NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

355 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, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
2002-09-10 774-722 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
2002-09-06 541-403 3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → UNITED STATES CELLULAR - OR 6349 BAKER OR
2002-09-06 541-413 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → UNITED STATES CELLULAR - OR 6349 BURNS OR
2002-09-06 606-748 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FLEMINGSBG KY
2002-09-06 614-399 not yet reported which blocks → SPOK, INC. 6630 COLUMBUS OH
2002-09-06 631-833 2XXX3XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 RIVERHEAD NY
2002-09-06 719-297 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CO 6118 LIMON CO
2002-09-06 754-321 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 FTLAUDERDL FL
2002-09-06 754-322 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 FTLAUDERDL FL
2002-09-06 754-323 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 FTLAUDERDL FL
2002-09-06 754-581 7XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLLYWOOD FL
2002-09-06 770-873 not yet reported which blocks → METROPCS, INC. 5562 ATLANTA NE GA
2002-09-06 850-632 1XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GREENWOOD FL
2002-09-06 850-633 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MARIANNA FL
2002-09-06 850-634 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CRESTVIEW FL
2002-09-06 856-364 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 VINELAND NJ
2002-09-06 863-485 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → CENTURYLINK OF FLORIDA, INC. (UNITED) 0341 ARCADIA FL
2002-09-06 863-486 0XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → CENTURYLINK OF FLORIDA, INC. (UNITED) 0341 BOWLNGGREN FL
2002-09-06 863-622 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FORT MEADE FL
2002-09-06 863-623 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CENTURYLINK OF FLORIDA, INC. (UNITED) 0341 OKEECHOBEE FL
2002-09-06 909-997 7XXX8XXX which blocks → T-MOBILE USA, INC. 6529 FONTANA CA
2002-09-06 912-722 2XXX4XXX5XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 WAYCROSS GA

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.