Recent prefix assignments

358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
2005-02-18	913-972	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS
2005-02-17	224-333	0–9 XXXall 10 · 7 holders which blocks →	COMCAST IP PHONE, LLC	318J	ALGONQUIN	IL
2005-02-17	270-710	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	GLASGWRURL	KY
2005-02-17	620-772	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	INMAN	KS
2005-02-17	620-877	0XXX1XXX2XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	HILLSBORO	KS
2005-02-17	785-816	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	WELLSVILLE	KS
2005-02-17	785-992	0XXX1XXX2XXX4XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	CENTROPOLS	KS
2005-02-17	785-996	4XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	WAKEFIELD	KS
2005-02-17	830-448	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CRYSTAL CY	TX
2005-02-16	318-973	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	GREENWOOD	LA
2005-02-16	406-630	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MT	9415	SIDNEY	MT
2005-02-16	406-708	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	WIDE VOICE, LLC - MT	743G	LEWISTOWN	MT
2005-02-16	605-550	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - SD	5180	MITCHELL	SD
2005-02-16	630-806	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	AURORA	IL
2005-02-16	706-809	5XXX6XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HELEN	GA
2005-02-16	706-994	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BLAIRSVL	GA
2005-02-16	785-522	0XXX1XXX4XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	CIRCLEVL	KS
2005-02-16	847-346	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ARLIGTNHTS	IL
2005-02-15	214-554	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2005-02-15	214-606	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2005-02-15	250-807	not yet reported which blocks →	TELUS	8086	Rutland	—
2005-02-15	321-806	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	COCOA	FL
2005-02-15	407-575	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	ORLANDO	FL
2005-02-15	418-714	not yet reported which blocks →	Bell Mobility	6574	Riviere-du-Loup	—
2005-02-15	450-603	not yet reported which blocks →	Videotron Ltd.	8306	Howick	—
2005-02-15	450-853	not yet reported which blocks →	Videotron Ltd.	8306	Hudson	—
2005-02-15	450-854	not yet reported which blocks →	Videotron Ltd.	8306	Valleyfield	—
2005-02-15	561-337	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2005-02-15	574-330	1XXX3XXX4XXX5XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	MILLERSBG	IN
2005-02-15	574-797	1XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	NEWCARLISL	IN
2005-02-15	617-830	0–9 XXXall 10 · 4 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	BOSTON	MA
2005-02-15	706-992	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	COLUMBUS	GA
2005-02-15	772-607	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PTST LUCIE	FL
2005-02-15	813-484	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TAMPA	FL
2005-02-15	819-962	not yet reported which blocks →	Bell Mobility	6574	Ottawa-Hull	—
2005-02-15	859-301	0–9 XXXwhole prefix which blocks →	CINCINNATI BELL	9348	COVINGTON	KY
2005-02-15	905-414	not yet reported which blocks →	Bell Mobility	6574	Welland	—
2005-02-15	919-456	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	CARY	NC
2005-02-15	937-662	0XXX7XXX · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH	7836	ARCANUM	OH
2005-02-15	954-376	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2005-02-15	972-689	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2005-02-15	972-835	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2005-02-15	972-922	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2005-02-15	973-640	0–9 XXXall 10 · 7 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	ORANGE	NJ
2005-02-14	205-524	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BIRMINGHAM	AL
2005-02-14	207-604	0–9 XXXall 10 · 4 holders which blocks →	BELL ATLANTIC MOBILE, INC	6386	KENNEBUNK	ME
2005-02-14	310-987	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	SAN PEDRO	CA
2005-02-14	334-652	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 TELECOM OF ALABAMA, LLC - AL	7327	MONTGOMERY	AL
2005-02-14	347-398	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	NWYRCYZN04	NY
2005-02-14	352-434	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	EUSTIS	FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.