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
2020-06-24	929-546	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN11	NY
2020-06-24	929-547	0–9 XXXall 10 · 5 holders which blocks →	CABLEVISION LIGHTPATH, INC. - NY	7126	NWYRCYZN11	NY
2020-06-24	929-548	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN11	NY
2020-06-24	929-549	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN07	NY
2020-06-24	929-552	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN06	NY
2020-06-24	929-553	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN09	NY
2020-06-24	947-223	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLCV - MI	543C	COMMERCE	MI
2020-06-24	986-400	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	CASCADE	ID
2020-06-24	986-444	0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 6 holders which blocks →	FRACTEL, LLC	965H	SWEET	ID
2020-06-24	986-800	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	IDAHOFALLS	ID
2020-06-23	361-677	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	C CHRISTI	TX
2020-06-23	409-348	0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	FANNETT	TX
2020-06-23	431-404	not yet reported which blocks →	LES.NET (1996) Inc.	141F	Emerson	—
2020-06-23	581-662	not yet reported which blocks →	Fibernetics Corporation	464D	Loretteville	—
2020-06-23	581-663	not yet reported which blocks →	Fibernetics Corporation	464D	Notre-Dame-des-Laurentides	—
2020-06-23	581-666	not yet reported which blocks →	Fibernetics Corporation	464D	Ste-Catherine	—
2020-06-23	682-345	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	GRAPEVINE	TX
2020-06-23	682-356	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	CLEBURNE	TX
2020-06-23	682-600	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	ARLINGTON	TX
2020-06-23	774-431	0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	AUBURN	MA
2020-06-23	804-964	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	RICHMOND	VA
2020-06-23	830-348	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	COTULLA	TX
2020-06-23	940-356	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	QUANAH	TX
2020-06-23	947-941	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLCV - MI	543C	ROYAL OAK	MI
2020-06-22	207-804	0–9 XXXall 10 · 5 holders which blocks →	BELL ATLANTIC MOBILE, INC	6386	WINDHAM	ME
2020-06-22	224-451	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC	224C	BARRINGTON	IL
2020-06-22	254-544	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	SO BOSQUE	TX
2020-06-22	346-677	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	BAYTOWN	TX
2020-06-22	346-786	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	SPRING	TX
2020-06-22	414-441	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - WI	225C	MILWAUKZN3	WI
2020-06-22	430-272	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ATHENS	TX
2020-06-22	431-402	not yet reported which blocks →	LES.NET (1996) Inc.	141F	Altona	—
2020-06-22	431-403	not yet reported which blocks →	LES.NET (1996) Inc.	141F	Beausejour	—
2020-06-22	431-405	not yet reported which blocks →	LES.NET (1996) Inc.	141F	Grandview	—
2020-06-22	431-406	not yet reported which blocks →	LES.NET (1996) Inc.	141F	Rivers	—
2020-06-22	469-842	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	PROSPER	TX
2020-06-22	470-610	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	ATLANTA NE	GA
2020-06-22	475-273	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CT	199F	BRIDGEPORT	CT
2020-06-22	623-632	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PHOENIX	AZ
2020-06-22	830-600	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	GRANITSHLS	TX
2020-06-22	864-589	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	UNION	SC
2020-06-22	940-900	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	LAKEDALLAS	TX
2020-06-19	276-465	0XXX1XXX7XXX8XXX9XXX · 2 holders which blocks →	FRACTEL, LLC	965H	BURKESGRDN	VA
2020-06-19	434-345	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	ALTAVISTA	VA
2020-06-19	434-900	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	HALIFAX	VA
2020-06-19	602-704	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AZ	587F	PHOENIX	AZ
2020-06-19	623-257	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AZ	587F	PHOENIX	AZ
2020-06-19	639-295	not yet reported which blocks →	SaskTel Mobility	9868	Saskatoon	—
2020-06-19	639-532	not yet reported which blocks →	SaskTel Mobility	9868	Regina	—
2020-06-19	672-986	not yet reported which blocks →	TELUS Mobility	8301	Kelowna	—

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.