{"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":"158.247.0.0/21","resource_type":"ipv4","page":"https://rirtracker.com/ip/158.247.0.0-158.247.7.255/","statistics_now":{"registry":"ARIN","status":"allocated (dated 2020-03-04)"},"current_holder":{"rir":"ARIN","org":"No-IP","how":"ARIN's latest statistics and the latest transfer record"},"rdap_snapshots":[],"transfers":[{"id":45437,"date":"2026-09-02T15:30:15Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Vitalwerks Internet Solutions, LLC","recipient_org":"No-IP","range":"158.247.0.0/21","log":"ARIN"},{"id":20195,"date":"2020-03-05T00:54:32Z","type":"RESOURCE_TRANSFER","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"THE MCCALL PATTERN COMPANY, INC.","recipient_org":"Vitalwerks Internet Solutions, LLC","range":"158.247.0.0/21","log":"ARIN"},{"id":18594,"date":"2019-08-09T09:50:33Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"The McCall Pattern Company","recipient_org":"THE MCCALL PATTERN COMPANY Inc.","range":"158.247.0.0/16","log":"ARIN"}],"events":[{"event_id":"52fafba69d593241","registry":"ARIN","report_date":"2026-09-02","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"ipv4","resource":"158.247.0.0/21","start":"158.247.0.0","end":"158.247.7.255","classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Vitalwerks Internet Solutions, LLC","recipient_organization":"No-IP","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:30+00:00","page":"https://rirtracker.com/ip/158.247.0.0-158.247.7.255/#e-52fafba69d593241","report_page":"https://rirtracker.com/arin/reports/2026-09-02/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/158.247.0.0-158.247.7.255.json","observed":"Merger/acquisition: Vitalwerks Internet Solutions, LLC (ARIN) to No-IP (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Vitalwerks Internet Solutions, LLC (ARIN) to No-IP (ARIN) on 2026-09-02 15:30 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 2026-09-02 15:30 UTC, Vitalwerks Internet Solutions, LLC (ARIN) to No-IP (ARIN); resources moved: 158.247.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260901","retrieved_at":"2026-10-09T19:07:00+00:00","summary":"ARIN delegated statistics 2026-09-01 (produced 2026-09-01T13:00:20+00:00), before the report: allocated (dated 2020-03-04)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-20260903","retrieved_at":"2026-10-09T19:07:06+00:00","summary":"ARIN delegated statistics 2026-09-03 (produced 2026-09-03T13:00:21+00:00), after the report: allocated (dated 2020-03-04)"}]},{"event_id":"39be592da8a9d2d1","registry":"ARIN","report_date":"2020-03-04","source":"arin_issued","raw_action":"ADD","raw_line":"Add 158.247.0.0-158.247.7.255","resource_type":"ipv4","resource":"158.247.0.0/21","start":"158.247.0.0","end":"158.247.7.255","classification":"INTRA_RIR_TRANSFER","classification_label":"Intra-ARIN transfer","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"THE MCCALL PATTERN COMPANY, INC.","recipient_organization":"Vitalwerks Internet Solutions, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:46+00:00","page":"https://rirtracker.com/ip/158.247.0.0-158.247.7.255/#e-39be592da8a9d2d1","report_page":"https://rirtracker.com/arin/reports/2020-03-04/","evidence_url":"https://rirtracker.com/api/v1/resources/ip/158.247.0.0-158.247.7.255.json","piece_of":{"resource":"158.247.0.0/16","page":"https://rirtracker.com/ip/158.247.0.0-158.247.255.255/"},"explanation":"ARIN's transfer log records a transfer from THE MCCALL PATTERN COMPANY, INC. (ARIN) to Vitalwerks Internet Solutions, LLC (ARIN) on 2020-03-05 00:54 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/2020-March/004100.html","retrieved_at":"2026-10-12T18:40:50+00:00","summary":"ARIN-Issued report for 2020-03-04: \"Add 158.247.0.0-158.247.7.255\""},{"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 2020-03-05 00:54 UTC, THE MCCALL PATTERN COMPANY, INC. (ARIN) to Vitalwerks Internet Solutions, LLC (ARIN); resources moved: 158.247.0.0/21"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200303.gz","retrieved_at":"2026-10-12T22:20:08+00:00","summary":"ARIN delegated statistics 2020-03-03 (produced 2020-03-03T15:00:13+00:00), before the report: assigned (dated 1991-05-16)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2020/delegated-arin-extended-20200305.gz","retrieved_at":"2026-10-12T22:20:13+00:00","summary":"ARIN delegated statistics 2020-03-05 (produced 2020-03-05T15:00:13+00:00), after the report: allocated (dated 2020-03-04)"}]}],"classification_history":{"52fafba69d593241":[{"raw_change_id":577181,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:30+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Vitalwerks Internet Solutions, LLC (ARIN) to No-IP (ARIN) on 2026-09-02 15:30 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."}],"39be592da8a9d2d1":[{"raw_change_id":164412,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.0","classified_at":"2026-10-13T03:47:27+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from THE MCCALL PATTERN COMPANY, INC. (ARIN) to Vitalwerks Internet Solutions, LLC (ARIN) on 2020-03-05 00:54 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":164412,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.1","classified_at":"2026-10-13T08:06:45+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from THE MCCALL PATTERN COMPANY, INC. (ARIN) to Vitalwerks Internet Solutions, LLC (ARIN) on 2020-03-05 00:54 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":164412,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.3.2","classified_at":"2026-10-13T14:49:30+00:00","current":0,"public_explanation":"ARIN's transfer log records a transfer from THE MCCALL PATTERN COMPANY, INC. (ARIN) to Vitalwerks Internet Solutions, LLC (ARIN) on 2020-03-05 00:54 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."},{"raw_change_id":164412,"classification_code":"INTRA_RIR_TRANSFER","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-13T23:52:46+00:00","current":1,"public_explanation":"ARIN's transfer log records a transfer from THE MCCALL PATTERN COMPANY, INC. (ARIN) to Vitalwerks Internet Solutions, LLC (ARIN) on 2020-03-05 00:54 UTC. ARIN-Issued lists it as \"Add\" because the registration changed hands; it is not a new allocation from ARIN."}]},"arin_statistics_now":{"status":"allocated (dated 2020-03-04)"}}