NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 714
PACIFIC BELL 266
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 78
NEW CINGULAR WIRELESS PCS, LLC 72
METROPCS NETWORKS, LLC 62
T-MOBILE USA, INC. 56
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 714-672 not yet reported which blocks → PACIFIC BELL 9740 BREA CA
— 714-674 2XXX which blocks → PACIFIC BELL 9740 BREA CA
— 714-676 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 BUENA PARK CA
— 714-677 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WESTMINSTR CA
— 714-678 7XXX8XXX which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ANAHEIM CA
— 714-679 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ANA CA
— 714-680 not yet reported which blocks → PACIFIC BELL 9740 FULLERTON CA
— 714-681 0XXX1XXX2XXX6XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 FULLERTON CA
— 714-682 not yet reported which blocks → 33 WIRELESS INC. 6967 SANTA ANA CA
— 714-683 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C ANAHEIM CA
— 714-684 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BUENA PARK CA
— 714-685 not yet reported which blocks → PACIFIC BELL 9740 ORANGE CA
— 714-687 8XXX which blocks → PACIFIC BELL 9740 ANAHEIM CA
— 714-688 0XXX1XXX6XXX · 3 holders which blocks → PACIFIC BELL 9740 ANAHEIM CA
— 714-689 1XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANTA ANA CA
— 714-690 not yet reported which blocks → PACIFIC BELL 9740 BUENA PARK CA
— 714-691 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-692 4XXX6XXX · 2 holders which blocks → PACIFIC BELL 9740 YORBALINDA CA
— 714-693 not yet reported which blocks → PACIFIC BELL 9740 YORBALINDA CA
— 714-694 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PACIFIC BELL 9740 YORBALINDA CA
— 714-695 3XXX5XXX7XXX8XXX · 3 holders which blocks → PACIFIC BELL 9740 YORBALINDA CA
— 714-698 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HUNTITNBCH CA
— 714-700 not yet reported which blocks → CA
— 714-701 6XXX7XXX8XXX · 2 holders which blocks → PACIFIC BELL 9740 YORBALINDA CA
— 714-703 9XXX which blocks → PACIFIC BELL 9740 GARDEN GRV CA
— 714-704 not yet reported which blocks → PACIFIC BELL 9740 ORANGE CA
— 714-705 0XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → PACIFIC BELL 9740 GARDEN GRV CA
— 714-706 0XXX1XXX2XXX3XXX5XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BREA CA
— 714-707 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 SILVERADO CA
— 714-708 not yet reported which blocks → PACIFIC BELL 9740 SANTA ANA CA
— 714-710 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → COMCAST PHONE OF CALIFORNIA, LLC 394L SILVERADO CA
— 714-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX CA
— 714-712 0XXX which blocks → PACIFIC BELL 9740 ORANGE CA
— 714-714 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ANA CA
— 714-715 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CYPRESS CA
— 714-716 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SANTA ANA CA
— 714-719 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 GARDEN GRV CA
— 714-723 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 CYPRESS CA
— 714-729 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PLACENTIA CA
— 714-730 not yet reported which blocks → PACIFIC BELL 9740 SANTA ANA CA
— 714-731 not yet reported which blocks → PACIFIC BELL 9740 SANTA ANA CA
— 714-732 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PACIFIC BELL 9740 FULLERTON CA
— 714-733 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → IP HORIZON LLC 515J CYPRESS CA
— 714-734 not yet reported which blocks → PACIFIC BELL 9740 SANTA ANA CA
— 714-735 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BUENA PARK CA
— 714-736 not yet reported which blocks → PACIFIC BELL 9740 BUENA PARK CA
— 714-738 not yet reported which blocks → PACIFIC BELL 9740 FULLERTON CA
— 714-739 not yet reported which blocks → PACIFIC BELL 9740 BUENA PARK CA
— 714-740 5XXX7XXX8XXX9XXX · 4 holders which blocks → PACIFIC BELL 9740 GARDEN GRV CA
— 714-741 not yet reported which blocks → PACIFIC BELL 9740 GARDEN GRV CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.