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
2014-09-02	614-971	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	HILLIARD	OH
2014-09-02	646-858	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
2014-09-02	669-220	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	SNJS WEST	CA
2014-09-02	702-918	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	LAS VEGAS	NV
2014-09-02	757-378	0–9 XXXall 10 · 8 holders which blocks →	COMCAST IP PHONE, LLC	318J	WILLIAMSBG	VA
2014-09-02	832-898	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BAMMEL	TX
2014-09-02	832-961	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOUSTON	TX
2014-09-02	929-269	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN14	NY
2014-09-01	208-960	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	NAMPA	ID
2014-09-01	573-607	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	COLUMBIA	MO
2014-09-01	616-213	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEDAR SPG	MI
2014-09-01	719-317	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	COLORDOSPG	CO
2014-09-01	719-366	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	COLORDOSPG	CO
2014-09-01	719-415	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	PUEBLO	CO
2014-09-01	970-413	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	FT COLLINS	CO
2014-09-01	970-714	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	GREELEY	CO
2014-08-29	214-945	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MCKINNEY	TX
2014-08-29	226-633	not yet reported which blocks →	Comwave Networks	160G	Stratford	—
2014-08-29	234-720	0–9 XXXall 10 · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	7532	ATWATER	OH
2014-08-29	305-988	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	KEYS	FL
2014-08-29	385-309	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PROVO	UT
2014-08-29	385-539	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	PROVO	UT
2014-08-29	385-831	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	SALT LAKE	UT
2014-08-29	409-207	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BUNA	TX
2014-08-29	425-499	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	BELLEVUE	WA
2014-08-29	470-265	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2014-08-29	470-435	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2014-08-29	480-887	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PHOENIX	AZ
2014-08-29	541-801	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	ALBANY	OR
2014-08-29	581-373	not yet reported which blocks →	Videotron Ltd.	8306	Biencourt	—
2014-08-29	581-534	not yet reported which blocks →	Comwave Networks	160G	Levis	—
2014-08-29	581-535	not yet reported which blocks →	Comwave Networks	160G	Riviere-du-Loup	—
2014-08-29	705-908	not yet reported which blocks →	Comwave Networks	160G	Sault Ste. Marie	—
2014-08-29	715-888	0–9 XXXall 10 · 5 holders which blocks →	BALDWIN BROADBAND, LLC - WI	169E	NEWRICHMND	WI
2014-08-29	720-616	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CO	6118	DENVER	CO
2014-08-29	808-304	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	HONOLULU	HI
2014-08-29	904-480	0–9 XXXwhole prefix which blocks →	POWERTEL JACKSONVILLE LICENSES, INC.	7472	JACKSONVL	FL
2014-08-29	980-210	0–9 XXXall 10 · 4 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	MONROE	NC
2014-08-29	984-646	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	VIRGILINA	NC
2014-08-28	209-689	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	STOCKTON	CA
2014-08-28	336-590	0–9 XXXall 10 · 3 holders which blocks →	WINDSTREAM LEXCOM COMMUNICATIONS, LLC	0483	LEXINGTON	NC
2014-08-28	432-231	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ODESSA	TX
2014-08-28	469-294	0–9 XXXall 10 · 4 holders which blocks →	SOUTHWESTERN BELL	9533	FRISCO	TX
2014-08-28	520-278	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	TUCSON	AZ
2014-08-28	559-231	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	FRESNO	CA
2014-08-28	559-614	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	FRESNO	CA
2014-08-28	620-265	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	MT NETWORKS, LLC - KS	447H	BURLINGTON	KS
2014-08-28	626-684	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	ARCADIA	CA
2014-08-28	631-260	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	BRENTWOOD	NY
2014-08-28	682-307	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ARLINGTON	TX

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.