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
2014-10-14	929-297	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN05	NY
2014-10-13	234-334	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	AKRON	OH
2014-10-13	256-973	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	DECATUR	AL
2014-10-13	331-307	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	LOMBARD	IL
2014-10-13	331-980	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	AURORA	IL
2014-10-13	440-650	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	ASHTABULA	OH
2014-10-13	507-606	0–9 XXXall 10 · 6 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	AUSTIN	MN
2014-10-13	530-815	0XXX1XXX4XXX5XXX8XXX9XXX · 2 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	CHICO	CA
2014-10-13	575-228	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NM	123F	ALTO	NM
2014-10-13	619-385	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG SNDG	CA
2014-10-13	626-741	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	ALHAMBRA	CA
2014-10-13	650-785	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	PALO ALTO	CA
2014-10-13	682-260	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	GRANBURY	TX
2014-10-13	727-276	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CLEARWATER	FL
2014-10-13	727-307	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CLEARWATER	FL
2014-10-13	754-213	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2014-10-13	754-215	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2014-10-13	754-702	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CORAL SPG	FL
2014-10-13	832-759	0–9 XXXall 10 · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	RICHMNRNBG	TX
2014-10-13	872-731	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN07	IL
2014-10-13	904-575	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	JACKSONVL	FL
2014-10-13	951-428	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	TEMECULA	CA
2014-10-13	970-825	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	FT COLLINS	CO
2014-10-13	971-713	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	BEAVERTON	OR
2014-10-13	980-389	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	LINCOLNTON	NC
2014-10-13	980-585	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	CHARLOTTE	NC
2014-10-12	681-399	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	IDT AMERICA, CORP. - WV	317C	PARSONS	WV
2014-10-10	234-405	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MANTUA	OH
2014-10-10	236-998	not yet reported which blocks →	TELUS Mobility	8301	Vancouver	—
2014-10-10	540-486	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	WINCHESTER	VA
2014-10-10	587-357	not yet reported which blocks →	Bell Mobility	6574	Edmonton	—
2014-10-10	587-834	not yet reported which blocks →	Bell Mobility	6574	Calgary	—
2014-10-10	608-571	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF WISCONSIN, LLC - WI	227F	MADISON	WI
2014-10-10	614-956	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DUBLIN	OH
2014-10-10	647-546	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2014-10-10	762-223	0–9 XXXall 10 · 5 holders which blocks →	ETC COMMUNICATIONS, L.L.C. - GA	205D	HELEN	GA
2014-10-10	778-953	not yet reported which blocks →	Bell Mobility	6574	Vancouver	—
2014-10-10	808-425	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI	6516	HONOLULU	HI
2014-10-10	857-707	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	BROOKLINE	MA
2014-10-10	937-979	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DAYTON	OH
2014-10-10	939-226	0–9 XXXall 10 · 2 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	SANTURCE	PR
2014-10-09	202-826	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN1	DC
2014-10-09	206-488	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	BAINBDG IS	WA
2014-10-09	236-997	not yet reported which blocks →	TELUS Mobility	8301	Vancouver	—
2014-10-09	248-704	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	NORTHVILLE	MI
2014-10-09	317-699	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	SHELBYVL	IN
2014-10-09	385-549	0–9 XXXall 10 · 4 holders which blocks →	FIRSTDIGITAL TELECOM, LLC - UT	5727	SALT LAKE	UT
2014-10-09	402-378	0–9 XXXall 10 · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	OMAHA	NE
2014-10-09	431-200	not yet reported which blocks →	MTS Inc.	991B	Winnipeg	—
2014-10-09	431-201	not yet reported which blocks →	MTS Inc.	991B	Snow Lake	—

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.