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
— 419-291 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
— 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

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.