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
2012-09-04	214-983	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	GRANDPRARI	TX
2012-09-04	320-854	not yet reported which blocks →	HUTCHINSON TELECOMMUNICATIONS, INC.	4602	GLENCOE	MN
2012-09-04	413-372	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	SPRINGFLD	MA
2012-09-04	415-429	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2012-09-04	571-623	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	WSNGTNZN17	VA
2012-09-04	608-418	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	ALMA	WI
2012-09-04	707-346	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	NAPA	CA
2012-09-04	716-293	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC- NY	384C	CLARENCE	NY
2012-09-04	720-387	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 TELECOM OF COLORADO, LLC - CO	4574	DENVER	CO
2012-08-31	201-544	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	JERSEYCITY	NJ
2012-08-31	312-667	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	CHICGOZN01	IL
2012-08-31	541-500	0–9 XXXall 10 · 4 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	MEDFORD	OR
2012-08-31	559-374	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	FRESNO	CA
2012-08-31	717-430	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	YORK	PA
2012-08-31	719-247	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	COLORDOSPG	CO
2012-08-31	732-538	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	ENGLISHTN	NJ
2012-08-31	779-209	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	SANDWICH	IL
2012-08-30	518-650	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	ALBANY	NY
2012-08-30	561-325	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2012-08-30	561-405	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL	8664	BOCA RATON	FL
2012-08-30	615-803	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL NASHVILLE LICENSES, INC.	7476	NASHVILLE	TN
2012-08-30	661-432	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	BKFD MAIN	CA
2012-08-30	754-203	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF FLORIDA, LLC - FL	902E	CORAL SPG	FL
2012-08-30	845-686	0XXX1XXX2XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	POUGHKEPSI	NY
2012-08-30	863-336	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF FLORIDA, LLC - FL	902E	FROSTPROOF	FL
2012-08-30	865-317	0–9 XXXall 10 · 6 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	LENOIRCITY	TN
2012-08-29	229-583	0–9 XXXall 10 · 4 holders which blocks →	PUBLIC SERVICE WIRELESS SERVICES, INC.	901G	ALBANY	GA
2012-08-29	254-316	0–9 XXXall 10 · 4 holders which blocks →	SOUTHWESTERN BELL	9533	TEMPLE	TX
2012-08-29	313-353	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2012-08-29	313-428	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2012-08-29	351-202	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	PEPPERELL	MA
2012-08-29	351-205	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX which blocks →	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	GEORGETOWN	MA
2012-08-29	478-583	0–9 XXXall 10 · 3 holders which blocks →	PUBLIC SERVICE WIRELESS SERVICES, INC.	901G	MACON	GA
2012-08-29	512-831	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - TX	903C	AUSTIN	TX
2012-08-29	571-414	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSNGTNZN08	VA
2012-08-29	703-844	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF VIRGINIA, LLC - VA	275G	DULLES	VA
2012-08-29	705-535	not yet reported which blocks →	Iristel Inc.	154E	Huntsville	—
2012-08-29	762-583	0–9 XXXall 10 · 6 holders which blocks →	PUBLIC SERVICE WIRELESS SERVICES, INC.	901G	COLUMBUS	GA
2012-08-29	762-847	0–9 XXXall 10 · 6 holders which blocks →	TRUVISTA COMMUNICATIONS OF GEORGIA, LLC - GA	847G	ROYSTON	GA
2012-08-29	802-692	0–9 XXXall 10 · 5 holders which blocks →	VTEL WIRELESS, INC.	9814	SPRINGFLD	VT
2012-08-29	812-713	0–9 XXXall 10 · 2 holders which blocks →	FRONTIER NORTH, INC. - IN	0779	CRANE	IN
2012-08-29	848-214	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	DEAL	NJ
2012-08-29	941-222	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF FLORIDA, LLC - FL	902E	BRADENTON	FL
2012-08-28	201-685	0–9 XXXall 10 · 7 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	JERSEYCITY	NJ
2012-08-28	289-415	not yet reported which blocks →	TELUS Integrated Communications	2782	Beeton	—
2012-08-28	289-860	not yet reported which blocks →	Comwave Networks	160G	Hamilton	—
2012-08-28	407-800	0–9 XXXall 10 · 2 holders which blocks →	TERRA NOVA TELECOM INC.	145J	ORLANDO	FL
2012-08-28	438-844	not yet reported which blocks →	TELUS Quebec	2243	Montreal	—
2012-08-28	440-408	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	HILLCREST	OH
2012-08-28	440-430	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	TRINITY	OH

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.