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
2006-06-05 714-787-5XXX 5000–5999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ORANGE CA
2006-06-05 714-823-2XXX 2000–2999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 GARDEN GRV CA
2006-06-05 714-983-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 PLACENTIA CA
2006-05-31 714-312-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 YORBALINDA CA
2006-05-26 714-725-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-05-26 714-866-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-05-26 714-866-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-05-26 714-866-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-05-26 714-866-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-05-26 714-868-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BUENA PARK CA
2006-05-09 714-274-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2006-05-09 714-866-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ANA CA
2006-05-05 714-858-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2006-05-05 714-858-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2006-05-05 714-866-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ANA CA
2006-05-03 714-591-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GARDEN GRV CA
2006-05-03 714-784-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREA CA
2006-05-03 714-861-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HUNTITNBCH CA
2006-05-02 714-661-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ANA CA
2006-04-19 714-707-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SILVERADO CA
2006-04-19 714-707-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SILVERADO CA
2006-04-19 714-725-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-04-11 714-485-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C YORBALINDA CA
2006-04-11 714-649-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SILVERADO CA
2006-04-11 714-752-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C BUENA PARK CA
2006-04-11 714-886-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C CYPRESS CA
2006-04-10 714-661-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2006-04-07 714-858-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-04-07 714-858-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-04-07 714-858-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-04-07 714-858-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-04-07 714-858-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-04-07 714-858-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-04-03 714-661-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-04-03 714-661-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-04-03 714-661-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2006-03-28 714-725-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-03-24 714-824-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA ANA CA
2006-03-24 714-824-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA ANA CA
2006-03-24 714-824-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA ANA CA
2006-03-22 714-386-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 YORBALINDA CA
2006-03-14 714-591-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2006-03-14 714-824-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2006-03-14 714-858-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ANAHEIM CA
2006-03-14 714-858-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ANAHEIM CA
2006-03-13 714-312-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 YORBALINDA CA
2006-03-13 714-768-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-03-13 714-768-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-03-09 714-519-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C FULLERTON CA
2006-03-09 714-591-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C GARDEN GRV 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.