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
2013-05-31	878-202	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	SHARON	PA
2013-05-30	207-806	0–9 XXXall 10 · 7 holders which blocks →	FREEDOM RING COMMUNICATIONS, LLC - ME	512F	SANFORD	ME
2013-05-30	210-719	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	SANANTONIO	TX
2013-05-30	954-906	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	CORAL SPG	FL
2013-05-29	202-910	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	WSHNGTNZN1	DC
2013-05-29	240-615	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	WSHNGTNZN4	MD
2013-05-29	313-214	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2013-05-29	313-326	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN5	MI
2013-05-29	470-592	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	BARNESVL	GA
2013-05-29	731-500	0XXX1XXX2XXX4XXX5XXX8XXX · 5 holders which blocks →	TENNESSEE TEL. CO.	0575	PARSONS	TN
2013-05-29	763-310	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	CAMBRIDGE	MN
2013-05-29	956-413	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	LAREDO	TX
2013-05-28	202-831	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	551G	WSHNGTNZN1	DC
2013-05-28	210-760	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	SANANTONIO	TX
2013-05-28	219-315	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	E CHICAGO	IN
2013-05-28	219-316	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	E CHICAGO	IN
2013-05-28	302-502	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	WILMINGTON	DE
2013-05-28	313-264	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN2	MI
2013-05-28	313-327	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN3	MI
2013-05-28	313-367	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN4	MI
2013-05-28	313-374	0–9 XXXwhole prefix which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN6	MI
2013-05-28	505-278	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NM	5470	FARMINGTON	NM
2013-05-28	506-991	not yet reported which blocks →	Fido Solutions Inc.	8820	Woodstock	—
2013-05-28	506-994	not yet reported which blocks →	Fido Solutions Inc.	8820	Sussex	—
2013-05-28	506-997	not yet reported which blocks →	Fido Solutions Inc.	8820	Caraquet	—
2013-05-28	682-262	0–9 XXXall 10 · 5 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	WEATHERFD	TX
2013-05-28	902-996	not yet reported which blocks →	Fido Solutions Inc.	8820	Kingston	—
2013-05-28	937-813	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	DAYTON	OH
2013-05-28	956-378	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	EDINBURG	TX
2013-05-28	980-231	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	DAVIDSON	NC
2013-05-28	980-247	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	DENVER	NC
2013-05-28	980-267	0–9 XXXall 10 · 3 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	CHARLOTTE	NC
2013-05-24	224-409	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	ARLIGTNHTS	IL
2013-05-24	224-410	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ALGONQUIN	IL
2013-05-24	312-647	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
2013-05-24	312-709	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
2013-05-24	314-297	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MO	993E	ST LOUIS	MO
2013-05-24	407-930	0–9 XXXall 10 · 3 holders which blocks →	BHN IP ENABLED SERVICES, LLC	045L	ORLANDO	FL
2013-05-24	571-758	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	DULLES	VA
2013-05-24	619-930	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	SNDG SNDG	CA
2013-05-24	720-504	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	DENVER	CO
2013-05-24	774-423	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	FRAMINGHAM	MA
2013-05-24	786-930	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2013-05-24	804-220	0–9 XXXall 10 · 5 holders which blocks →	IDT AMERICA, CORP. - VA	231C	REEDVILLE	VA
2013-05-24	814-315	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	ERIE	PA
2013-05-24	848-404	0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BELMAR	NJ
2013-05-24	859-878	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	COVINGTON	KY
2013-05-24	872-218	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN06	IL
2013-05-24	872-303	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN07	IL
2013-05-24	872-305	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN03	IL

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.