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
2014-09-25	561-757	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2014-09-25	571-349	0–9 XXXall 10 · 8 holders which blocks →	VERIZON SOUTH, INC. - VA (CONTEL)	0233	ARCOLA	VA
2014-09-25	580-315	not yet reported which blocks →	WICHITA ONLINE, INC. - OK	258F	STERLING	OK
2014-09-25	646-876	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2014-09-25	646-887	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2014-09-25	717-775	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HARISBGZN1	PA
2014-09-25	802-696	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	JOHNSON	VT
2014-09-25	813-551	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	TAMPAWST	FL
2014-09-25	828-520	0–9 XXXall 10 · 5 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	SPRUCEPINE	NC
2014-09-25	915-301	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	EL PASO	TX
2014-09-25	939-599	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	SANTURCE	PR
2014-09-25	970-287	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	SILT	CO
2014-09-25	970-410	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	KREMMLING	CO
2014-09-25	970-693	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 9 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	MEEKER	CO
2014-09-25	970-715	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	MANCOS	CO
2014-09-24	206-476	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	SEATTLE	WA
2014-09-24	210-914	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	SANANTONIO	TX
2014-09-24	213-297	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LSAN DA 10	CA
2014-09-24	424-371	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	W ANGELES	CA
2014-09-24	469-620	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	DALLAS	TX
2014-09-24	510-634	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	HAYWARD	CA
2014-09-24	579-530	not yet reported which blocks →	Videotron Ltd.	8306	Franklin Centre	—
2014-09-24	579-722	not yet reported which blocks →	Videotron Ltd.	8306	Henryville	—
2014-09-24	585-634	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	RUSHVILLE	NY
2014-09-24	639-457	not yet reported which blocks →	SaskTel Mobility	9868	Tribune	—
2014-09-24	646-891	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
2014-09-24	650-753	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	SAN MATEO	CA
2014-09-24	682-270	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ARLINGTON	TX
2014-09-24	682-309	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GLENDALE	TX
2014-09-24	702-660	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - NV	075F	LAS VEGAS	NV
2014-09-24	778-750	not yet reported which blocks →	Comwave Networks	160G	Saanich	—
2014-09-24	807-747	not yet reported which blocks →	Bell Mobility	6574	Ignace	—
2014-09-24	951-434	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7139	SUN CITY	CA
2014-09-24	956-510	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	PHARR	TX
2014-09-24	956-513	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	EDINBURG	TX
2014-09-23	202-796	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - DC	074F	WSHNGTNZN1	DC
2014-09-23	209-326	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	ATWATER	CA
2014-09-23	209-328	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	MANTECA	CA
2014-09-23	210-765	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SANANTONIO	TX
2014-09-23	248-516	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	FARMINGTON	MI
2014-09-23	253-258	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	AUBURN	WA
2014-09-23	262-875	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	WAUKESHA	WI
2014-09-23	314-688	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	ST LOUIS	MO
2014-09-23	315-967	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	FAYETTEVL	NY
2014-09-23	407-906	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	ORLANDO	FL
2014-09-23	425-595	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	EVERETT	WA
2014-09-23	470-695	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	CUMMING	GA
2014-09-23	480-485	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - AZ	587F	PHOENIX	AZ
2014-09-23	520-283	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	TUCSON	AZ
2014-09-23	541-800	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF OREGON, LLC - OR	157F	STANFIELD	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.