NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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
— 419-275 not yet reported which blocks → HANSON COMMUNICATIONS OF OHIO, LLC-ORWELL 0649 BELMORE OH
— 419-276 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-277 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-278 4XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DESHLER OH
— 419-279 3XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-280 0XXX2XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-281 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 ASHLAND OH
— 419-282 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 ASHLAND OH
— 419-283 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-284 8XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LYKENS OH
— 419-285 6XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 PUT IN BAY OH
— 419-286 not yet reported which blocks → FT. JENNINGS TEL. CO. 0614 FTJENNINGS OH
— 419-287 2XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 PEMBERVL OH
— 419-288 5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 WAYNEBRDNR OH
— 419-289 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 ASHLAND OH
— 419-290 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-291 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-292 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-293 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 MCCOMB OH
— 419-294 not yet reported which blocks → OHIO BELL TEL CO 9321 UPSANDUSKY OH
— 419-295 8XXX9XXX which blocks → T-MOBILE USA, INC. 6529 MANSFIELD OH
— 419-296 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
— 419-297 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-298 4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - OH 0615 EDGERTON OH
— 419-299 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRONTIER NORTH, INC. - OH 0615 VAN BUREN OH
— 419-301 1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F PT CLINTON OH
— 419-302 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
— 419-303 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
— 419-304 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-305 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CELINA OH
— 419-306 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FINDLAY OH
— 419-307 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FREMONT OH
— 419-308 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BOWLNGGREN OH
— 419-309 5XXX6XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-310 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 UPSANDUSKY OH
— 419-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
— 419-312 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → NUSO, LLC 478J MANSFIELD OH
— 419-316 not yet reported which blocks → SPOK, INC. 6630 NEW RIEGEL OH
— 419-319 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 UPSANDUSKY OH
— 419-320 5XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-321 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-322 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-323 not yet reported which blocks → SPOK, INC. 6630 TOLEDO OH
— 419-324 4XXX5XXX6XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7158 TOLEDO OH
— 419-325 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-326 0XXX2XXX3XXX5XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 JENERA OH
— 419-327 0XXX7XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-328 not yet reported which blocks → SPOK, INC. 6630 TOLEDO OH
— 419-329 0XXX1XXX4XXX5XXX8XXX · 3 holders which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-330 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WAUSEON OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.