{"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":"147.50.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/147.50.0.0-147.50.255.255/","statistics_now":{"registry":"APNIC","status":"allocated (dated 1991-01-28)"},"current_holder":{"rir":"APNIC","org":"CS LoxInfo Public Company Limited","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":129911,"date":"2025-01-08T05:19:44Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"CS Loxinfo Public Company Limited","recipient_org":"Advanced Wireless Network Company Limited","range":"147.50.32.0/24","log":"APNIC"},{"id":129510,"date":"2024-07-18T04:21:50Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"CS Loxinfo Public Company Limited","recipient_org":"Advanced Wireless Network Company Limited","range":"147.50.33.0/24","log":"APNIC"},{"id":128379,"date":"2023-01-27T06:29:58Z","type":"RESOURCE_TRANSFER","source_rir":"APNIC","recipient_rir":"APNIC","source_org":"CS Loxinfo Public Company Limited","recipient_org":"Advanced Wireless Network Company Limited","range":"147.50.80.0/20","log":"APNIC"},{"id":6479,"date":"2016-02-17T16:08:01Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Chemstress Consultant Company","recipient_org":"CS LoxInfo Public Company Limited","range":"147.50.0.0/16","log":"ARIN"},{"id":124370,"date":"2016-02-17T06:21:34Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"CHEMST","recipient_org":"CS Loxinfo Public Company Limited","range":"147.50.0.0/16","log":"APNIC"}],"events":[{"event_id":"d938d2d7b87b6007","registry":"ARIN","report_date":"2016-02-17","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"147.50.0.0/16","start":"147.50.0.0","end":"147.50.255.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Chemstress Consultant Company","recipient_organization":"CS LoxInfo Public Company Limited","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":"2026-10-14T00:01:44+00:00","page":"https://rirtracker.com/ip/147.50.0.0-147.50.255.255/#e-d938d2d7b87b6007","report_page":"https://rirtracker.com/arin/reports/2016-02-17/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.50.0.0-147.50.255.255.json","observed":"147.50.0.0/16 assigned on 2016-02-17, not listed on 2016-02-18","same_transfer_as":"540d3354cd2da867","explanation":"ARIN's transfer log records a transfer from Chemstress Consultant Company (ARIN) to CS LoxInfo Public Company Limited (APNIC) on 2016-02-17 16:08 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/2016/delegated-arin-extended-20160218.gz","retrieved_at":"2026-10-12T21:06:12+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 147.50.0.0/16 assigned on 2016-02-17, not listed on 2016-02-18"},{"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 2016-02-17 16:08 UTC, Chemstress Consultant Company (ARIN) to CS LoxInfo Public Company Limited (APNIC); resources moved: 147.50.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160216.gz","retrieved_at":"2026-10-12T21:06:07+00:00","summary":"ARIN delegated statistics 2016-02-16 (produced 2016-02-16T06:04:40+00:00), before the report: assigned (dated 1991-01-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160218.gz","retrieved_at":"2026-10-12T21:06:12+00:00","summary":"ARIN delegated statistics 2016-02-18 (produced 2016-02-18T06:04:32+00:00), after the report: not listed"}]},{"event_id":"540d3354cd2da867","registry":"APNIC","report_date":"2016-02-17","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"147.50.0.0/16","start":"147.50.0.0","end":"147.50.255.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"CHEMST","recipient_organization":"CS Loxinfo Public Company Limited","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:31+00:00","page":"https://rirtracker.com/ip/147.50.0.0-147.50.255.255/#e-540d3354cd2da867","report_page":"https://rirtracker.com/apnic/reports/2016-02-17/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/147.50.0.0-147.50.255.255.json","observed":"Transfer: CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC)","same_transfer_as":"d938d2d7b87b6007","explanation":"APNIC's transfer log records a transfer from CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC) on 2016-02-17 06:21 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 2016-02-17 06:21 UTC, CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC); resources moved: 147.50.0.0/16"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160217.gz","retrieved_at":"2026-10-12T21:33:45+00:00","summary":"APNIC delegated statistics 2016-02-17, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2016/delegated-apnic-extended-20160218.gz","retrieved_at":"2026-10-12T21:33:49+00:00","summary":"APNIC delegated statistics 2016-02-18, after the change: allocated (dated 1991-01-28)"}]}],"classification_history":{"d938d2d7b87b6007":[{"raw_change_id":314151,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:02:12+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Chemstress Consultant Company (ARIN) to CS LoxInfo Public Company Limited (APNIC) on 2016-02-17 16:08 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":314151,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:14:17+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Chemstress Consultant Company (ARIN) to CS LoxInfo Public Company Limited (APNIC) on 2016-02-17 16:08 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":314151,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:57:44+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Chemstress Consultant Company (ARIN) to CS LoxInfo Public Company Limited (APNIC) on 2016-02-17 16:08 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":314151,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:01:44+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Chemstress Consultant Company (ARIN) to CS LoxInfo Public Company Limited (APNIC) on 2016-02-17 16:08 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."}],"540d3354cd2da867":[{"raw_change_id":33274,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:34:56+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC) on 2016-02-17 06:21 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":33274,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:48+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC) on 2016-02-17 06:21 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":33274,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:43:57+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC) on 2016-02-17 06:21 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":33274,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:31+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from CHEMST (ARIN) to CS Loxinfo Public Company Limited (APNIC) on 2016-02-17 06:21 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"}}