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 614
OHIO BELL TEL CO 254
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 96
AERIAL COMMUNICATIONS, INC. 89
NEW CINGULAR WIRELESS PCS, LLC - IL 46
PAETEC ITEL, LLC 44
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
— 614-763 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FIRST COMMUNICATIONS, LLC 460K DUBLIN OH
— 614-764 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-766 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-767 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FIRST COMMUNICATIONS, LLC 460K HILLIARD OH
— 614-768 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WJEFFERSON OH
— 614-769 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-770 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 COLUMBUS OH
— 614-771 not yet reported which blocks → OHIO BELL TEL CO 9321 HILLIARD OH
— 614-775 8XXX which blocks → OHIO BELL TEL CO 9321 NEW ALBANY OH
— 614-777 not yet reported which blocks → OHIO BELL TEL CO 9321 HILLIARD OH
— 614-778 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-781 not yet reported which blocks → OHIO BELL TEL CO 9321 WORTHINGTN OH
— 614-782 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 GROVE CITY OH
— 614-783 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-784 3XXX5XXX which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-785 2XXX which blocks → OHIO BELL TEL CO 9321 WORTHINGTN OH
— 614-786 not yet reported which blocks → OHIO BELL TEL CO 9321 WORTHINGTN OH
— 614-789 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-790 0XXX which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-791 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-792 4XXX which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-793 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-794 not yet reported which blocks → OHIO BELL TEL CO 9321 WESTERVL OH
— 614-795 3XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
— 614-796 3XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WORTHINGTN OH
— 614-797 0XXX1XXX3XXX · 3 holders which blocks → OHIO BELL TEL CO 9321 WESTERVL OH
— 614-798 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-799 not yet reported which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
— 614-801 not yet reported which blocks → OHIO BELL TEL CO 9321 GROVE CITY OH
— 614-802 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WORTHINGTN OH
— 614-804 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-805 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-806 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-807 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WORTHINGTN OH
— 614-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
— 614-818 5XXX8XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 WESTERVL OH
— 614-819 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J HILLIARD OH
— 614-820 1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J GROVE CITY OH
— 614-821 not yet reported which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-822 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → AT&T - LOCAL 7421 DUBLIN OH
— 614-823 not yet reported which blocks → OHIO BELL TEL CO 9321 WESTERVL OH
— 614-825 3XXX5XXX which blocks → OHIO BELL TEL CO 9321 WORTHINGTN OH
— 614-827 3XXX4XXX5XXX · 3 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 COLUMBUS OH
— 614-828 0XXX1XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CANALWHSTR OH
— 614-829 0XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CANALWHSTR OH
— 614-830 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 GROVEPORT OH
— 614-832 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-833 not yet reported which blocks → OHIO BELL TEL CO 9321 CANALWHSTR OH
— 614-834 not yet reported which blocks → OHIO BELL TEL CO 9321 CANALWHSTR OH
— 614-835 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OHIO BELL TEL CO 9321 GROVEPORT 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.