{"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":"209.217.224.0/19","resource_type":"ipv4","page":"https://rirtracker.com/ip/209.217.224.0-209.217.255.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2010-08-02)"},"current_holder":{"rir":"ARIN","org":"NETWORK TRANSIT HOLDINGS LLC","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":7838,"date":"2016-09-21T16:34:49Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Landis Holdings Inc","recipient_org":"NETWORK TRANSIT HOLDINGS LLC","range":"209.217.224.0/19","log":"ARIN"}],"events":[{"event_id":"33351d73249dec8b","registry":"ARIN","report_date":"2016-09-21","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"209.217.224.0/19","start":"209.217.224.0","end":"209.217.255.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Landis Holdings Inc","recipient_organization":"NETWORK TRANSIT HOLDINGS LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:26+00:00","page":"https://rirtracker.com/ip/209.217.224.0-209.217.255.255/#e-33351d73249dec8b","report_page":"https://rirtracker.com/arin/reports/2016-09-21/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.217.224.0-209.217.255.255.json","observed":"Merger/acquisition: Landis Holdings Inc (ARIN) to NETWORK TRANSIT HOLDINGS LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Landis Holdings Inc (ARIN) to NETWORK TRANSIT HOLDINGS LLC (ARIN) on 2016-09-21 16:34 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 2016-09-21 16:34 UTC, Landis Holdings Inc (ARIN) to NETWORK TRANSIT HOLDINGS LLC (ARIN); resources moved: 209.217.224.0/19"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160920.gz","retrieved_at":"2026-10-12T21:16:37+00:00","summary":"ARIN delegated statistics 2016-09-20 (produced 2016-09-20T05:10:06+00:00), before the report: allocated (dated 2010-08-02)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2016/delegated-arin-extended-20160922.gz","retrieved_at":"2026-10-12T21:16:42+00:00","summary":"ARIN delegated statistics 2016-09-22 (produced 2016-09-22T05:09:03+00:00), after the report: allocated (dated 2010-08-02)"}]},{"event_id":"13b6a2393dcb32ac","registry":"ARIN","report_date":"2010-06-07","source":"arin_issued","raw_action":"REMOVE","raw_line":"Remove 209.217.224.0-209.217.255.255","resource_type":"ipv4","resource":"209.217.224.0/19","start":"209.217.224.0","end":"209.217.255.255","classification":"UNRESOLVED","classification_label":"Unresolved change","confidence":"OBSERVED_ONLY","source_rir":null,"recipient_rir":null,"source_organization":null,"recipient_organization":null,"inventory_effect":"Inventory effect unknown","inventory_effect_code":"UNKNOWN","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:49+00:00","page":"https://rirtracker.com/ip/209.217.224.0-209.217.255.255/#e-13b6a2393dcb32ac","report_page":"https://rirtracker.com/arin/reports/2010-06-07/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.217.224.0-209.217.255.255.json","explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-06-06 and not issued on 2010-06-08. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.","evidence":[{"type":"arin_issued","url":"https://lists.arin.net/pipermail/arin-issued/2010-June/000538.html","retrieved_at":"2026-10-12T18:36:43+00:00","summary":"ARIN-Issued report for 2010-06-07: \"Remove 209.217.224.0-209.217.255.255\""},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100606.gz","retrieved_at":"2026-10-12T19:06:08+00:00","summary":"ARIN delegated statistics 2010-06-06, before the report: not issued"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2010/delegated-arin-20100608.gz","retrieved_at":"2026-10-12T19:06:13+00:00","summary":"ARIN delegated statistics 2010-06-08, after the report: not issued"}]},{"event_id":"7b51a61c5e86a65e","registry":"ARIN","report_date":"2009-06-02","source":"statistics","raw_action":"NOT_IN_ARIN_ISSUED","raw_line":null,"resource_type":"ipv4","resource":"209.217.224.0/19","start":"209.217.224.0","end":"209.217.255.255","classification":"REMOVED_REASON_UNKNOWN","classification_label":"Removed (return, revocation or reclamation not publicly distinguishable)","confidence":"STRONG_INFERENCE","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":"2026-10-13T23:55:05+00:00","page":"https://rirtracker.com/ip/209.217.224.0-209.217.255.255/#e-7b51a61c5e86a65e","report_page":"https://rirtracker.com/arin/reports/2009-06-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/209.217.224.0-209.217.255.255.json","observed":"209.217.224.0/19 assigned on 2009-06-02, not listed on 2009-06-03","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":"2009-08-01","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 assigned (dated 2000-10-05) on 2009-06-01 and not issued on 2009-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2009-08-01. This does not confirm availability.","evidence":[{"type":"statistics_diff","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090603.gz","retrieved_at":"2026-10-12T18:51:00+00:00","summary":"Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 209.217.224.0/19 assigned on 2009-06-02, not listed on 2009-06-03"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090601.gz","retrieved_at":"2026-10-12T18:50:55+00:00","summary":"ARIN delegated statistics 2009-06-01, before the report: assigned (dated 2000-10-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2009/delegated-arin-20090603.gz","retrieved_at":"2026-10-12T18:51:00+00:00","summary":"ARIN delegated statistics 2009-06-03, after the report: not issued"}]}],"classification_history":{"33351d73249dec8b":[{"raw_change_id":550846,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:26+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Landis Holdings Inc (ARIN) to NETWORK TRANSIT HOLDINGS LLC (ARIN) on 2016-09-21 16:34 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."}],"13b6a2393dcb32ac":[{"raw_change_id":121391,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.0","classified_at":"2026-10-13T03:12:14+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-06-06 and not issued on 2010-06-08. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":121391,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.1","classified_at":"2026-10-13T08:05:16+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-06-06 and not issued on 2010-06-08. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":121391,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.3.2","classified_at":"2026-10-13T14:47:50+00:00","current":0,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-06-06 and not issued on 2010-06-08. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."},{"raw_change_id":121391,"classification_code":"UNRESOLVED","confidence":"OBSERVED_ONLY","classifier_version":"1.4.0","classified_at":"2026-10-13T23:50:49+00:00","current":1,"public_explanation":"ARIN-Issued says \"Remove\", but ARIN's statistics show it not issued on 2010-06-06 and not issued on 2010-06-08. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed."}],"7b51a61c5e86a65e":[{"raw_change_id":205109,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.0","classified_at":"2026-10-13T04:11:04+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 assigned (dated 2000-10-05) on 2009-06-01 and not issued on 2009-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2009-08-01. This does not confirm availability."},{"raw_change_id":205109,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.1","classified_at":"2026-10-13T08:08:31+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 assigned (dated 2000-10-05) on 2009-06-01 and not issued on 2009-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2009-08-01. This does not confirm availability."},{"raw_change_id":205109,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.3.2","classified_at":"2026-10-13T14:51:29+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 assigned (dated 2000-10-05) on 2009-06-01 and not issued on 2009-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2009-08-01. This does not confirm availability."},{"raw_change_id":205109,"classification_code":"REMOVED_REASON_UNKNOWN","confidence":"STRONG_INFERENCE","classifier_version":"1.4.0","classified_at":"2026-10-13T23:55:05+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 assigned (dated 2000-10-05) on 2009-06-01 and not issued on 2009-06-03. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2009-08-01. This does not confirm availability."}]},"arin_statistics_now":{"status":"allocated (dated 2010-08-02)"}}