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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 614-508 2XXX3XXX4XXX7XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WESTERVL OH
— 614-509 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GAHANNA OH
— 614-510 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 DUBLIN OH
— 614-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
— 614-513 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 CANALWHSTR OH
— 614-517 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
— 614-518 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 COLUMBUS OH
— 614-519 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-520 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 COLUMBUS OH
— 614-521 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 COLUMBUS OH
— 614-522 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J REYNOLDSBG OH
— 614-523 not yet reported which blocks → OHIO BELL TEL CO 9321 WESTERVL OH
— 614-526 4XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DUBLIN OH
— 614-527 not yet reported which blocks → OHIO BELL TEL CO 9321 HILLIARD OH
— 614-528 0XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GAHANNA OH
— 614-529 not yet reported which blocks → OHIO BELL TEL CO 9321 HILLIARD OH
— 614-530 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
— 614-531 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
— 614-534 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J HILLIARD OH
— 614-536 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J GAHANNA OH
— 614-537 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-538 not yet reported which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-539 not yet reported which blocks → OHIO BELL TEL CO 9321 GROVE CITY OH
— 614-540 3XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WORTHINGTN OH
— 614-542 7XXX9XXX which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-543 4XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WORTHINGTN OH
— 614-544 not yet reported which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-545 8XXX which blocks → PAETEC ITEL, LLC 829J COLUMBUS OH
— 614-546 5XXX6XXX7XXX8XXX9XXX which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-547 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WORTHINGTN OH
— 614-548 3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CANALWHSTR OH
— 614-551 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-552 4XXX8XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 REYNOLDSBG OH
— 614-554 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST OH
— 614-557 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-558 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AT&T - LOCAL 7421 COLUMBUS OH
— 614-559 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
— 614-560 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-561 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-562 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-563 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-564 7XXX9XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-565 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-566 not yet reported which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
— 614-567 0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GROVEPORT OH
— 614-568 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WESTERVL OH
— 614-570 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
— 614-571 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
— 614-572 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J COLUMBUS 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.