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
— 419-646 not yet reported which blocks → VAUGHNSVILLE TEL. CO., INC. 0663 VAUGHNSVL OH
— 419-647 2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 SPENCERVL OH
— 419-648 1XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WESTMINSTR OH
— 419-649 4XXX6XXX7XXX · 3 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LAFAYETTE OH
— 419-651 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHLAND OH
— 419-652 not yet reported which blocks → NOVA TEL. CO. 0644 NOVA OH
— 419-653 not yet reported which blocks → BENTON RIDGE TEL. CO. 0590 NEWBAVARIA OH
— 419-654 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-655 1XXX4XXX5XXX7XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 CYGNET OH
— 419-657 not yet reported which blocks → BUCKLAND TELEPHONE COMPANY 0591 BUCKLAND OH
— 419-658 0XXX1XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 NEY OH
— 419-659 1XXX which blocks → HANSON COMMUNICATIONS OF OHIO, LLC-COLUMBUS GROVE 0604 COLUMBSGRV OH
— 419-660 3XXX5XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 NORWALK OH
— 419-661 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-662 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-663 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 NORWALK OH
— 419-665 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → OHIO BELL TEL CO 9321 LINDSEY OH
— 419-666 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-667 1XXX6XXX7XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 VENEDOCIA OH
— 419-668 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 NORWALK OH
— 419-669 5XXX6XXX7XXX8XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 WESTON OH
— 419-673 none assigned yet which blocks → WINDSTREAM OHIO, LLC 0665 KENTON OH
— 419-674 9XXX which blocks → WINDSTREAM OHIO, LLC 0665 KENTON OH
— 419-675 not yet reported which blocks → WINDSTREAM OHIO, LLC 0665 KENTON OH
— 419-677 0XXX2XXX5XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 NORWALK OH
— 419-678 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 COLDWATER OH
— 419-679 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KENTON OH
— 419-680 7XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FREMONT OH
— 419-681 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORWALK OH
— 419-682 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 STRYKER OH
— 419-683 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 CRESTLINE OH
— 419-684 0XXX1XXX2XXX3XXX4XXX8XXX · 4 holders which blocks → OHIO BELL TEL CO 9321 CASTALIA OH
— 419-685 7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ASHLAND OH
— 419-686 8XXX9XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 PORTAGE OH
— 419-687 1XXX4XXX5XXX7XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 PLYMOUTH OH
— 419-688 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 BUTLER OH
— 419-689 0XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 BUCYRUS OH
— 419-690 2XXX3XXX5XXX6XXX9XXX · 2 holders which blocks → AT&T ENTERPRISES, LLC 516C TOLEDO OH
— 419-691 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-692 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DELPHOS OH
— 419-693 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-694 0XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - OH 0615 MTBLANCHAD OH
— 419-695 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DELPHOS OH
— 419-696 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-697 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-698 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-699 not yet reported which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-700 not yet reported which blocks → OH
— 419-704 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-705 1XXX2XXX4XXX6XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 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.