NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

357 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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 27
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
2002-04-22 814-350 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MEADVILLE PA
2002-04-22 830-299 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KENEDY TX
2002-04-22 830-428 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BOERNE TX
2002-04-22 931-303 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TN 4806 COOKEVILLE TN
2002-04-22 931-304 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MCMINNVL TN
2002-04-22 985-245 not yet reported which blocks → ADVANCED TEL., INC. - LA 8839 MORGANCITY LA
2002-04-22 989-243 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ATLANTA MI
2002-04-22 989-416 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J AUBURN MI
2002-04-22 989-485 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J AKRON MI
2002-04-22 989-507 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ROSE CITY MI
2002-04-22 989-524 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J STERLING MI
2002-04-22 989-529 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
2002-04-22 989-629 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ALMA MI
2002-04-22 989-676 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J PRESCOTT MI
2002-04-22 989-782 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J LUPTON MI
2002-04-22 989-825 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ALGER MI
2002-04-21 440-625 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K BEREA OH
2002-04-21 614-626 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K REYNOLDSBG OH
2002-04-19 224-402 6XXX7XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 ELGIN IL
2002-04-19 312-752 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2002-04-19 318-217 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WATERPROOF LA
2002-04-19 318-231 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LKPROVIDNC LA
2002-04-19 318-233 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GEORGETOWN LA
2002-04-19 318-421 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONTEREY LA
2002-04-19 318-531 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SICILY IS LA
2002-04-19 337-324 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C VINTON LA
2002-04-19 337-340 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 MERRYVILLE LA
2002-04-19 419-975 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F SANDUSKY OH
2002-04-19 440-590 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2002-04-19 443-865 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BALTIMORE MD
2002-04-19 480-467 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 7552 PHOENIX AZ
2002-04-19 480-748 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 7552 PHOENIX AZ
2002-04-19 505-795 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 SANTA FE NM
2002-04-19 603-918 1XXX2XXX3XXX4XXX which blocks → BELL ATLANTIC MOBILE, INC 6386 HAMPTON NH
2002-04-19 603-986 0XXX1XXX2XXX3XXX4XXX which blocks → BELL ATLANTIC MOBILE, INC 6386 NO CONWAY NH
2002-04-19 609-770 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J WILDWOOD NJ
2002-04-19 609-961 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 AVALON NJ
2002-04-19 616-607 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRANDHAVEN MI
2002-04-19 623-748 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2002-04-19 724-638 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 GREENVILLE PA
2002-04-19 863-522 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 WAUCHULA FL
2002-04-19 863-523 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 OKEECHOBEE FL
2002-04-19 863-524 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 MOOREHAVEN FL
2002-04-19 863-525 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 LAKEPLACID FL
2002-04-19 863-527 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 CLEWISTON FL
2002-04-19 863-571 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 SEBRING FL
2002-04-19 863-572 not yet reported which blocks → NOVUS COMMUNICATIONS, INC. - FL 9324 AVON PARK FL
2002-04-18 208-921 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 BOISE ID
2002-04-18 225-270 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2002-04-18 276-591 0–9 XXXall 10 · 3 holders which blocks → MOUNTAINET TELEPHONE COMPANY - VA 3185 BRISTOL VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.