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
— 828-310 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HICKORY NC
— 828-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 828-312 none assigned yet which blocks → SUNCOM DBA T-MOBILE USA 8645 HICKORY NC
— 828-313 none assigned yet which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 GRANITEFLS NC
— 828-314 not yet reported which blocks → SPOK, INC. 6630 MORGANTON NC
— 828-315 0XXX1XXX which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-316 0XXX2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 WAYNESVL NC
— 828-317 0XXX2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 MARION NC
— 828-318 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 ASHEVILLE NC
— 828-320 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HICKORY NC
— 828-321 6XXX7XXX8XXX · 3 holders which blocks → FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 0509 ANDREWS NC
— 828-322 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-323 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-324 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-325 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-326 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-327 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-328 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-329 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ARDEN NC
— 828-336 not yet reported which blocks → NC
— 828-340 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J SYLVA NC
— 828-344 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - NC 638E NEWTON NC
— 828-345 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-348 2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ASHEVILLE NC
— 828-349 not yet reported which blocks → FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 0509 FRANKLIN NC
— 828-350 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ASHEVILLE NC
— 828-351 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E RUTHEFRDTN NC
— 828-352 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CAROLINA WEST WIRELESS, INC. 5932 TAYLORSVL NC
— 828-356 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WAYNESVL NC
— 828-357 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J BLACK MT NC
— 828-365 0XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J ENKACANDLR NC
— 828-369 not yet reported which blocks → FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 0509 FRANKLIN NC
— 828-373 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NC 638E NEWLAND NC
— 828-374 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NC 638E SPRUCEPINE NC
— 828-375 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RUTHEFRDTN NC
— 828-377 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WAYNESVL NC
— 828-378 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TELNYX LLC 073H ASHEVILLE NC
— 828-381 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HICKORY NC
— 828-382 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FORESTCITY NC
— 828-383 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NC 638E LENOIR NC
— 828-385 4XXX5XXX8XXX · 3 holders which blocks → UNITED STATES CELLULAR - NC 6282 SPRUCEPINE NC
— 828-386 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BOONE NC
— 828-387 none assigned yet which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 BEECH MT NC
— 828-389 5XXX7XXX · 2 holders which blocks → FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 0509 HAYESVILLE NC
— 828-390 2XXX3XXX4XXX5XXX · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 MORGANTON NC
— 828-396 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 GRANITEFLS NC
— 828-397 9XXX which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HILDEBRAN NC
— 828-401 0XXX1XXX2XXX7XXX · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K ELLENBORO NC
— 828-402 not yet reported which blocks → SPOK, INC. 6630 MORGANTON NC
— 828-403 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MORGANTON NC

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.