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
2013-04-04	682-228	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	CLEBURNE	TX
2013-04-04	832-761	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	TOMBALL	TX
2013-04-04	832-847	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	RICHMNRNBG	TX
2013-04-04	832-945	0–9 XXXall 10 · 7 holders which blocks →	AT&T ENTERPRISES, LLC	516C	RICHMNRNBG	TX
2013-04-04	845-286	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	PATTERSON	NY
2013-04-04	862-308	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	CHATHAM	NJ
2013-04-04	903-502	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	CANTON	TX
2013-04-04	903-518	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 5 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	BELLSSAVOY	TX
2013-04-04	903-913	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	GRANDSALIN	TX
2013-04-04	914-353	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	CRTNONHDSN	NY
2013-04-04	914-362	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	MOUNTKISCO	NY
2013-04-04	914-875	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	SOUTHSALEM	NY
2013-04-03	431-321	not yet reported which blocks →	MTS Inc.	991B	Clear Lake	—
2013-04-03	516-231	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	NASSAUZN04	NY
2013-04-03	631-430	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	GREENPORT	NY
2013-04-03	631-518	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	BAY SHORE	NY
2013-04-03	631-519	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	E FIRE IS	NY
2013-04-03	631-571	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	ORIENT	NY
2013-04-03	631-735	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	PECONIC	NY
2013-04-03	754-205	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - FL	937C	POMPANOBCH	FL
2013-04-03	774-407	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	DOVER	MA
2013-04-03	778-453	not yet reported which blocks →	Shaw Telecom Inc.	497E	Thrums	—
2013-04-03	778-454	not yet reported which blocks →	Shaw Telecom Inc.	497E	South Slocan	—
2013-04-03	778-456	not yet reported which blocks →	Shaw Telecom Inc.	497E	Trail	—
2013-04-03	778-457	not yet reported which blocks →	Shaw Telecom Inc.	497E	Rossland	—
2013-04-03	778-459	not yet reported which blocks →	Shaw Telecom Inc.	497E	Fruitvale	—
2013-04-03	778-461	not yet reported which blocks →	Shaw Telecom Inc.	497E	North Nelson	—
2013-04-03	778-463	not yet reported which blocks →	Shaw Telecom Inc.	497E	Nelson	—
2013-04-03	778-529	not yet reported which blocks →	Shaw Telecom Inc.	497E	Balfour	—
2013-04-03	778-530	not yet reported which blocks →	Shaw Telecom Inc.	497E	Genelle	—
2013-04-03	940-219	1XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	THALIA	TX
2013-04-02	431-231	not yet reported which blocks →	MTS Inc.	991B	Oxford House	—
2013-04-02	431-232	not yet reported which blocks →	MTS Inc.	991B	Churchill	—
2013-04-02	469-340	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	GRANDPRARI	TX
2013-04-02	469-530	0–9 XXXall 10 · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DE SOTO	TX
2013-04-02	573-554	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	COLUMBIA	MO
2013-04-02	604-402	not yet reported which blocks →	Shaw Telecom Inc.	497E	Chilliwack	—
2013-04-02	604-410	not yet reported which blocks →	Shaw Telecom Inc.	497E	Mission	—
2013-04-02	604-705	not yet reported which blocks →	Shaw Telecom Inc.	497E	Sardis	—
2013-04-02	604-776	not yet reported which blocks →	Shaw Telecom Inc.	497E	Abbotsford	—
2013-04-02	720-525	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	DENVER	CO
2013-04-02	720-724	0–9 XXXall 10 · 3 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	3467	DENVER	CO
2013-04-02	813-510	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF FLORIDA, LLC - FL	902E	TAMPAWST	FL
2013-04-02	832-653	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CYPRESS	TX
2013-04-02	913-717	0–9 XXXall 10 · 3 holders which blocks →	EVERFAST FIBER NETWORKS LLC	3915	KANSASCITY	KS
2013-04-02	941-417	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF FLORIDA, LLC - FL	902E	PALMETTO	FL
2013-04-01	424-296	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	CMTN CMTN	CA
2013-04-01	646-686	0–9 XXXwhole prefix which blocks →	CABLEVISION LIGHTPATH, INC. - NY	7126	NWYRCYZN01	NY
2013-04-01	830-213	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EAGLE PASS	TX
2013-04-01	903-609	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PARIS	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.