NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 424
ONVOY, LLC - CA 15
OPENTACT INC. 1
NEW CINGULAR WIRELESS PCS, LLC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2024-01-03 424-495-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 LOMITA CA
2023-12-27 424-504-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CMTN CMTN CA
2023-12-27 424-504-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CMTN CMTN CA
2023-12-27 424-504-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CMTN CMTN CA
2023-12-21 424-461-7XXX 7000–7999Assigned COMMIO, LLC 939H LOMITA CA
2023-12-21 424-476-2XXX 2000–2999Assigned COMMIO, LLC 939H REDONDO CA
2023-12-21 424-476-3XXX 3000–3999Assigned COMMIO, LLC 939H REDONDO CA
2023-12-21 424-476-9XXX 9000–9999Assigned COMMIO, LLC 939H REDONDO CA
2023-12-21 424-492-1XXX 1000–1999Assigned COMMIO, LLC 939H TORRANCE CA
2023-12-21 424-492-8XXX 8000–8999Assigned COMMIO, LLC 939H TORRANCE CA
2023-12-21 424-494-2XXX 2000–2999Assigned COMMIO, LLC 939H SAN PEDRO CA
2023-12-21 424-494-3XXX 3000–3999Assigned COMMIO, LLC 939H SAN PEDRO CA
2023-12-21 424-494-4XXX 4000–4999Assigned COMMIO, LLC 939H SAN PEDRO CA
2023-12-21 424-494-5XXX 5000–5999Assigned COMMIO, LLC 939H SAN PEDRO CA
2023-12-21 424-503-0XXX 0000–0999Assigned COMMIO, LLC 939H INGLEWOOD CA
2023-12-21 424-503-1XXX 1000–1999Assigned COMMIO, LLC 939H INGLEWOOD CA
2023-12-21 424-503-8XXX 8000–8999Assigned COMMIO, LLC 939H INGLEWOOD CA
2023-12-21 424-667-1XXX 1000–1999Assigned COMMIO, LLC 939H LOMITA CA
2023-12-21 424-998-0XXX 0000–0999Assigned COMMIO, LLC 939H HAWTHORNE CA
2023-12-21 424-998-1XXX 1000–1999Assigned COMMIO, LLC 939H HAWTHORNE CA
2023-12-11 424-998-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HAWTHORNE CA
2023-12-05 424-504-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CMTN CMTN CA
2023-12-04 424-498-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HAWTHORNE CA
2023-12-04 424-498-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HAWTHORNE CA
2023-12-04 424-498-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HAWTHORNE CA
2023-12-01 424-496-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2023-12-01 424-496-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2023-12-01 424-496-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2023-11-28 424-492-0XXX 0000–0999Assigned TELNYX LLC 073H TORRANCE CA
2023-11-09 424-493-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MALIBU CA
2023-10-26 424-503-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 INGLEWOOD CA
2023-10-10 424-724-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2023-10-10 424-724-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2023-10-10 424-867-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2023-10-03 424-483-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H W ANGELES CA
2023-10-03 424-483-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H W ANGELES CA
2023-10-03 424-483-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H W ANGELES CA
2023-10-03 424-483-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H W ANGELES CA
2023-10-03 424-483-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H W ANGELES CA
2023-10-03 424-487-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SNMN SNMN CA
2023-10-03 424-490-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SNMN SNMN CA
2023-10-03 424-490-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SNMN SNMN CA
2023-10-03 424-490-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SNMN SNMN CA
2023-10-03 424-850-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 EL SEGUNDO CA
2023-10-03 424-850-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 EL SEGUNDO CA
2023-10-03 424-850-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 EL SEGUNDO CA
2023-10-02 424-497-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C HAWTHORNE CA
2023-10-02 424-497-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C HAWTHORNE CA
2023-10-02 424-497-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C HAWTHORNE CA
2023-10-02 424-498-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C HAWTHORNE CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.