{"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":"166.63.0.0/17","resource_type":"ipv4","page":"https://rirtracker.com/ip/166.63.0.0-166.63.127.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2012-03-28)"},"current_holder":{"rir":"ARIN","org":"The Endurance International Group, Inc.","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":11204,"date":"2017-10-23T18:05:20Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Ecommerce Corporation","recipient_org":"The Endurance International Group, Inc.","range":"166.63.0.0/17","log":"ARIN"}],"events":[{"event_id":"e32af81a8ed23ba8","registry":"ARIN","report_date":"2017-10-23","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"166.63.0.0/17","start":"166.63.0.0","end":"166.63.127.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Ecommerce Corporation","recipient_organization":"The Endurance International Group, Inc.","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","page":"https://rirtracker.com/ip/166.63.0.0-166.63.127.255/#e-e32af81a8ed23ba8","report_page":"https://rirtracker.com/arin/reports/2017-10-23/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/166.63.0.0-166.63.127.255.json","observed":"Merger/acquisition: Ecommerce Corporation (ARIN) to The Endurance International Group, Inc. (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Ecommerce Corporation (ARIN) to The Endurance International Group, Inc. (ARIN) on 2017-10-23 18:05 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 2017-10-23 18:05 UTC, Ecommerce Corporation (ARIN) to The Endurance International Group, Inc. (ARIN); resources moved: 166.63.0.0/17"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171022.gz","retrieved_at":"2026-10-12T21:36:12+00:00","summary":"ARIN delegated statistics 2017-10-22 (produced 2017-10-22T05:10:36+00:00), before the report: allocated (dated 2012-03-28)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2017/delegated-arin-extended-20171024.gz","retrieved_at":"2026-10-12T21:36:17+00:00","summary":"ARIN delegated statistics 2017-10-24 (produced 2017-10-24T05:09:56+00:00), after the report: allocated (dated 2012-03-28)"}]},{"event_id":"2022554b195ba8f9","registry":"ARIN","report_date":"2012-03-28","source":"arin_issued","raw_action":"ADD","raw_line":"Add 166.63.0.0-166.63.127.255","resource_type":"ipv4","resource":"166.63.0.0/17","start":"166.63.0.0","end":"166.63.127.255","classification":"APPARENT_NEW_ISSUANCE","classification_label":"Apparent new issuance","confidence":"STRONG_INFERENCE","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Likely issued from ARIN-controlled inventory","inventory_effect_code":"ISSUED","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","page":"https://rirtracker.com/ip/166.63.0.0-166.63.127.255/#e-2022554b195ba8f9","report_page":"https://rirtracker.com/arin/reports/2012-03-28/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/166.63.0.0-166.63.127.255.json","explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-03-27 and allocated (dated 2012-03-28) on 2012-03-29. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2012-March/001203.html","retrieved_at":"2026-10-12T18:37:27+00:00","summary":"ARIN-Issued report for 2012-03-28: \"Add 166.63.0.0-166.63.127.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120327.gz","retrieved_at":"2026-10-12T19:33:35+00:00","summary":"ARIN delegated statistics 2012-03-27, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2012/delegated-arin-20120329.gz","retrieved_at":"2026-10-12T19:33:40+00:00","summary":"ARIN delegated statistics 2012-03-29, after the report: allocated (dated 2012-03-28)"}]}],"classification_history":{"e32af81a8ed23ba8":[{"raw_change_id":553250,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:32+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Ecommerce Corporation (ARIN) to The Endurance International Group, Inc. (ARIN) on 2017-10-23 18:05 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."}],"2022554b195ba8f9":[{"raw_change_id":125854,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T03:16:43+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-03-27 and allocated (dated 2012-03-28) on 2012-03-29. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":125854,"classification_code":"APPARENT_REISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:24+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-03-27 and allocated (dated 2012-03-28) on 2012-03-29. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2011-06-06 (69.57.208.0-216.250.127.255), so it appears to have been issued again from ARIN's pool."},{"raw_change_id":125854,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:58+00:00","current":0,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-03-27 and allocated (dated 2012-03-28) on 2012-03-29. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."},{"raw_change_id":125854,"classification_code":"APPARENT_NEW_ISSUANCE","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:58+00:00","current":1,"public_explanation":"No transfer record matches. ARIN's statistics show it not issued on 2012-03-27 and allocated (dated 2012-03-28) on 2012-03-29. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2012-03-28)"}}