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
2011-09-06	334-626	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	THOMASTON	AL
2011-09-06	334-638	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	THOMASVL	AL
2011-09-06	334-668	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	UNIONTOWN	AL
2011-09-06	334-680	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	MARION	AL
2011-09-06	334-882	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	CAMDEN	AL
2011-09-06	334-973	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	PINE HILL	AL
2011-09-06	334-995	not yet reported which blocks →	PINE BELT CELLULAR, INC.	4260	ORRVILLE	AL
2011-09-06	647-471	not yet reported which blocks →	TELUS Mobility	8303	Toronto	—
2011-09-06	647-472	not yet reported which blocks →	TELUS Mobility	8303	Toronto	—
2011-09-06	647-473	not yet reported which blocks →	TELUS Mobility	8303	Toronto	—
2011-09-06	786-212	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2011-09-02	208-391	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	BOISE	ID
2011-09-02	254-374	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	GHOLSON	TX
2011-09-02	312-292	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	CHICGOZN01	IL
2011-09-02	386-200	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	PIERSON	FL
2011-09-02	412-275	0–9 XXXall 10 · 7 holders which blocks →	COMCAST IP PHONE, LLC	318J	PTGSBNZN14	PA
2011-09-02	567-209	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	LEXINGTON	OH
2011-09-02	681-204	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	HNTNGTNZN1	WV
2011-09-02	806-728	not yet reported which blocks →	VEXUS	4913	SLATON	TX
2011-09-02	904-203	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MIDDLEBURG	FL
2011-09-01	336-490	0–9 XXXall 10 · 7 holders which blocks →	WINDSTREAM NORTH CAROLINA, INC.	0476	DENTON	NC
2011-09-01	336-815	0–9 XXXall 10 · 5 holders which blocks →	WINDSTREAM NORTH CAROLINA, INC.	0476	OLDTOWN	NC
2011-09-01	385-252	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SALT LAKE	UT
2011-09-01	423-481	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	ROAN MT	TN
2011-09-01	570-550	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	WILKSBARRE	PA
2011-09-01	570-664	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	STROUDSBG	PA
2011-09-01	571-385	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	WSNGTNZN17	VA
2011-09-01	571-418	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	WSNGTNZN19	VA
2011-09-01	623-396	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PHOENIX	AZ
2011-09-01	702-748	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	LAS VEGAS	NV
2011-09-01	757-932	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	NRFOLKZON2	VA
2011-09-01	772-210	0–9 XXXall 10 · 6 holders which blocks →	ITS FIBER, LLC	572G	STUART	FL
2011-09-01	786-334	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	MIAMI	FL
2011-09-01	850-600	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CHIPLEY	FL
2011-09-01	954-228	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	CORAL SPG	FL
2011-09-01	980-332	0–9 XXXall 10 · 6 holders which blocks →	WINDSTREAM NORTH CAROLINA, INC.	0476	GRTQRRCKWL	NC
2011-08-31	201-212	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	HACKENSACK	NJ
2011-08-31	313-287	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2011-08-31	313-713	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2011-08-31	313-844	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2011-08-31	347-980	0–9 XXXall 10 · 2 holders which blocks →	CSC VOICE, LLC	612K	NWYRCYZN05	NY
2011-08-31	440-305	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	BEREA	OH
2011-08-31	504-217	0–9 XXXall 10 · 5 holders which blocks →	VOICESTREAM GSM I, LLC	150C	KENNER	LA
2011-08-31	504-357	0–9 XXXwhole prefix which blocks →	VOICESTREAM GSM I, LLC	150C	NEWORLEANS	LA
2011-08-31	603-400	0–9 XXXall 10 · 3 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	HOLLIS	NH
2011-08-31	609-422	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	TRENTON	NJ
2011-08-31	786-651	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NORTH DADE	FL
2011-08-31	786-657	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	NORTH DADE	FL
2011-08-31	819-939	not yet reported which blocks →	Bell Canada	8050	Ottawa-Hull	—
2011-08-31	850-400	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	MILTON	FL

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.