{"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":"144.31.0.0/16","resource_type":"ipv4","page":"https://rirtracker.com/ip/144.31.0.0-144.31.255.255/","statistics_now":{"registry":"RIPE NCC","status":"allocated (dated 2025-03-25)"},"current_holder":{"rir":"RIPE NCC","org":"Ace Data Centers II, LLC","how":"The RIPE NCC's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":114821,"date":"2025-08-19T19:00:00Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"RIPE NCC","source_org":null,"recipient_org":"Ace Data Centers II, LLC","range":"144.31.0.0/16","log":"RIPE NCC"},{"id":39322,"date":"2025-03-12T18:47:36Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"PNC Bank, National Association","recipient_org":"Ace Data Centers II, L.L.C.","range":"144.31.0.0/16","log":"ARIN"},{"id":38583,"date":"2025-01-24T18:23:05Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Coastal Capital Funding Corporation","recipient_org":"PNC Bank, National Association","range":"144.31.0.0/16","log":"ARIN"}],"events":[{"event_id":"0e9efdd6d9ca2917","registry":"ARIN","report_date":"2025-08-19","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"144.31.0.0/16","start":"144.31.0.0","end":"144.31.255.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"OBSERVED_ONLY","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":"2026-10-14T00:13:34+00:00","page":"https://rirtracker.com/ip/144.31.0.0-144.31.255.255/#e-0e9efdd6d9ca2917","report_page":"https://rirtracker.com/arin/reports/2025-08-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/144.31.0.0-144.31.255.255.json","observed":"144.31.0.0/16 allocated on 2025-08-19, not listed on 2025-08-20","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":"2025-10-18","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 2025-03-12) on 2025-08-18 and not listed on 2025-08-20. Being gone from ARIN's statistics entirely can also mean it moved to another registry. 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 2025-10-18. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250820.gz","retrieved_at":"2026-10-13T00:05:15+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 144.31.0.0/16 allocated on 2025-08-19, not listed on 2025-08-20"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250818.gz","retrieved_at":"2026-10-13T00:05:10+00:00","summary":"ARIN delegated statistics 2025-08-18 (produced 2025-08-18T13:00:50+00:00), before the report: allocated (dated 2025-03-12)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250820.gz","retrieved_at":"2026-10-13T00:05:15+00:00","summary":"ARIN delegated statistics 2025-08-20 (produced 2025-08-20T13:00:51+00:00), after the report: not listed"}]},{"event_id":"c3f2f644f4b7c396","registry":"RIPE NCC","report_date":"2025-08-19","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"144.31.0.0/16","start":"144.31.0.0","end":"144.31.255.255","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":"Ace Data Centers II, LLC","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":"2026-10-13T23:50:33+00:00","page":"https://rirtracker.com/ip/144.31.0.0-144.31.255.255/#e-c3f2f644f4b7c396","report_page":"https://rirtracker.com/ripe/reports/2025-08-19/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/144.31.0.0-144.31.255.255.json","observed":"Transfer: (no name) (ARIN) to Ace Data Centers II, LLC (RIPE NCC)","explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Ace Data Centers II, LLC (RIPE NCC) on 2025-08-19 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 2025-08-19 19:00 UTC, (no name) (ARIN) to Ace Data Centers II, LLC (RIPE NCC); resources moved: 144.31.0.0/16"},{"type":"delegated_before","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250818.bz2","retrieved_at":"2026-10-13T01:06:52+00:00","summary":"RIPE NCC delegated statistics 2025-08-18 (produced 2025-08-18T21:59:59+00:00), before the change: not listed"},{"type":"delegated_after","url":"https://ftp.ripe.net/pub/stats/ripencc/2025/delegated-ripencc-extended-20250819.bz2","retrieved_at":"2026-10-13T01:06:55+00:00","summary":"RIPE NCC delegated statistics 2025-08-19 (produced 2025-08-19T21:59:59+00:00), after the change: allocated (dated 2025-03-25)"}]},{"event_id":"14d95d6e0621a9e0","registry":"ARIN","report_date":"2025-03-12","source":"arin_issued","raw_action":"ADD","raw_line":"Add 144.31.0.0-144.31.255.255","resource_type":"ipv4","resource":"144.31.0.0/16","start":"144.31.0.0","end":"144.31.255.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"PNC Bank, National Association","recipient_organization":"Ace Data Centers II, L.L.C.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","page":"https://rirtracker.com/ip/144.31.0.0-144.31.255.255/#e-14d95d6e0621a9e0","report_page":"https://rirtracker.com/arin/reports/2025-03-12/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/144.31.0.0-144.31.255.255.json","explanation":"ARIN's transfer log records a transfer from PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN) on 2025-03-12 18:47 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/2025-March/005933.html","retrieved_at":"2026-10-12T18:42:57+00:00","summary":"ARIN-Issued report for 2025-03-12: \"Add 144.31.0.0-144.31.255.255\""},{"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 2025-03-12 18:47 UTC, PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN); resources moved: 144.31.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250311.gz","retrieved_at":"2026-10-12T23:56:14+00:00","summary":"ARIN delegated statistics 2025-03-11 (produced 2025-03-11T13:01:06+00:00), before the report: allocated (dated 1990-11-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250313.gz","retrieved_at":"2026-10-12T23:56:20+00:00","summary":"ARIN delegated statistics 2025-03-13 (produced 2025-03-13T13:01:07+00:00), after the report: allocated (dated 2025-03-12)"}]},{"event_id":"7db5524731cd2628","registry":"ARIN","report_date":"2025-01-24","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"144.31.0.0/16","start":"144.31.0.0","end":"144.31.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Coastal Capital Funding Corporation","recipient_organization":"PNC Bank, National Association","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:19+00:00","page":"https://rirtracker.com/ip/144.31.0.0-144.31.255.255/#e-7db5524731cd2628","report_page":"https://rirtracker.com/arin/reports/2025-01-24/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/144.31.0.0-144.31.255.255.json","observed":"Merger/acquisition: Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN) on 2025-01-24 18:23 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 2025-01-24 18:23 UTC, Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN); resources moved: 144.31.0.0/16"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250123.gz","retrieved_at":"2026-10-12T23:53:30+00:00","summary":"ARIN delegated statistics 2025-01-23 (produced 2025-01-23T14:01:06+00:00), before the report: allocated (dated 1990-11-09)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2025/delegated-arin-extended-20250125.gz","retrieved_at":"2026-10-12T23:53:47+00:00","summary":"ARIN delegated statistics 2025-01-25 (produced 2025-01-25T14:01:06+00:00), after the report: allocated (dated 1990-11-09)"}]}],"classification_history":{"0e9efdd6d9ca2917":[{"raw_change_id":484402,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T06:17:07+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 2025-03-12) on 2025-08-18 and not listed on 2025-08-20. Being gone from ARIN's statistics entirely can also mean it moved to another registry. 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 2025-10-18. This does not confirm availability."},{"raw_change_id":484402,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:23:58+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 2025-03-12) on 2025-08-18 and not listed on 2025-08-20. Being gone from ARIN's statistics entirely can also mean it moved to another registry. 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 2025-10-18. This does not confirm availability."},{"raw_change_id":484402,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T15:08:07+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 2025-03-12) on 2025-08-18 and not listed on 2025-08-20. Being gone from ARIN's statistics entirely can also mean it moved to another registry. 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 2025-10-18. This does not confirm availability."},{"raw_change_id":484402,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-14T00:13:34+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 2025-03-12) on 2025-08-18 and not listed on 2025-08-20. Being gone from ARIN's statistics entirely can also mean it moved to another registry. 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 2025-10-18. This does not confirm availability."}],"c3f2f644f4b7c396":[{"raw_change_id":115620,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:09:33+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Ace Data Centers II, LLC (RIPE NCC) on 2025-08-19 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":115620,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:05+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Ace Data Centers II, LLC (RIPE NCC) on 2025-08-19 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":115620,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:36+00:00","current":0,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Ace Data Centers II, LLC (RIPE NCC) on 2025-08-19 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":115620,"classification_code":"INTER_RIR_TRANSFER_IN","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:33+00:00","current":1,"public_explanation":"The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Ace Data Centers II, LLC (RIPE NCC) on 2025-08-19 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."}],"14d95d6e0621a9e0":[{"raw_change_id":192869,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T04:05:40+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN) on 2025-03-12 18:47 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192869,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:07:58+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN) on 2025-03-12 18:47 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192869,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:50:51+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN) on 2025-03-12 18:47 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":192869,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:54:24+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN) on 2025-03-12 18:47 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}],"7db5524731cd2628":[{"raw_change_id":572745,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:19+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN) on 2025-01-24 18:23 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."}]},"arin_statistics_now":{"status":"not listed"}}