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
—	601-556	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	XXXXXXXXXX	MS
—	601-558	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	HATTIESBG	MS
—	601-559	5XXX6XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	JACKSON	MS
—	601-560	0XXX1XXX8XXX which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	CANTON	MS
—	601-561	7XXX which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	VICKSBURG	MS
—	601-567	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MCCOMB	MS
—	601-568	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	PHILA	MS
—	601-570	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	HATTIESBG	MS
—	601-572	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-573	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	JACKSON	MS
—	601-576	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-577	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	LAUREL	MS
—	601-578	not yet reported which blocks →	TEC OF JACKSON, INC. - MS	3704	LAUREL	MS
—	601-579	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	HATTIESBG	MS
—	601-580	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	LAUREL	MS
—	601-581	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MERIDIAN	MS
—	601-582	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	HATTIESBG	MS
—	601-583	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	HATTIESBG	MS
—	601-584	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	HATTIESBG	MS
—	601-587	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MONTICELLO	MS
—	601-588	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	BEAUMONT	MS
—	601-590	7XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	PICAYUNE	MS
—	601-591	3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BRANDON	MS
—	601-592	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JACKSON	MS
—	601-593	not yet reported which blocks →				MS
—	601-594	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	JACKSON	MS
—	601-595	4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MERIDIAN	MS
—	601-597	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	NATCHEZ	MS
—	601-598	not yet reported which blocks →	FRANKLIN TELEPHONE COMPANY, LLC	0454	JANICE	MS
—	601-599	not yet reported which blocks →	COMCAST IP PHONE, LLC	318J	HATTIESBG	MS
—	601-602	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	HATTIESBG	MS
—	601-603	2XXX3XXX4XXX5XXX7XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	MIZE	MS
—	601-604	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MERIDIAN	MS
—	601-605	7XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MADISON	MS
—	601-606	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	HATTIESBG	MS
—	601-607	0XXX1XXX2XXX5XXX9XXX · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MADISON	MS
—	601-608	7XXX8XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	JACKSON	MS
—	601-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MS
—	601-613	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	JACKSON	MS
—	601-616	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MERIDIAN	MS
—	601-618	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	VICKSBURG	MS
—	601-619	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	VICKSBURG	MS
—	601-625	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	FOREST	MS
—	601-626	2XXX3XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MERIDIAN	MS
—	601-629	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	VICKSBURG	MS
—	601-630	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	VICKSBURG	MS
—	601-631	none assigned yet which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	VICKSBURG	MS
—	601-632	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	TOOMSUBA	MS
—	601-634	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	VICKSBURG	MS
—	601-635	not yet reported which blocks →	DECATUR TEL. CO., INC.	0451	DECATUR	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.