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
2001-04-17 714-269 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-270 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-271 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-272 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-273 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-299 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-305 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-306 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-307 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-322 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-325 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-326 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-343 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-391 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2001-04-17 714-394 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-473 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-749 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-812 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-813 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-814 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-04-17 714-815 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANAHEIM CA
2001-03-22 714-857 not yet reported which blocks → SHELCOMM 0051 WESTMINSTR CA
— 714-200 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
— 714-201 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-203 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PLACENTIA CA
— 714-205 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 6906 ANAHEIM CA
— 714-206 none assigned yet which blocks → METROPCS NETWORKS, LLC 899D SANTA ANA CA
— 714-207 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 6906 ANAHEIM CA
— 714-209 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CYPRESS CA
— 714-210 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA ANA CA
— 714-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX CA
— 714-212 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-213 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → PACIFIC BELL 9740 FULLERTON CA
— 714-214 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-216 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-218 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-219 not yet reported which blocks → SPOK, INC. 6630 ANAHEIM CA
— 714-220 7XXX8XXX which blocks → PACIFIC BELL 9740 CYPRESS CA
— 714-221 not yet reported which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ORANGE CA
— 714-222 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WESTMINSTR CA
— 714-223 not yet reported which blocks → PACIFIC BELL 9740 PLACENTIA CA
— 714-224 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ANAHEIM CA
— 714-225 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-226 1XXX which blocks → PACIFIC BELL 9740 CYPRESS CA
— 714-227 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ANA CA
— 714-228 not yet reported which blocks → PACIFIC BELL 9740 BUENA PARK CA
— 714-229 not yet reported which blocks → PACIFIC BELL 9740 CYPRESS CA
— 714-230 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 WESTMINSTR CA
— 714-231 none assigned yet which blocks → METROPCS NETWORKS, LLC 899D ANAHEIM CA
— 714-232 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 BUENA PARK 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.