NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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, last 30 days
8X8, INC. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 20
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
2002-02-22 304-953 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → METROPCS, INC. 5562 LOGAN WV
2002-02-22 304-989 1XXX6XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2002-02-22 310-462 none assigned yet which blocks → T-MOBILE USA, INC. 6529 INGLEWOOD CA
2002-02-22 408-368 1XXX2XXX3XXX4XXX5XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SUNNYVALE CA
2002-02-22 408-417 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS WEST CA
2002-02-22 443-746 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MD 6119 EASTON MD
2002-02-22 443-747 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → CORE COMMUNICATIONS, INC.- MD 2593 PT DEPOSIT MD
2002-02-22 530-417 6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PLVL WEST CA
2002-02-22 540-830 6XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HARRISONBG VA
2002-02-22 540-910 4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WAYNESBORO VA
2002-02-22 603-530 1XXX4XXX5XXX8XXX · 3 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 BRISTOL NH
2002-02-22 603-631 4XXX5XXX6XXX7XXX which blocks → UNITED STATES CELLULAR - NH 6290 LANCASTER NH
2002-02-22 603-660 3XXX4XXX5XXX7XXX · 2 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 GOFFSTOWN NH
2002-02-22 603-915 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 GORHAM NH
2002-02-22 603-966 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 NASHUA NH
2002-02-22 603-991 1XXX6XXX7XXX8XXX9XXX which blocks → BELL ATLANTIC MOBILE, INC 6386 LITTLETON NH
2002-02-22 626-315 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AT&T - LOCAL 7421 EL MONTE CA
2002-02-22 703-468 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HAYMARKET VA
2002-02-22 707-245 1XXX2XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LAKEPORT CA
2002-02-22 708-310 3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2002-02-22 714-552 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ANA CA
2002-02-22 714-580 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2002-02-22 754-224 2XXX3XXX4XXX5XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FTLAUDERDL FL
2002-02-22 754-234 not yet reported which blocks → METROPCS, INC. 5562 FTLAUDERDL FL
2002-02-22 754-235 not yet reported which blocks → METROPCS, INC. 5562 POMPANOBCH FL
2002-02-22 760-238 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 INDIO CA
2002-02-22 760-239 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 RAMONA CA
2002-02-22 805-310 4XXX5XXX · 2 holders which blocks → METROPCS, INC. 5562 SANTAMARIA CA
2002-02-22 805-315 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → METROPCS, INC. 5562 LOMPOC CA
2002-02-22 848-218 4XXX5XXX7XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 MIDDLETOWN NJ
2002-02-22 848-219 7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 METUCHEN NJ
2002-02-22 862-215 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 NEWARK NJ
2002-02-22 862-778 none assigned yet which blocks → VERIZON NEW JERSEY, INC. 9206 WHIPPANY NJ
2002-02-22 865-285 0XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J HARRIMAN TN
2002-02-22 909-967 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2002-02-22 925-203 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PITTSBURG CA
2002-02-22 949-355 1XXX2XXX3XXX5XXX which blocks → METROPCS NETWORKS, LLC 899D NEWPORTBCH CA
2002-02-22 954-347 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLLYWOOD FL
2002-02-22 973-527 0–9 XXXall 10 · 7 holders which blocks → PAETEC ITEL, LLC 829J NETCONG NJ
2002-02-21 205-267 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 BESSEMER AL
2002-02-21 205-304 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 DORA AL
2002-02-21 205-386 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 GARDENDALE AL
2002-02-21 205-390 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 GRAYSVILLE AL
2002-02-21 209-275 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MANTECA CA
2002-02-21 209-277 1XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 TURLOCK CA
2002-02-21 216-220 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MONTRSE OH
2002-02-21 224-588 1XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 WHEELING IL
2002-02-21 253-655 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WA 6121 GRAHAM WA
2002-02-21 253-656 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WA 6121 KENT WA
2002-02-21 262-429 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WEST BEND WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.