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
2011-04-28 818-724-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN SPLV CA
2011-04-28 818-724-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN SPLV CA
2011-04-28 818-900-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN GRHL CA
2011-04-28 818-900-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN GRHL CA
2011-04-19 818-252-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-19 818-253-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-19 818-351-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-19 818-351-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-19 818-394-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-19 818-533-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-19 818-533-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2011-04-13 818-485-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN PACM CA
2011-03-31 818-641-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN BRBN CA
2011-03-31 818-646-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2011-03-31 818-646-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2011-03-31 818-646-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2011-03-31 818-861-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN BRBN CA
2011-03-30 818-666-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2011-03-29 818-245-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GLENDALE CA
2011-03-29 818-925-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SUNLD TJNG CA
2011-03-22 818-276-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN BRBN CA
2011-03-22 818-579-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2011-03-21 818-488-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN GRHL CA
2011-03-16 818-485-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D SNFN PACM CA
2011-03-16 818-864-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PSDN LACN CA
2011-03-15 818-392-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2011-03-15 818-643-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO HOLLYWD CA
2011-03-15 818-646-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2011-03-15 818-646-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2011-03-11 818-646-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K VAN NUYS CA
2011-03-09 818-276-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BRBN BRBN CA
2011-03-09 818-751-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2011-03-08 818-221-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D SNFN SPLV CA
2011-03-08 818-221-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D SNFN SPLV CA
2011-03-08 818-626-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D NORTHRIDGE CA
2011-03-08 818-639-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN SNFN CA
2011-03-08 818-812-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NORTHRIDGE CA
2011-02-23 818-754-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D NO HOLLYWD CA
2011-02-17 818-466-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D CANOGAPARK CA
2011-02-15 818-561-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN BRBN CA
2011-02-15 818-646-1XXX 1000–1999Assigned CONNECTTO COMMUNICATIONS, INC. - CA 863D VAN NUYS CA
2011-02-10 818-292-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2011-02-10 818-584-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2011-02-08 818-751-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2011-02-08 818-751-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2011-02-07 818-900-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN GRHL CA
2011-02-04 818-643-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2011-01-31 818-643-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2011-01-31 818-945-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2011-01-27 818-643-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD 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.