NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 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
— 419-241 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-242 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-243 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-244 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-245 4XXX8XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-246 1XXX7XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-247 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-248 9XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-249 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-250 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-251 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-252 0XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-253 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MARENGO OH
— 419-254 9XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-255 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-256 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 GRELTNMLNT OH
— 419-257 6XXX8XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 NO BALTIMR OH
— 419-258 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 ANTWERP OH
— 419-259 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-260 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-261 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-262 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-263 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - OH 0615 PAYNE OH
— 419-264 3XXX4XXX6XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 HOLGATE OH
— 419-265 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-266 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-267 not yet reported which blocks → RIDGEVILLE TEL. CO. 0654 RIDGEVLCOR OH
— 419-268 4XXX8XXX which blocks → FRONTIER NORTH, INC. - OH 0615 CELINA OH
— 419-269 5XXX7XXX8XXX which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-270 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-271 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANDUSKY OH
— 419-272 0XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 EDON OH
— 419-273 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 FOREST OH
— 419-274 6XXX7XXX8XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 HAMLER OH
— 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

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.