NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 818
BANDWIDTH.COM CLEC, LLC - CA 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
2005-12-20 818-464-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-12-20 818-665-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C AGOURA CA
2005-12-16 818-581-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2005-12-16 818-864-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PSDN LACN CA
2005-12-12 818-263-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-12-12 818-263-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-12-12 818-263-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-12-12 818-263-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-12-07 818-456-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2005-12-07 818-676-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2005-12-06 818-983-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-12-06 818-983-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-12-06 818-983-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D VAN NUYS CA
2005-12-05 818-299-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2005-12-05 818-299-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2005-12-05 818-299-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2005-12-05 818-979-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2005-12-05 818-979-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2005-11-30 818-302-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2005-11-30 818-466-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
2005-11-29 818-484-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2005-11-23 818-807-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-11-22 818-476-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2005-11-21 818-574-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-11-18 818-584-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2005-11-14 818-746-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CANOGAPARK CA
2005-11-11 818-876-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2005-11-10 818-338-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2005-11-10 818-435-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NORTHRIDGE CA
2005-11-10 818-435-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NORTHRIDGE CA
2005-11-10 818-575-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2005-11-08 818-668-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RESEDA CA
2005-11-02 818-294-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2005-10-28 818-741-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D SNFN SNFN CA
2005-10-28 818-793-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-10-27 818-493-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2005-10-24 818-322-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2005-10-20 818-238-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2005-10-20 818-534-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2005-10-20 818-742-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-10-13 818-863-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 GLENDALE CA
2005-10-10 818-793-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-10-07 818-661-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2005-10-07 818-661-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2005-10-07 818-668-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C RESEDA CA
2005-10-07 818-703-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2005-10-07 818-703-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2005-10-06 818-572-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2005-10-05 818-358-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2005-10-04 818-459-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE 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.