NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 949
NEW CINGULAR WIRELESS PCS, LLC 18
ONVOY, LLC - CA 2
OPENTACT INC. 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
2007-07-27 949-542-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2007-07-18 949-610-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2007-06-20 949-613-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D LAGUNA BCH CA
2007-06-20 949-613-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D LAGUNA BCH CA
2007-06-20 949-613-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D LAGUNA BCH CA
2007-06-20 949-613-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D LAGUNA BCH CA
2007-06-14 949-715-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LAGUNA BCH CA
2007-06-08 949-242-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2007-06-08 949-648-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2007-06-08 949-648-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2007-05-30 949-545-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2007-05-29 949-242-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J IRVINE CA
2007-05-18 949-566-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D NEWPORTBCH CA
2007-05-18 949-566-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D NEWPORTBCH CA
2007-05-18 949-566-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D NEWPORTBCH CA
2007-05-16 949-554-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2007-05-16 949-609-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SADLBK VLY CA
2007-05-15 949-542-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2007-05-10 949-242-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 IRVINE CA
2007-05-10 949-242-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 IRVINE CA
2007-05-10 949-242-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 IRVINE CA
2007-05-10 949-242-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 IRVINE CA
2007-04-27 949-242-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 IRVINE CA
2007-04-26 949-325-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CAPITRNVLY CA
2007-04-17 949-315-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LAGUNA BCH CA
2007-04-17 949-573-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2007-04-05 949-900-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2007-04-05 949-900-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2007-03-30 949-554-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWPORTBCH CA
2007-03-14 949-242-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 IRVINE CA
2007-03-14 949-870-1XXX 1000–1999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2007-03-01 949-336-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2007-03-01 949-336-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2007-02-23 949-545-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAPITRNVLY CA
2007-02-21 949-335-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2007-02-21 949-813-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D LAGUNA BCH CA
2007-02-15 949-297-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SADLBK VLY CA
2007-02-15 949-334-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SADLBK VLY CA
2007-02-15 949-420-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SADLBK VLY CA
2007-02-15 949-478-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NEWPORTBCH CA
2007-02-15 949-478-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NEWPORTBCH CA
2007-02-15 949-616-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SADLBK VLY CA
2007-02-15 949-732-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2007-02-15 949-732-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2007-02-15 949-732-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2007-02-15 949-732-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2007-02-12 949-485-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2007-02-12 949-485-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2007-01-31 949-680-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2007-01-25 949-732-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 IRVINE 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.