NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, all time — NPA 419
OHIO BELL TEL CO 114
FRONTIER NORTH, INC. - OH 114
BRIGHTSPEED OF NORTHWEST OHIO, INC. 114
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 100
NEW CINGULAR WIRELESS PCS, LLC - IL 52
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
— 419-331 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LIMA OH
— 419-332 not yet reported which blocks → OHIO BELL TEL CO 9321 FREMONT OH
— 419-333 1XXX8XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 FREMONT OH
— 419-334 not yet reported which blocks → OHIO BELL TEL CO 9321 FREMONT OH
— 419-335 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WAUSEON OH
— 419-336 0XXX2XXX6XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 NORTH STAR OH
— 419-337 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WAUSEON OH
— 419-338 9XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ELIDA OH
— 419-339 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ELIDA OH
— 419-340 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-341 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PT CLINTON OH
— 419-342 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SHELBY OH
— 419-343 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-344 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-345 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-346 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-347 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SHELBY OH
— 419-348 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FINDLAY OH
— 419-349 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-350 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-351 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-352 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 BOWLNGGREN OH
— 419-353 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 BOWLNGGREN OH
— 419-354 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 BOWLNGGREN OH
— 419-355 not yet reported which blocks → OHIO BELL TEL CO 9321 FREMONT OH
— 419-356 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-357 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SANDUSKY OH
— 419-358 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BLUFFTON OH
— 419-359 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → OHIO BELL TEL CO 9321 BLOOMINGVL OH
— 419-360 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-361 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TOLEDO OH
— 419-362 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 JOHNSVILLE OH
— 419-363 8XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ROCKFORD OH
— 419-365 2XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 ARLINGTON OH
— 419-366 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SANDUSKY OH
— 419-367 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-368 2XXX which blocks → FRONTIER NORTH, INC. - OH 0615 HAYESVILLE OH
— 419-369 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BLUFFTON OH
— 419-370 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SANDUSKY OH
— 419-371 0XXX2XXX7XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 LIMA OH
— 419-372 not yet reported which blocks → ONVOY, LLC - OH 464C BOWLNGGREN OH
— 419-373 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 BOWLNGGREN OH
— 419-374 1XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RIDGEVLCOR OH
— 419-375 5XXX6XXX7XXX8XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 FTRECOVERY OH
— 419-376 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-377 1XXX2XXX4XXX5XXX6XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-380 7XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-381 4XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-382 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-383 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH

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.