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
2006-02-09 818-584-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2006-02-02 818-736-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN BRBN CA
2006-02-02 818-922-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2006-02-01 818-476-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2006-02-01 818-942-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2006-01-20 818-267-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-20 818-285-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-20 818-325-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-20 818-373-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-20 818-536-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-20 818-742-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-20 818-817-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2006-01-15 818-267-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2006-01-15 818-294-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2006-01-15 818-377-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2006-01-15 818-476-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 GLENDALE CA
2006-01-15 818-671-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2006-01-15 818-836-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2006-01-13 818-276-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2006-01-13 818-299-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NO HOLLYWD CA
2006-01-13 818-391-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BRBN BRBN CA
2006-01-13 818-391-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BRBN BRBN CA
2006-01-13 818-942-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2006-01-12 818-322-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2006-01-12 818-322-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2006-01-12 818-322-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2006-01-12 818-836-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2006-01-12 818-836-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2006-01-11 818-857-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D CANOGAPARK CA
2006-01-11 818-914-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2006-01-09 818-303-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2006-01-09 818-303-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2006-01-09 818-303-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2006-01-09 818-391-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2006-01-09 818-391-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2006-01-05 818-245-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2006-01-05 818-245-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2005-12-29 818-528-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2005-12-29 818-528-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2005-12-29 818-528-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2005-12-29 818-528-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2005-12-27 818-239-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2005-12-27 818-306-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LACRSCENTA CA
2005-12-21 818-267-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-12-21 818-401-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 RESEDA CA
2005-12-21 818-671-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2005-12-20 818-263-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-12-20 818-263-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-12-20 818-306-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2005-12-20 818-464-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS 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.