Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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 19

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
2016-11-03	431-764	not yet reported which blocks →	TELUS Mobility	8303	Ashern	—
2016-11-03	431-765	not yet reported which blocks →	TELUS Mobility	8303	Bissett	—
2016-11-03	431-766	not yet reported which blocks →	TELUS Mobility	8303	Easterville	—
2016-11-03	431-767	not yet reported which blocks →	TELUS Mobility	8303	Fisher River	—
2016-11-03	431-768	not yet reported which blocks →	TELUS Mobility	8303	Grand Rapids	—
2016-11-03	431-769	not yet reported which blocks →	TELUS Mobility	8303	Grand Beach	—
2016-11-03	431-770	not yet reported which blocks →	TELUS Mobility	8303	Lac Du Bonnet	—
2016-11-03	431-771	not yet reported which blocks →	TELUS Mobility	8303	Carman	—
2016-11-03	431-772	not yet reported which blocks →	TELUS Mobility	8303	Eriksdale	—
2016-11-03	431-773	not yet reported which blocks →	TELUS Mobility	8303	Manitou	—
2016-11-03	431-774	not yet reported which blocks →	TELUS Mobility	8303	Morden	—
2016-11-03	431-775	not yet reported which blocks →	TELUS Mobility	8303	Winkler	—
2016-11-03	431-776	not yet reported which blocks →	TELUS Mobility	8303	Holland	—
2016-11-03	469-984	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	GRANDPRARI	TX
2016-11-03	609-686	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	ALLENTOWN	NJ
2016-11-03	803-915	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	COLUMBIA	SC
2016-11-03	939-814	1XXX3XXX4XXX8XXX · 4 holders which blocks →	LIBERTY COMMUNICATIONS OF PUERTO RICO LLC	955G	UTUADO	PR
2016-11-02	210-955	0–9 XXXall 10 · 6 holders which blocks →	COMMIO, LLC	939H	SANANTONIO	TX
2016-11-02	239-318	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	FORT MYERS	FL
2016-11-02	346-414	0–9 XXXall 10 · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CLEVELAND	TX
2016-11-02	346-867	0–9 XXXall 10 · 6 holders which blocks →	COMMIO, LLC	939H	HOUSTON	TX
2016-11-02	424-403	0–9 XXXall 10 · 7 holders which blocks →	T-MOBILE USA, INC.	6529	CMTN CMTN	CA
2016-11-02	469-697	0–9 XXXall 10 · 7 holders which blocks →	COMMIO, LLC	939H	DALLAS	TX
2016-11-02	612-513	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2016-11-02	657-351	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	SILVERADO	CA
2016-11-02	737-414	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	BUDA	TX
2016-11-02	737-867	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	AUSTIN	TX
2016-11-02	754-302	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2016-11-02	757-614	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	NRFOLKZON1	VA
2016-11-02	778-912	not yet reported which blocks →	TELUS Mobility	8301	Alert Bay	—
2016-11-02	778-913	not yet reported which blocks →	TELUS Mobility	8301	Bella Bella	—
2016-11-02	778-914	not yet reported which blocks →	TELUS Mobility	8301	Masset	—
2016-11-02	778-915	not yet reported which blocks →	TELUS Mobility	8301	Valemount	—
2016-11-02	778-916	not yet reported which blocks →	TELUS Mobility	8301	Vanderhoof	—
2016-11-02	786-909	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MIAMI	FL
2016-11-02	810-219	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FLINT	MI
2016-11-02	825-996	not yet reported which blocks →	TELUS Mobility	8301	Hanna	—
2016-11-02	825-997	not yet reported which blocks →	TELUS Mobility	8301	Hardisty	—
2016-11-02	825-998	not yet reported which blocks →	TELUS Mobility	8301	Oyen	—
2016-11-02	909-442	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	RIALTO	CA
2016-11-02	954-955	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	FTLAUDERDL	FL
2016-11-01	385-515	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	KAYSVILLE	UT
2016-11-01	424-541	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	INGLEWOOD	CA
2016-11-01	470-358	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	WINDER	GA
2016-11-01	843-827	0XXX which blocks →	SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC	527H	AYNOR	SC
2016-11-01	870-907	0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MAMMOTHSPG	AR
2016-11-01	870-971	0XXX1XXX2XXX3XXX7XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	SALEM	AR
2016-11-01	979-317	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KURTEN	TX
2016-10-31	224-414	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	BENSENVL	IL
2016-10-31	314-519	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO	7432	ST LOUIS	MO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.