NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2002-09-10 218-336 none assigned yet which blocks → ONVOY, LLC - MN 184D DULUTH MN
2002-09-10 251-227 4XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EVERGREEN AL
2002-09-10 251-363 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BREWTON AL
2002-09-10 252-588 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → UNITED STATES CELLULAR - NC 6282 OCRACOKE NC
2002-09-10 254-232 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LAGUNA PK TX
2002-09-10 334-296 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MONTGOMERY AL
2002-09-10 417-855 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 WILLOW SPG MO
2002-09-10 586-797 none assigned yet which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 UTICA MI
2002-09-10 601-609 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → METROPCS, INC. 5562 JACKSON MS
2002-09-10 601-610 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 HATTIESBG MS
2002-09-10 601-614 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MERIDIAN MS
2002-09-10 601-621 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MERIDIAN MS
2002-09-10 601-627 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 NEWTONHKRY MS
2002-09-10 618-319 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CARBONDALE IL
2002-09-10 618-688 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J EDGEMONT IL
2002-09-10 618-912 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BRIDGEPORT IL
2002-09-10 618-946 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JERSEYVL IL
2002-09-10 646-423 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2002-09-10 660-299 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 EDINA MO
2002-09-10 740-416 6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POMEROY OH
2002-09-10 740-418 none assigned yet which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSON OH
2002-09-10 774-722 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ORLEANS MA
2002-09-10 803-837 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2002-09-10 816-288 2XXX3XXX4XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 CAMERON MO
2002-09-10 845-644 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WURTSBORO NY
2002-09-10 845-699 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 MIDDLETOWN NY
2002-09-10 908-344 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 ELIZABETH NJ
2002-09-10 952-465 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 4139 TWINCITIES MN
2002-09-09 315-690 0XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NEWARK NY
2002-09-09 416-558 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2002-09-09 416-799 not yet reported which blocks → TELUS Mobility 8303 Toronto —
2002-09-09 434-214 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 FORK UNION VA
2002-09-09 450-253 not yet reported which blocks → Groupe Maskatel Quebec LP 8254 St-Thomas-d'Aquin —
2002-09-09 541-404 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 COOS BAY OR
2002-09-09 541-417 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → UNITED STATES CELLULAR - OR 6349 LAKEVIEW OR
2002-09-09 571-274 2XXX3XXX4XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN08 VA
2002-09-09 647-880 not yet reported which blocks → TELUS Mobility 8303 Toronto —
2002-09-09 704-308 2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 LINCOLNTON NC
2002-09-09 714-726 not yet reported which blocks → T-MOBILE USA, INC. 6529 FULLERTON CA
2002-09-09 818-913 7XXX which blocks → T-MOBILE USA, INC. 6529 GLENDALE CA
2002-09-09 902-697 not yet reported which blocks → Bragg Communications Inc. 4878 Wolfville —
2002-09-06 219-229 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MICHIGANCY IN
2002-09-06 228-235 not yet reported which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2002-09-06 229-949 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCHELLE GA
2002-09-06 260-232 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 WATERLOO IN
2002-09-06 267-688 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
2002-09-06 310-430 7XXX which blocks → T-MOBILE USA, INC. 6529 SNMN SNMN CA
2002-09-06 318-224 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 RUSTON LA
2002-09-06 352-573 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BROOKSVL FL
2002-09-06 541-256 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → UNITED STATES CELLULAR - OR 6349 HEPPNER OR

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.