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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-01-11 818-408-7XXX 7000–7999Assigned IP HORIZON LLC 515J SNFN SNFN CA
2005-01-11 818-408-8XXX 8000–8999Assigned IP HORIZON LLC 515J SNFN SNFN CA
2005-01-11 818-473-1XXX 1000–1999Assigned IP HORIZON LLC 515J SUNLD TJNG CA
2005-01-11 818-473-2XXX 2000–2999Assigned IP HORIZON LLC 515J SUNLD TJNG CA
2005-01-11 818-808-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-01-11 818-808-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-01-11 818-808-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-01-11 818-808-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VAN NUYS CA
2005-01-07 818-491-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2005-01-06 818-271-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2005-01-06 818-322-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN GRHL CA
2005-01-06 818-581-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN SNFN CA
2005-01-06 818-984-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-01-06 818-987-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2005-01-04 818-282-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2004-12-22 818-280-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2004-12-20 818-984-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D VAN NUYS CA
2004-12-17 818-232-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2004-12-17 818-272-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2004-12-15 818-235-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-12-14 818-300-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 RESEDA CA
2004-12-10 818-239-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2004-12-10 818-536-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2004-12-10 818-657-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D CANOGAPARK CA
2004-12-10 818-675-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-12-09 818-279-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LACRSCENTA CA
2004-12-08 818-309-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2004-12-08 818-309-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2004-12-06 818-270-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-12-06 818-284-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-12-06 818-284-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-12-06 818-332-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-12-06 818-358-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO HOLLYWD CA
2004-12-03 818-524-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BRBN BRBN CA
2004-12-03 818-524-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BRBN BRBN CA
2004-12-03 818-524-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BRBN BRBN CA
2004-12-03 818-524-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BRBN BRBN CA
2004-12-03 818-524-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BRBN BRBN CA
2004-12-02 818-296-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J GLENDALE CA
2004-11-24 818-495-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PSDN LACN CA
2004-11-24 818-568-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2004-11-23 818-975-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RESEDA CA
2004-11-19 818-230-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2004-11-19 818-232-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2004-11-19 818-237-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN BRBN CA
2004-11-12 818-442-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-12 818-442-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-12 818-442-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-12 818-442-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-12 818-442-7XXX 7000–7999Assigned 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.