NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 714
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2004-09-14 714-277-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ANA CA
2004-09-13 714-552-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-09-10 714-415-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SANTA ANA CA
2004-09-08 714-756-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HUNTITNBCH CA
2004-09-07 714-388-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FULLERTON CA
2004-09-03 714-459-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FULLERTON CA
2004-09-01 714-389-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ANA CA
2004-08-31 714-224-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-08-31 714-482-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREA CA
2004-08-25 714-494-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREA CA
2004-08-20 714-602-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ORANGE CA
2004-08-19 714-460-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
2004-08-19 714-460-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
2004-08-19 714-460-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
2004-08-19 714-460-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
2004-08-19 714-460-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
2004-08-19 714-492-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SANTA ANA CA
2004-08-19 714-492-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
2004-08-19 714-613-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SILVERADO CA
2004-08-16 714-489-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GARDEN GRV CA
2004-08-10 714-363-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ORANGE CA
2004-08-10 714-646-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PLACENTIA CA
2004-08-06 714-902-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-08-06 714-902-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-08-06 714-902-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-08-03 714-232-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BUENA PARK CA
2004-07-30 714-261-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 YORBALINDA CA
2004-07-19 714-604-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ANA CA
2004-07-19 714-955-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ANA CA
2004-07-19 714-955-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ANA CA
2004-07-16 714-955-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2004-07-16 714-955-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2004-07-13 714-209-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CYPRESS CA
2004-07-09 714-209-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CYPRESS CA
2004-07-06 714-244-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ORANGE CA
2004-07-06 714-244-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ORANGE CA
2004-07-06 714-468-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2004-07-06 714-468-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2004-07-06 714-468-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2004-07-06 714-468-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2004-07-06 714-519-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FULLERTON CA
2004-07-02 714-955-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ANA CA
2004-07-01 714-369-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HUNTITNBCH CA
2004-07-01 714-465-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HUNTITNBCH CA
2004-07-01 714-886-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CYPRESS CA
2004-06-22 714-333-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J ANAHEIM CA
2004-06-22 714-657-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-06-22 714-902-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-06-17 714-249-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L BUENA PARK CA
2004-06-16 714-369-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HUNTITNBCH 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.