Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2016-07-25	614-676	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	GAHANNA	OH
2016-07-25	614-689	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	DUBLIN	OH
2016-07-25	628-253	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SAN RAFAEL	CA
2016-07-25	712-205	0XXX1XXX4XXX7XXX8XXX9XXX · 6 holders which blocks →	WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS	1170	AUDUBON	IA
2016-07-25	717-807	0XXX2XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	WINDSTREAM D&E, INC.	0165	LITITZ	PA
2016-07-25	806-609	9XXX which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	MEMPHIS	TX
2016-07-25	806-612	0XXX1XXX2XXX6XXX7XXX9XXX · 5 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	DALHART	TX
2016-07-25	806-614	0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	BROWNFIELD	TX
2016-07-25	806-617	7XXX9XXX · 2 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	ANTON	TX
2016-07-25	830-219	0–9 XXXall 10 · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CARRIZOSPG	TX
2016-07-25	909-506	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	CLAREMONT	CA
2016-07-25	940-317	0–9 XXXall 10 · 3 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	SEYMOUR	TX
2016-07-25	984-349	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	RALEIGH	NC
2016-07-22	210-969	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	SANANTONIO	TX
2016-07-22	314-354	0–9 XXXall 10 · 6 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	ST LOUIS	MO
2016-07-22	323-530	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	MONTEBELLO	CA
2016-07-22	385-267	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	SALT LAKE	UT
2016-07-22	385-482	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - UT	117F	PROVO	UT
2016-07-22	424-402	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	W ANGELES	CA
2016-07-22	561-815	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	WPALMBEACH	FL
2016-07-22	628-239	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SNFC JUNPR	CA
2016-07-22	628-246	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SNFC CNTRL	CA
2016-07-22	717-906	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	CARLISLE	PA
2016-07-22	727-440	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	STPETERSBG	FL
2016-07-22	727-605	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	HUDSON	FL
2016-07-22	747-216	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	NORTHRIDGE	CA
2016-07-22	757-794	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	TOANO	VA
2016-07-22	774-770	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	NEWBEDFORD	MA
2016-07-22	786-823	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	NORTH DADE	FL
2016-07-22	786-860	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	MIAMI	FL
2016-07-22	812-928	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN	7440	CRANE	IN
2016-07-22	813-820	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	TAMPAEST	FL
2016-07-22	828-532	0–9 XXXall 10 · 6 holders which blocks →	CAROLINA WEST WIRELESS, INC.	5932	LAKE LURE	NC
2016-07-22	857-763	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	BOSTON	MA
2016-07-22	872-763	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	CHICGOZN06	IL
2016-07-22	901-671	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	MEMPHIS	TN
2016-07-22	909-750	0–9 XXXall 10 · 4 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	ONTARIO	CA
2016-07-22	913-942	0–9 XXXall 10 · 6 holders which blocks →	SOUTHWESTERN BELL	9533	KANSASCITY	KS
2016-07-22	916-562	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM MAIN	CA
2016-07-22	929-369	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN10	NY
2016-07-22	929-396	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN08	NY
2016-07-22	971-865	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	PORTLAND	OR
2016-07-22	984-228	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	CARY	NC
2016-07-21	210-944	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2016-07-21	210-962	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2016-07-21	210-963	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - TX	903C	SANANTONIO	TX
2016-07-21	224-763	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NORTHBROOK	IL
2016-07-21	224-769	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	ELGIN	IL
2016-07-21	317-552	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IN	105F	INDIANAPLS	IN
2016-07-21	402-909	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE	5807	FREMONT	NE

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.