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
2016-11-21	786-560	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	MIAMI	FL
2016-11-21	786-637	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2016-11-21	805-853	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	OXNARD	CA
2016-11-21	909-530	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ARROWHEAD	CA
2016-11-21	909-602	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	REDLANDS	CA
2016-11-18	213-423	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	LSAN DA 10	CA
2016-11-18	323-853	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	MONTEBELLO	CA
2016-11-18	323-996	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	LSAN DA 06	CA
2016-11-18	346-330	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2016-11-18	365-873	not yet reported which blocks →	TELUS Integrated Communications	2782	Markham	—
2016-11-18	442-936	0–9 XXXall 10 · 5 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	WRWD PHLN	CA
2016-11-18	469-460	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GRANDPRARI	TX
2016-11-18	626-764	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	LA PUENTE	CA
2016-11-18	639-300	not yet reported which blocks →	SaskTel Mobility	9868	Prince Albert	—
2016-11-18	639-400	not yet reported which blocks →	SaskTel Mobility	9868	North Battleford	—
2016-11-18	657-348	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	ORANGE	CA
2016-11-18	657-349	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	WESTMINSTR	CA
2016-11-18	657-350	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	WESTMINSTR	CA
2016-11-18	661-479	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	BKFD MAIN	CA
2016-11-18	754-308	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2016-11-18	754-317	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2016-11-18	916-767	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	SCRM MAIN	CA
2016-11-17	254-335	0XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DUBLIN	TX
2016-11-17	915-331	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	7263	EL PASO	TX
2016-11-16	206-502	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF WASHINGTON, LLC - WA	159F	BAINBDG IS	WA
2016-11-16	207-291	0–9 XXXall 10 · 2 holders which blocks →	BELL ATLANTIC MOBILE, INC	6386	HARRISON	ME
2016-11-16	213-349	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LSAN DA 07	CA
2016-11-16	307-205	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	LINGLE	WY
2016-11-16	325-661	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	PUTNAM	TX
2016-11-16	325-946	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MORAN	TX
2016-11-16	432-455	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	FORSAN	TX
2016-11-16	484-861	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ALLENTOWN	PA
2016-11-16	516-412	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NASSAUZN08	NY
2016-11-16	518-906	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	ALTAMONT	NY
2016-11-16	551-216	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	BAYONNE	NJ
2016-11-16	682-414	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	ARLINGTON	TX
2016-11-16	717-550	0–9 XXXall 10 · 7 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA	7434	MECHANCSBG	PA
2016-11-16	717-607	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LEWISTOWN	PA
2016-11-16	779-915	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	WOODSTOCK	IL
2016-11-16	859-320	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - KY	8406	COVINGTON	KY
2016-11-16	959-282	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HARTFORD	CT
2016-11-15	267-726	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	PHPHSBZN40	PA
2016-11-15	313-752	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	DETROITZN1	MI
2016-11-15	562-471	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	LONG BEACH	CA
2016-11-15	586-551	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MT CLEMENS	MI
2016-11-15	614-897	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	COLUMBUS	OH
2016-11-15	786-920	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2016-11-15	810-263	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	BRIGHTON	MI
2016-11-15	951-418	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	PERRIS	CA
2016-11-14	267-822	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN2	PA

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.