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
2014-10-24	586-238	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	ROSEVILLE	MI
2014-10-24	702-859	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV	6458	LAS VEGAS	NV
2014-10-24	708-963	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ORLAND	IL
2014-10-24	712-383	0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks →	WESTERN IOWA TELEPHONE ASSOCIATION - IA	205H	KINGSLEY	IA
2014-10-24	719-398	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	BUENAVISTA	CO
2014-10-24	832-918	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX	7239	HOUSTON	TX
2014-10-24	832-985	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	APOLLO	TX
2014-10-24	971-985	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PORTLAND	OR
2014-10-23	216-930	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OH	464C	CLEVELAND	OH
2014-10-23	219-706	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF INDIANA, LLC - IN	279F	PORTAGE	IN
2014-10-23	234-718	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	7532	AKRON	OH
2014-10-23	313-395	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN6	MI
2014-10-23	313-403	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN6	MI
2014-10-23	567-806	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	TOLEDO	OH
2014-10-23	567-832	0XXX1XXX2XXX4XXX8XXX9XXX · 5 holders which blocks →	MCCLURE COMMUNICATIONS CORPORATION - OH	921G	GRAND RPDS	OH
2014-10-23	614-591	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - OH	464C	COLUMBUS	OH
2014-10-23	719-280	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	FLORENCE	CO
2014-10-23	832-855	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	BAMMEL	TX
2014-10-23	832-870	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOUSTON	TX
2014-10-23	937-949	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	DAYTON	OH
2014-10-23	971-715	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	AURORA	OR
2014-10-22	206-693	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	SEATTLE	WA
2014-10-22	206-739	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SEATTLE	WA
2014-10-22	319-519	0–9 XXXall 10 · 7 holders which blocks →	AIRUS, INC - IA	423H	IOWA CITY	IA
2014-10-22	385-424	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	KAYSVILLE	UT
2014-10-22	469-781	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GRANDPRARI	TX
2014-10-22	505-485	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ALBUQURQUE	NM
2014-10-22	682-252	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ARLINGTON	TX
2014-10-22	720-537	0–9 XXXall 10 · 2 holders which blocks →	FASTTRACK COMMUNICATIONS, INC. - CO	330B	DENVER	CO
2014-10-22	832-694	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	CHANNELVW	TX
2014-10-22	832-820	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DICKINSON	TX
2014-10-22	832-879	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	HOUSTON	TX
2014-10-22	872-818	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CHICGOZN07	IL
2014-10-22	956-602	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	LAREDO	TX
2014-10-21	202-930	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - DC	074F	WSHNGTNZN1	DC
2014-10-21	415-214	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNFC CNTRL	CA
2014-10-21	415-319	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNFC MT-EV	CA
2014-10-21	469-818	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2014-10-21	512-806	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	7516	AUSTIN	TX
2014-10-21	512-915	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AUSTIN	TX
2014-10-21	518-741	0–9 XXXall 10 · 5 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	GLENSFALLS	NY
2014-10-21	702-626	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	LAS VEGAS	NV
2014-10-21	716-322	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	BUFFALO	NY
2014-10-21	719-396	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PEYTON	CO
2014-10-21	720-584	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	DENVER	CO
2014-10-21	727-281	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	CLEARWATER	FL
2014-10-21	786-575	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	MIAMI	FL
2014-10-21	830-312	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEWBRANFLS	TX
2014-10-21	872-901	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	CHICGOZN07	IL
2014-10-21	984-242	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC	7555	RALEIGH	NC

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.