Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 19

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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	614-485	7XXX8XXX · 2 holders which blocks →	OHIO BELL TEL CO	9321	COLUMBUS	OH
—	614-486	not yet reported which blocks →	OHIO BELL TEL CO	9321	COLUMBUS	OH
—	614-487	not yet reported which blocks →	OHIO BELL TEL CO	9321	COLUMBUS	OH
—	614-488	not yet reported which blocks →	OHIO BELL TEL CO	9321	COLUMBUS	OH
—	614-489	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 TELECOM OF OHIO, LLC - OH	7460	LOCKBOURNE	OH
—	614-491	not yet reported which blocks →	OHIO BELL TEL CO	9321	LOCKBOURNE	OH
—	614-492	not yet reported which blocks →	OHIO BELL TEL CO	9321	LOCKBOURNE	OH
—	614-493	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	COLUMBUS	OH
—	614-494	1XXX2XXX4XXX5XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	CANALWHSTR	OH
—	614-495	0XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	DUBLIN	OH
—	614-496	none assigned yet which blocks →	AERIAL COMMUNICATIONS, INC.	6701	COLUMBUS	OH
—	614-497	not yet reported which blocks →	OHIO BELL TEL CO	9321	LOCKBOURNE	OH
—	614-501	not yet reported which blocks →	OHIO BELL TEL CO	9321	REYNOLDSBG	OH
—	614-502	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF OHIO, LLC - OH	284F	COLUMBUS	OH
—	614-504	0–9 XXXall 10 · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	PLAIN CITY	OH
—	614-506	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	COLUMBUS	OH
—	614-507	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	COLUMBUS	OH
—	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

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.