-135.149.255.255.json","observed":"135.149.0.0/16 assigned on 2019-04-02, not listed on 2019-04-03","same_transfer_as":"39a9eec67a29403b","explanation":"ARIN's transfer log records a transfer from Avago Technologies U.S. Inc. (ARIN) to Microsoft Operations Pte. Ltd. (APNIC) on 2019-04-02 16:31 UTC: it left ARIN for APNIC. 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/2019/delegated-arin-extended-20190403.gz","retrieved_at":"2026-10-12T22:02:52+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 135.149.0.0/16 assigned on 2019-04-02, not listed on 2019-04-03"},{"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 2019-04-02 16:31 UTC, Avago Technologies U.S. Inc. (ARIN) to Microsoft Operations Pte. Ltd. (APNIC); resources moved: 135.149.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190401.gz","retrieved_at":"2026-10-12T22:02:47+00:00","summary":"ARIN delegated statistics 2019-04-01 (produced 2019-04-01T05:00:12+00:00), before the report: assigned (dated 1989-04-13)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2019/delegated-arin-extended-20190403.gz","retrieved_at":"2026-10-12T22:02:52+00:00","summary":"ARIN delegated statistics 2019-04-03 (produced 2019-04-03T05:00:11+00:00), after the report: not listed"}]},{"event_id":"39a9eec67a29403b","registry":"APNIC","report_date":"2019-04-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"135.149.0.0/16","start":"135.149.0.0","end":"135.149.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"ATU-3","recipient_organization":"Microsoft Singapore Pte. Ltd.","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:37+00:00","page":"https://rirtracker.com/ip/135.149.0.0-135.149.255.255/#e-39a9eec67a29403b","report_page":"https://rirtracker.com/apnic/reports/2019-04-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/135.149.0.0-135.149.255.255.json","observed":"Transfer: ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC)","same_transfer_as":"9bf728b3481e6916","explanation":"APNIC's transfer log records a transfer from ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC) on 2019-04-02 07:52 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance.","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 2019-04-02 07:52 UTC, ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC); resources moved: 128.94.0.0/16, 135.149.0.0/16, 147.145.0.0/16, 155.62.0.0/16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20190402.gz","retrieved_at":"2026-10-12T22:49:42+00:00","summary":"APNIC delegated statistics 2019-04-02, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2019/delegated-apnic-extended-20190403.gz","retrieved_at":"2026-10-12T22:49:55+00:00","summary":"APNIC delegated statistics 2019-04-03, after the change: allocated (dated 1989-04-13)"}]}],"classification_history":{"9bf728b3481e6916":[{"raw_change_id":371343,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:29:03+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Avago Technologies U.S. Inc. (ARIN) to Microsoft Operations Pte. Ltd. (APNIC) on 2019-04-02 16:31 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":371343,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:17:21+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Avago Technologies U.S. Inc. (ARIN) to Microsoft Operations Pte. Ltd. (APNIC) on 2019-04-02 16:31 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":371343,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:01:01+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Avago Technologies U.S. Inc. (ARIN) to Microsoft Operations Pte. Ltd. (APNIC) on 2019-04-02 16:31 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."},{"raw_change_id":371343,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:05:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Avago Technologies U.S. Inc. (ARIN) to Microsoft Operations Pte. Ltd. (APNIC) on 2019-04-02 16:31 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants."}],"39a9eec67a29403b":[{"raw_change_id":35782,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:35:57+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC) on 2019-04-02 07:52 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35782,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:53+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC) on 2019-04-02 07:52 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35782,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:03+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC) on 2019-04-02 07:52 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":35782,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:37+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from ATU-3 (ARIN) to Microsoft Singapore Pte. Ltd. (APNIC) on 2019-04-02 07:52 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."}]},"arin_statistics_now":{"status":"not listed"}}