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
2014-04-10 818-964-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-04-10 818-964-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-04-10 818-964-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-04-10 818-964-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-04-10 818-964-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-04-10 818-964-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-04-03 818-946-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2014-04-03 818-946-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2014-04-01 818-712-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
2014-03-25 818-927-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2014-03-25 818-927-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2014-03-24 818-946-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2014-03-13 818-659-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PSDN LACN CA
2014-03-13 818-722-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SNFN SPLV CA
2014-03-13 818-797-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LACRSCENTA CA
2014-03-07 818-813-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2014-03-07 818-860-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2014-03-06 818-927-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2014-03-05 818-927-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D NO HOLLYWD CA
2014-02-28 818-927-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2014-02-27 818-330-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LACRSCENTA CA
2014-02-27 818-369-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LACRSCENTA CA
2014-02-27 818-626-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORTHRIDGE CA
2014-02-27 818-796-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2014-02-27 818-796-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2014-02-27 818-796-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2014-02-27 818-796-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2014-02-27 818-853-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2014-02-27 818-927-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2014-02-27 818-927-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2014-02-27 818-927-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2014-02-27 818-927-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2014-02-25 818-796-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D VAN NUYS CA
2014-02-24 818-722-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN SPLV CA
2014-02-10 818-964-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E AGOURA CA
2014-02-10 818-964-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E AGOURA CA
2014-01-31 818-860-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2014-01-30 818-852-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-30 818-852-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2014-01-24 818-796-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2014-01-24 818-927-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2014-01-10 818-616-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2014-01-08 818-561-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2013-12-12 818-659-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PSDN LACN 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.