{"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":"216.157.157.0/24","resource_type":"ipv4","page":"https://rirtracker.com/ip/216.157.157.0-216.157.157.255/","statistics_now":{"registry":"APNIC","status":"assigned (dated 2002-08-09)"},"current_holder":{"rir":"APNIC","org":"Splunk Inc.","how":"APNIC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":22598,"date":"2021-01-13T17:30:08Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"Frontline Communications","recipient_org":"Splunk Inc.","range":"216.157.157.0/24","log":"ARIN"},{"id":127041,"date":"2021-01-13T03:15:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"APNIC","source_org":"SINEP-1","recipient_org":"Splunk Inc.","range":"216.157.157.0/24","log":"APNIC"},{"id":14032,"date":"2018-07-30T18:30:34Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Frontline Data Services, Inc","recipient_org":"Sinep Corporation","range":"216.157.128.0/19","log":"ARIN"}],"events":[{"event_id":"f693e91e86f34064","registry":"ARIN","report_date":"2021-01-13","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"216.157.157.0/24","start":"216.157.157.0","end":"216.157.157.255","classification":"INTER_RIR_TRANSFER_OUT","classification_label":"Inter-RIR transfer out of ARIN","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"Frontline Communications","recipient_organization":"Splunk Inc.","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":"2026-10-14T00:07:47+00:00","page":"https://rirtracker.com/ip/216.157.157.0-216.157.157.255/#e-f693e91e86f34064","report_page":"https://rirtracker.com/arin/reports/2021-01-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.157.157.0-216.157.157.255.json","observed":"216.157.157.0/24 allocated on 2021-01-13, not listed on 2021-01-14","same_transfer_as":"bbedd7cafe3e5ea7","explanation":"ARIN's transfer log records a transfer from Frontline Communications (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 17:30 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/2021/delegated-arin-extended-20210114.gz","retrieved_at":"2026-10-12T22:36:33+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 216.157.157.0/24 allocated on 2021-01-13, not listed on 2021-01-14"},{"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 2021-01-13 17:30 UTC, Frontline Communications (ARIN) to Splunk Inc. (APNIC); resources moved: 216.157.157.0/24"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210112.gz","retrieved_at":"2026-10-12T22:36:28+00:00","summary":"ARIN delegated statistics 2021-01-12 (produced 2021-01-12T15:00:14+00:00), before the report: allocated (dated 2002-08-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2021/delegated-arin-extended-20210114.gz","retrieved_at":"2026-10-12T22:36:33+00:00","summary":"ARIN delegated statistics 2021-01-14 (produced 2021-01-14T15:00:14+00:00), after the report: not listed"}]},{"event_id":"bbedd7cafe3e5ea7","registry":"APNIC","report_date":"2021-01-13","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"216.157.157.0/24","start":"216.157.157.0","end":"216.157.157.255","classification":"INTER_RIR_TRANSFER_IN","classification_label":"Inter-RIR transfer into APNIC","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"APNIC","source_organization":"SINEP-1","recipient_organization":"Splunk Inc.","inventory_effect":"Transferred into APNIC administration; not a new issuance","inventory_effect_code":"TRANSFER_IN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:41+00:00","page":"https://rirtracker.com/ip/216.157.157.0-216.157.157.255/#e-bbedd7cafe3e5ea7","report_page":"https://rirtracker.com/apnic/reports/2021-01-13/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/216.157.157.0-216.157.157.255.json","observed":"Transfer: SINEP-1 (ARIN) to Splunk Inc. (APNIC)","same_transfer_as":"f693e91e86f34064","explanation":"APNIC's transfer log records a transfer from SINEP-1 (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 03:15 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 2021-01-13 03:15 UTC, SINEP-1 (ARIN) to Splunk Inc. (APNIC); resources moved: 216.157.157.0/24"},{"type":"delegated_before","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210113.gz","retrieved_at":"2026-10-12T23:35:59+00:00","summary":"APNIC delegated statistics 2021-01-13, before the change: not listed"},{"type":"delegated_after","url":"https://ftp.apnic.net/stats/apnic/2021/delegated-apnic-extended-20210114.gz","retrieved_at":"2026-10-12T23:36:03+00:00","summary":"APNIC delegated statistics 2021-01-14, after the change: assigned (dated 2002-08-09)"}]}],"classification_history":{"f693e91e86f34064":[{"raw_change_id":406720,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T05:43:05+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Frontline Communications (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 17:30 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":406720,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:19:18+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Frontline Communications (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 17:30 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":406720,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T15:03:08+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from Frontline Communications (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 17:30 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":406720,"classification_code":"INTER_RIR_TRANSFER_OUT","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:07:47+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from Frontline Communications (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 17:30 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."}],"bbedd7cafe3e5ea7":[{"raw_change_id":37426,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T02:36:39+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from SINEP-1 (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 03:15 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":37426,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:01:56+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from SINEP-1 (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 03:15 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":37426,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:44:06+00:00","current":0,"public_explanation":"APNIC's transfer log records a transfer from SINEP-1 (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 03:15 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance."},{"raw_change_id":37426,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:46:41+00:00","current":1,"public_explanation":"APNIC's transfer log records a transfer from SINEP-1 (ARIN) to Splunk Inc. (APNIC) on 2021-01-13 03:15 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"}}