Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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 28

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 23

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

Quick find in this area code:

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	601-328	not yet reported which blocks →	SPOK, INC.	6630	JACKSON	MS
—	601-329	0XXX2XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	METROPCS, INC.	5562	HATTIESBG	MS
—	601-331	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	JACKSON	MS
—	601-332	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HATTIESBG	MS
—	601-334	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NATCHEZ	MS
—	601-335	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	LAUREL	MS
—	601-338	not yet reported which blocks →	TELEPAK NETWORKS, INC. - MS	5278	MCLAIN	MS
—	601-339	0XXX1XXX4XXX6XXX9XXX · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MS	4886	CLINTON	MS
—	601-342	0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks →	METROPCS, INC.	5562	LAUREL	MS
—	601-344	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	LAUREL	MS
—	601-346	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-347	0XXX which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	PICAYUNE	MS
—	601-351	5XXX6XXX9XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-352	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-353	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-354	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-355	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-356	none assigned yet which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	PORTGIBSON	MS
—	601-357	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	CELLULAR SOUTH, INC.	6581	NEWTONHKRY	MS
—	601-358	not yet reported which blocks →	PAETEC ITEL, LLC	829J	PICAYUNE	MS
—	601-359	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-360	8XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-361	not yet reported which blocks →	PAETEC ITEL, LLC	829J	NATCHEZ	MS
—	601-362	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-363	0XXX3XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	LUCEDALE	MS
—	601-364	4XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-365	0XXX2XXX7XXX · 2 holders which blocks →	METROPCS, INC.	5562	POPLARVL	MS
—	601-366	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-367	0XXX1XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	WIGGINS	MS
—	601-368	6XXX8XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-369	not yet reported which blocks →	PAETEC ITEL, LLC	829J	LAUREL	MS
—	601-370	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-371	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-372	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-373	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-374	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	RALEIGH	MS
—	601-375	8XXX which blocks →	BAY SPRINGS TEL. CO., INC.	0446	SOSO	MS
—	601-376	5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-378	none assigned yet which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	LUCEDALE	MS
—	601-379	none assigned yet which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	PICAYUNE	MS
—	601-380	not yet reported which blocks →	TELETOUCH COMMUNICATIONS, INC.	6591	BROOKHAVEN	MS
—	601-381	8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	WAYNESBORO	MS
—	601-384	none assigned yet which blocks →	FRANKLIN TELEPHONE COMPANY, LLC	0454	MEADVILLE	MS
—	601-386	none assigned yet which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	POPLARVL	MS
—	601-387	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	JACKSON	MS
—	601-389	4XXX7XXX8XXX · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	PHILA	MS
—	601-391	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	CANTON	MS
—	601-394	none assigned yet which blocks →	SOUTHEAST MISSISSIPPI TEL. CO.	3301	LEAKESVL	MS
—	601-395	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MCCOMB	MS
—	601-396	not yet reported which blocks →	TELEPAK NETWORKS, INC. - MS	5278	MIZE	MS

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.