Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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 21

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
2014-11-06	971-339	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OR	750E	PORTLAND	OR
2014-11-06	984-269	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	RALEIGH	NC
2014-11-05	209-362	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	TRACY	CA
2014-11-05	470-363	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA	GA
2014-11-05	502-373	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - KY	987E	BARDSTOWN	KY
2014-11-05	559-368	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	TULARE	CA
2014-11-05	559-832	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FRESNO	CA
2014-11-05	586-434	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	WARREN	MI
2014-11-05	609-592	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	ALLENTOWN	NJ
2014-11-05	832-210	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	CHANNELVW	TX
2014-11-05	832-430	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	HSTNSUBURB	TX
2014-11-05	971-352	0–9 XXXall 10 · 5 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	7172	PORTLAND	OR
2014-11-05	984-789	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	RALEIGH	NC
2014-11-04	252-248	0–9 XXXall 10 · 7 holders which blocks →	FRONTIER COMMUNICATIONS OF AMERICA, INC. - NC	440G	BEAUFORT	NC
2014-11-04	276-533	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	WISE	VA
2014-11-04	321-339	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MELBOURNE	FL
2014-11-04	321-405	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - FL	937C	MELBOURNE	FL
2014-11-04	323-631	0–9 XXXwhole prefix which blocks →	METROPCS NETWORKS, LLC	899D	MONTEBELLO	CA
2014-11-04	407-972	0–9 XXXall 10 · 3 holders which blocks →	XO FLORIDA, INC.	6100	WKISSIMMEE	FL
2014-11-04	480-740	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PHOENIX	AZ
2014-11-04	657-247	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	SANTA ANA	CA
2014-11-04	786-717	0–9 XXXall 10 · 2 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MIAMI	FL
2014-11-04	904-601	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - FL	937C	FERNADNBCH	FL
2014-11-04	951-437	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	PERRIS	CA
2014-11-04	954-706	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	FTLAUDERDL	FL
2014-11-03	209-361	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	STOCKTON	CA
2014-11-03	210-920	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	SANANTONIO	TX
2014-11-03	318-616	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - LA	153F	BUNKIE	LA
2014-11-03	510-674	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CA	649C	HAYWARD	CA
2014-11-03	516-268	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC- NY	384C	NASSAUZN06	NY
2014-11-03	559-795	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	FRESNO	CA
2014-11-03	559-826	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	CLOVIS	CA
2014-11-03	650-338	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	HALFMOONBY	CA
2014-11-03	651-432	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	HASTINGS	MN
2014-11-03	832-940	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	HOUSTON	TX
2014-11-03	832-956	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TX	903C	HOUSTON	TX
2014-11-03	914-863	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	MT VERNON	NY
2014-11-03	915-305	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	EL PASO	TX
2014-11-03	971-716	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	MCMINNVL	OR
2014-11-03	971-772	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	WOODBURN	OR
2014-10-31	315-965	0–9 XXXall 10 · 6 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	WATERTOWN	NY
2014-10-31	315-968	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC- NY	384C	PARISH	NY
2014-10-31	315-973	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	CLAYTON	NY
2014-10-31	385-240	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	OGDEN	UT
2014-10-31	407-978	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KISSIMMEE	FL
2014-10-31	431-971	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Churchill	—
2014-10-31	431-972	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Snow Lake	—
2014-10-31	502-601	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL KENTUCKY LICENSES, INC.	365C	BARDSTOWN	KY
2014-10-31	504-510	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	NEWORLEANS	LA
2014-10-31	509-317	0–9 XXXall 10 · 7 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	YAKIMA	WA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.