Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
2011-08-30	202-417	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN1	DC
2011-08-30	412-709	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PTTSBGZON1	PA
2011-08-30	424-286	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	CMTN GRDN	CA
2011-08-30	502-806	0–9 XXXall 10 · 4 holders which blocks →	BRANDENBURG TELECOM, LLC - KY	5672	WEST POINT	KY
2011-08-30	505-835	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC - NM	206F	ALBUQURQUE	NM
2011-08-30	573-969	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	CENTRALIA	MO
2011-08-30	805-399	0–9 XXXall 10 · 4 holders which blocks →	WIDE VOICE, LLC - CA	252F	SAN MIGUEL	CA
2011-08-30	810-292	0–9 XXXall 10 · 7 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	PORT HURON	MI
2011-08-30	819-914	not yet reported which blocks →	ISP Telecom Inc.	4727	Ottawa-Hull	—
2011-08-30	819-915	not yet reported which blocks →	ISP Telecom Inc.	4727	Aylmer	—
2011-08-30	819-916	not yet reported which blocks →	ISP Telecom Inc.	4727	Gatineau	—
2011-08-29	475-282	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CT	199F	BRIDGEPORT	CT
2011-08-29	507-580	0XXX1XXX2XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	MIDCONTINENT COMMUNICATIONS - MN	429A	ELGIN	MN
2011-08-29	580-433	not yet reported which blocks →	CROSS-VALLIANT CELLULAR PARTNERSHIP	387E	VALLIANT	OK
2011-08-29	580-728	not yet reported which blocks →	CROSS-VALLIANT CELLULAR PARTNERSHIP	387E	IDABEL	OK
2011-08-29	705-813	not yet reported which blocks →	TELUS Integrated Communications	2782	Peterborough	—
2011-08-29	705-980	not yet reported which blocks →	Iristel Inc.	154E	North Bay	—
2011-08-26	321-333	0–9 XXXall 10 · 4 holders which blocks →	TERRA NOVA TELECOM, INC. - FL	382G	KISSIMMEE	FL
2011-08-26	404-337	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2011-08-26	408-707	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CA	649C	SNJS NORTH	CA
2011-08-26	470-216	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	ATLANTA NE	GA
2011-08-26	470-234	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	ATLANTA NE	GA
2011-08-26	704-352	0–9 XXXall 10 · 2 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	CHARLOTTE	NC
2011-08-26	850-999	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	TALLAHASSE	FL
2011-08-25	205-480	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	BIRMINGHAM	AL
2011-08-25	320-818	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	MIDCONTINENT COMMUNICATIONS - MN	429A	FOLEY	MN
2011-08-25	321-265	0–9 XXXall 10 · 5 holders which blocks →	METROPCS NETWORKS, LLC	899D	MELBOURNE	FL
2011-08-25	405-223	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
2011-08-25	410-805	0–9 XXXwhole prefix which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2011-08-25	443-580	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2011-08-25	501-216	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	LITTLEROCK	AR
2011-08-25	763-645	0–9 XXXall 10 · 5 holders which blocks →	MIDCONTINENT COMMUNICATIONS - MN	429A	CAMBRIDGE	MN
2011-08-25	775-276	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV	6458	RENO	NV
2011-08-25	832-270	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOUSTON	TX
2011-08-25	832-517	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOUSTON	TX
2011-08-25	909-332	0–9 XXXall 10 · 7 holders which blocks →	WIDE VOICE, LLC - CA	252F	S BERNDINO	CA
2011-08-24	404-263	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA	GA
2011-08-24	404-268	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA	GA
2011-08-24	408-502	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	LOS GATOS	CA
2011-08-24	413-255	0XXX2XXX3XXX5XXX6XXX7XXX · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	GRANBY	MA
2011-08-24	507-849	not yet reported which blocks →	SOUTHWEST MINNESOTA BROADBAND SERVICES - MN	569G	JACKSON	MN
2011-08-24	615-436	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	SPENCERMIL	TN
2011-08-24	817-617	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - TX	903C	ARLINGTON	TX
2011-08-24	845-322	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	HIGHLD FLS	NY
2011-08-24	870-300	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DERMOTT	AR
2011-08-24	951-337	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	MORENO	CA
2011-08-24	956-633	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks →	VTX COMMUNICATIONS, LLC	776A	SANTA ROSA	TX
2011-08-23	226-368	not yet reported which blocks →	TELUS Integrated Communications	2782	Brantford	—
2011-08-23	289-243	not yet reported which blocks →	Distributel	082E	Oakville	—
2011-08-23	289-263	not yet reported which blocks →	Distributel	082E	Hamilton	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.