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
— 419-225 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LIMA OH
— 419-226 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LIMA OH
— 419-227 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LIMA OH
— 419-228 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LIMA OH
— 419-229 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LIMA OH
— 419-230 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
— 419-231 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
— 419-232 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 VAN WERT OH
— 419-233 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
— 419-234 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
— 419-235 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
— 419-236 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
— 419-237 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 FAYETTE OH
— 419-238 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 VAN WERT OH
— 419-239 0XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SANDUSKY OH
— 419-240 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 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

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.