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
2005-08-25 818-793-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-08-23 818-221-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNFN SPLV CA
2005-08-23 818-294-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2005-08-23 818-301-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO HOLLYWD CA
2005-08-23 818-334-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2005-08-23 818-356-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNFN SNFN CA
2005-08-23 818-356-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNFN SNFN CA
2005-08-23 818-369-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LACRSCENTA CA
2005-08-23 818-401-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RESEDA CA
2005-08-23 818-462-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RESEDA CA
2005-08-23 818-477-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NORTHRIDGE CA
2005-08-23 818-579-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO HOLLYWD CA
2005-08-23 818-579-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO HOLLYWD CA
2005-08-23 818-579-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO HOLLYWD CA
2005-08-23 818-671-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NORTHRIDGE CA
2005-08-23 818-671-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NORTHRIDGE CA
2005-08-23 818-671-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NORTHRIDGE CA
2005-08-23 818-936-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CANOGAPARK CA
2005-08-23 818-936-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CANOGAPARK CA
2005-08-23 818-936-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CANOGAPARK CA
2005-08-23 818-975-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RESEDA CA
2005-08-23 818-975-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C RESEDA CA
2005-08-17 818-456-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2005-08-16 818-300-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 RESEDA CA
2005-08-16 818-351-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2005-08-16 818-392-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2005-08-16 818-456-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2005-08-16 818-464-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2005-08-16 818-477-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NORTHRIDGE CA
2005-08-16 818-649-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2005-08-16 818-654-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C RESEDA CA
2005-08-16 818-658-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2005-08-16 818-748-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2005-08-16 818-748-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2005-08-16 818-804-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2005-08-10 818-271-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNFN GRHL CA
2005-08-05 818-665-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2005-08-05 818-665-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2005-08-05 818-670-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J VAN NUYS CA
2005-08-03 818-491-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN GRHL CA
2005-08-03 818-987-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-08-03 818-987-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-08-03 818-987-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-07-28 818-450-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2005-07-27 818-864-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PSDN LACN CA
2005-07-26 818-922-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-07-26 818-922-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2005-07-21 818-224-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2005-07-21 818-224-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2005-07-21 818-304-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 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.