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
2013-05-24	904-930	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL JACKSONVILLE LICENSES, INC.	7472	JACKSONVL	FL
2013-05-24	917-809	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN03	NY
2013-05-24	920-300	0XXX1XXX3XXX7XXX8XXX · 4 holders which blocks →	EASTCOAST TELECOM, INC.	0914	CLEVELAND	WI
2013-05-23	281-223	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	CLEVELAND	TX
2013-05-23	307-429	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WY	081F	SHERIDAN	WY
2013-05-23	314-319	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	ST LOUIS	MO
2013-05-23	405-404	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	CHANDLER	OK
2013-05-23	613-412	not yet reported which blocks →	Fibernetics Corporation	464D	Bancroft	—
2013-05-23	614-710	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	HILLIARD	OH
2013-05-23	774-419	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	MIDDLEBORO	MA
2013-05-23	786-617	0–9 XXXall 10 · 2 holders which blocks →	NUSO, LLC	551G	NORTH DADE	FL
2013-05-23	864-559	0–9 XXXall 10 · 2 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	ANDERSON	SC
2013-05-22	216-331	0–9 XXXall 10 · 2 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CLEVELAND	OH
2013-05-22	234-571	0–9 XXXall 10 · 2 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	AKRON	OH
2013-05-22	513-873	0–9 XXXall 10 · 2 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CINCINNATI	OH
2013-05-22	567-413	0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	BOWLNGGREN	OH
2013-05-22	613-416	not yet reported which blocks →	Fibernetics Corporation	464D	Ottawa-Hull	—
2013-05-22	613-681	not yet reported which blocks →	Fibernetics Corporation	464D	Trenton	—
2013-05-22	613-713	not yet reported which blocks →	Fibernetics Corporation	464D	Kemptville	—
2013-05-22	613-814	not yet reported which blocks →	Fibernetics Corporation	464D	Brighton	—
2013-05-22	613-906	not yet reported which blocks →	Fibernetics Corporation	464D	Picton	—
2013-05-22	613-908	not yet reported which blocks →	Fibernetics Corporation	464D	Manotick	—
2013-05-22	613-964	not yet reported which blocks →	Fibernetics Corporation	464D	Carleton Place	—
2013-05-22	613-974	not yet reported which blocks →	Fibernetics Corporation	464D	Kanata-Stittsville	—
2013-05-22	702-904	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV	6458	LAS VEGAS	NV
2013-05-22	719-453	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	COLORDOSPG	CO
2013-05-22	740-771	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CHILLICOTH	OH
2013-05-22	918-414	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OK	119F	TAHLEQUAH	OK
2013-05-22	970-342	0–9 XXXall 10 · 4 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	3467	LOVELAND	CO
2013-05-21	317-909	0–9 XXXwhole prefix which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	INDIANAPLS	IN
2013-05-21	408-831	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SNJS WEST	CA
2013-05-21	413-402	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MA	990E	SHEFFIELD	MA
2013-05-21	646-681	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2013-05-21	702-903	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NV	587C	LAUGHLIN	NV
2013-05-21	705-317	not yet reported which blocks →	Comwave Networks	160G	Udora	—
2013-05-21	705-318	not yet reported which blocks →	Comwave Networks	160G	Pefferlaw	—
2013-05-21	713-352	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	APOLLO	TX
2013-05-21	902-949	not yet reported which blocks →	Bell Mobility Aliant	329A	Halifax	—
2013-05-20	210-812	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	SANANTONIO	TX
2013-05-20	210-816	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	SANANTONIO	TX
2013-05-20	210-910	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	SANANTONIO	TX
2013-05-20	252-214	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	GREENVILLE	NC
2013-05-20	314-202	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	ST LOUIS	MO
2013-05-20	404-528	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2013-05-20	404-940	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2013-05-20	469-607	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DALLAS	TX
2013-05-20	713-322	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	HOUSTON	TX
2013-05-20	810-662	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	PORT HURON	MI
2013-05-20	956-415	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	LAREDO	TX
2013-05-20	971-308	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OR	076F	CANNON BCH	OR

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.