Recent prefix assignments

349 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
2002-06-25	540-263	0XXX1XXX2XXX3XXX8XXX · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ROCKYMOUNT	VA
2002-06-25	540-416	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - VA	8825	STAUNTON	VA
2002-06-25	567-334	1XXX2XXX3XXX5XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	CONGRESS	OH
2002-06-25	567-335	1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	HAYESVILLE	OH
2002-06-25	662-694	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	STARKVILLE	MS
2002-06-25	662-695	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	GREENVILLE	MS
2002-06-25	662-797	not yet reported which blocks →	DIXIE NET COMMUNICATIONS, LLC	4724	SUMNER	MS
2002-06-25	717-476	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	NEW OXFORD	PA
2002-06-25	740-933	4XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	BOWERSTON	OH
2002-06-25	775-302	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	METROPCS, INC.	5562	FERNLEY	NV
2002-06-25	814-494	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	BEDFORD	PA
2002-06-25	818-288	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	BRBN BRBN	CA
2002-06-25	828-735	7XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	ROBBINSVL	NC
2002-06-25	828-736	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	CHEROKEE	NC
2002-06-25	903-890	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	SHERMAN	TX
2002-06-25	912-263	not yet reported which blocks →	AL-CALL, INC. - GA	3622	BRUNSWICK	GA
2002-06-25	912-535	not yet reported which blocks →	AL-CALL, INC. - GA	3622	VIDALIA	GA
2002-06-25	937-202	1XXX2XXX4XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	HOLLANSBG	OH
2002-06-25	937-551	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	PHILLIPSBG	OH
2002-06-25	937-566	1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PEERLESS NETWORK OF OHIO, LLC - OH	284F	WILMINGTON	OH
2002-06-25	937-573	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	TROY	OH
2002-06-25	937-574	1XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	CLARKSVL	OH
2002-06-25	937-583	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	LEWISBURG	OH
2002-06-24	251-366	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	MOBILE	AL
2002-06-24	361-244	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	C CHRISTI	TX
2002-06-24	515-212	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	BOONE	IA
2002-06-24	561-548	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	WPALMBEACH	FL
2002-06-24	631-848	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	BRENTWOOD	NY
2002-06-24	956-564	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HARLINGEN	TX
2002-06-24	956-566	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MCALLEN	TX
2002-06-21	270-255	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KY	4369	TOMPKINSVL	KY
2002-06-21	270-261	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KY	4369	GLASGOW	KY
2002-06-21	270-266	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KY	4369	SCOTTSVL	KY
2002-06-21	270-283	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KY	4369	CAMPBELSVL	KY
2002-06-21	270-284	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KY	4369	BURKESVL	KY
2002-06-21	562-639	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	PICORIVERA	CA
2002-06-21	567-212	1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	WEST SALEM	OH
2002-06-21	567-214	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH	7158	BELLEVUE	OH
2002-06-21	567-217	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	ASHLAND	OH
2002-06-21	567-223	1XXX2XXX3XXX5XXX6XXX7XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	LOUDONVL	OH
2002-06-21	567-351	1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	NEW LONDON	OH
2002-06-21	567-510	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	CELINA	OH
2002-06-21	567-523	3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	NORTH STAR	OH
2002-06-21	567-621	1XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	FTRECOVERY	OH
2002-06-21	586-524	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WARREN	MI
2002-06-21	812-267	5XXX6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	CORYDON	IN
2002-06-21	812-686	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	DALE	IN
2002-06-21	812-719	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	TELL CITY	IN
2002-06-21	812-766	6XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	PETERSBURG	IN
2002-06-21	812-781	3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NEWHARMONY	IN

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.