NumberResearch Membership · Data 09/29/2026

Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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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Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 419-444 not yet reported which blocks → SPOK, INC. 6630 TOLEDO OH
— 419-445 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ARCHBOLD OH
— 419-446 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ARCHBOLD OH
— 419-447 not yet reported which blocks → OHIO BELL TEL CO 9321 TIFFIN OH
— 419-448 not yet reported which blocks → OHIO BELL TEL CO 9321 TIFFIN OH
— 419-449 not yet reported which blocks → SPOK, INC. 6630 TOLEDO OH
— 419-450 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TOLEDO OH
— 419-451 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PIONEER OH
— 419-452 0XXX2XXX3XXX4XXX5XXX8XXX · 5 holders which blocks → WINDSTREAM OHIO, LLC 0665 CHESTERFLD OH
— 419-453 not yet reported which blocks → OTTOVILLE MUTUAL TEL. CO. 0650 OTTOVILLE OH
— 419-454 1XXX5XXX6XXX8XXX · 3 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BLOOMDALE OH
— 419-455 0XXX1XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 TIFFIN OH
— 419-456 not yet reported which blocks → HANSON COMMUNICATIONS OF OHIO, LLC-ORWELL 0649 GILBOA OH
— 419-457 1XXX5XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 RISINGSUN OH
— 419-458 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 WHARTON OH
— 419-459 2XXX3XXX · 2 holders which blocks → FRONTIER COMMUNICATIONS OF MICHIGAN, INC. - OH 4418 COONEY OH
— 419-460 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-461 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-462 9XXX which blocks → FRONTIER NORTH, INC. - OH 0615 GALION OH
— 419-463 2XXX5XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FREMONT OH
— 419-465 0XXX1XXX6XXX7XXX8XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 MONROEVL OH
— 419-466 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-467 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-468 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 GALION OH
— 419-469 1XXX2XXX3XXX5XXX6XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-470 9XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-471 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-472 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-473 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-474 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-475 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-476 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-477 not yet reported which blocks → HANSON COMMUNICATIONS OF OHIO, LLC-ORWELL 0649 MOUNT CORY OH
— 419-478 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-479 8XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-480 7XXX9XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-481 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7158 TOLEDO OH
— 419-482 1XXX8XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 MAUMEE OH
— 419-483 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 BELLEVUE OH
— 419-484 0XXX1XXX3XXX4XXX8XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 BELLEVUE OH
— 419-485 7XXX which blocks → FRONTIER NORTH, INC. - OH 0615 MONTPELIER OH
— 419-486 9XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-487 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HICKSVILLE OH
— 419-488 not yet reported which blocks → OTTOVILLE MUTUAL TEL. CO. 0650 CLOVERDALE OH
— 419-490 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 TOLEDO OH
— 419-491 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLLAND OH
— 419-492 0XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 NEWWSHNGTN OH
— 419-494 0XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BOWLNGGREN OH
— 419-495 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 WILSHIWREN OH
— 419-496 0XXX2XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 ASHLAND OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.