Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 21

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
—	330-202	not yet reported which blocks →	BRIGHTSPEED OF NORTHWEST OHIO, INC.	0661	WOOSTER	OH
—	330-203	0XXX1XXX4XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	AKRON	OH
—	330-204	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	NEWPHLDLPH	OH
—	330-205	8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	MINERVA	OH
—	330-206	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	ALLIANCE	OH
—	330-207	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	YOUNGSTOWN	OH
—	330-208	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	AKRON	OH
—	330-210	not yet reported which blocks →	ARMSTRONG TELECOMMUNICATIONS, INC. - OH	024E	APPLECREEK	OH
—	330-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	330-213	not yet reported which blocks →	SPOK, INC.	6630	AKRON	OH
—	330-214	not yet reported which blocks →	SPOK, INC.	6630	CANTON	OH
—	330-215	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	AKRON	OH
—	330-218	not yet reported which blocks →	SPOK, INC.	6630	CANTON	OH
—	330-219	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	WARREN	OH
—	330-220	not yet reported which blocks →	FRONTIER NORTH, INC. - OH	0615	BRUNSWICK	OH
—	330-221	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	KENT	OH
—	330-222	3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	FRONTIER NORTH, INC. - OH	0615	WINONA	OH
—	330-223	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	FRONTIER NORTH, INC. - OH	0615	HANOVERTON	OH
—	330-225	not yet reported which blocks →	FRONTIER NORTH, INC. - OH	0615	BRUNSWICK	OH
—	330-227	1XXX2XXX4XXX6XXX7XXX8XXX · 3 holders which blocks →	OHIO BELL TEL CO	9321	ROGERS	OH
—	330-229	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	YOUNGSTOWN	OH
—	330-231	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	MILLERSBG	OH
—	330-232	7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CANTON	OH
—	330-233	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	YOUNGSTOWN	OH
—	330-235	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	RAVENNA	OH
—	330-237	not yet reported which blocks →	ONVOY, LLC - OH	464C	AKRON	OH
—	330-239	8XXX which blocks →	FRONTIER NORTH, INC. - OH	0615	SHARON CTR	OH
—	330-241	4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MEDINA	OH
—	330-242	7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MEDINA	OH
—	330-243	8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEWPHLDLPH	OH
—	330-244	6XXX7XXX which blocks →	OHIO BELL TEL CO	9321	NO CANTON	OH
—	330-245	4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	OHIO BELL TEL CO	9321	AKRON	OH
—	330-247	0XXX8XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	AKRON	OH
—	330-248	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	ALLIANCE	OH
—	330-249	1XXX3XXX4XXX5XXX7XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	ATWATER	OH
—	330-250	not yet reported which blocks →	SPOK, INC.	6630	AKRON	OH
—	330-252	7XXX which blocks →	OHIO BELL TEL CO	9321	AKRON	OH
—	330-253	not yet reported which blocks →	OHIO BELL TEL CO	9321	AKRON	OH
—	330-254	not yet reported which blocks →	SPOK, INC.	6630	WARREN	OH
—	330-255	8XXX9XXX which blocks →	OHIO BELL TEL CO	9321	AKRON	OH
—	330-256	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AKRON	OH
—	330-257	6XXX7XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ALLIANCE	OH
—	330-258	3XXX which blocks →	OHIO BELL TEL CO	9321	AKRON	OH
—	330-259	2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	YOUNGSTOWN	OH
—	330-260	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	NEWPHLDLPH	OH
—	330-261	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	YOUNGSTOWN	OH
—	330-262	not yet reported which blocks →	BRIGHTSPEED OF NORTHWEST OHIO, INC.	0661	WOOSTER	OH
—	330-263	not yet reported which blocks →	BRIGHTSPEED OF NORTHWEST OHIO, INC.	0661	WOOSTER	OH
—	330-264	not yet reported which blocks →	BRIGHTSPEED OF NORTHWEST OHIO, INC.	0661	WOOSTER	OH
—	330-265	0XXX2XXX · 2 holders which blocks →	T-MOBILE USA, INC.	6529	CANTON	OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.