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
2016-06-08	825-827	not yet reported which blocks →	Distributel	081E	Athabasca	—
2016-06-08	825-828	not yet reported which blocks →	Distributel	081E	Bon Accord	—
2016-06-08	825-829	not yet reported which blocks →	Distributel	081E	Boyle	—
2016-06-08	825-830	not yet reported which blocks →	Distributel	081E	Bruderheim	—
2016-06-08	825-831	not yet reported which blocks →	Distributel	081E	Calling Lake	—
2016-06-08	825-832	not yet reported which blocks →	Distributel	081E	Chipman	—
2016-06-08	825-833	not yet reported which blocks →	Distributel	081E	Edmonton International Airport	—
2016-06-08	825-834	not yet reported which blocks →	Distributel	081E	Fort Saskatchewan	—
2016-06-08	825-835	not yet reported which blocks →	Distributel	081E	Gibbons	—
2016-06-08	825-836	not yet reported which blocks →	Distributel	081E	Grassland	—
2016-06-08	825-837	not yet reported which blocks →	Distributel	081E	Lac La Biche	—
2016-06-08	825-838	not yet reported which blocks →	Distributel	081E	Lamont	—
2016-06-08	825-839	not yet reported which blocks →	Distributel	081E	Newbrook	—
2016-06-08	825-840	not yet reported which blocks →	Distributel	081E	Plamondon	—
2016-06-08	825-841	not yet reported which blocks →	Distributel	081E	Radway	—
2016-06-08	825-842	not yet reported which blocks →	Distributel	081E	Redwater	—
2016-06-08	825-843	not yet reported which blocks →	Distributel	081E	Smoky Lake	—
2016-06-08	825-844	not yet reported which blocks →	Distributel	081E	St. Michael	—
2016-06-08	825-845	not yet reported which blocks →	Distributel	081E	Thorhild	—
2016-06-08	825-846	not yet reported which blocks →	Distributel	081E	Tofield	—
2016-06-08	825-848	not yet reported which blocks →	Distributel	081E	Wandering River	—
2016-06-08	825-849	not yet reported which blocks →	Distributel	081E	Warspite	—
2016-06-08	825-850	not yet reported which blocks →	Distributel	081E	Waskatenau	—
2016-06-08	951-483	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PERRIS	CA
2016-06-07	226-994	not yet reported which blocks →	Fido Solutions Inc.	8820	St. Thomas	—
2016-06-07	509-902	0–9 XXXall 10 · 7 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	YAKIMA	WA
2016-06-07	579-640	not yet reported which blocks →	Videotron Ltd.	8306	Chomedey	—
2016-06-07	579-641	not yet reported which blocks →	Videotron Ltd.	8306	Ste-Rose	—
2016-06-07	587-205	not yet reported which blocks →	Iristel Inc.	154E	Peace River	—
2016-06-07	587-206	not yet reported which blocks →	Iristel Inc.	154E	Stony Plain	—
2016-06-07	631-381	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	RIVERHEAD	NY
2016-06-07	825-800	not yet reported which blocks →	Iristel Inc.	154E	Calgary	—
2016-06-07	828-793	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ASHEVILLE	NC
2016-06-06	385-297	0–9 XXXall 10 · 4 holders which blocks →	QWEST CORPORATION	9636	SALT LAKE	UT
2016-06-06	579-475	not yet reported which blocks →	ISP Telecom Inc.	4727	L'Epiphanie-l'Assomption	—
2016-06-06	740-889	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CIRCLEVL	OH
2016-06-06	873-476	not yet reported which blocks →	ISP Telecom Inc.	4727	Val-D'Or	—
2016-06-06	934-420	2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks →	CABLEVISION LIGHTPATH, INC. - NY	7126	FARMINGDL	NY
2016-06-03	406-970	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	BILLINGS	MT
2016-06-03	475-300	0–9 XXXall 10 · 4 holders which blocks →	VONAGE AMERICA LLC	197D	NEW HAVEN	CT
2016-06-03	563-214	0–9 XXXall 10 · 7 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	DAVENPORT	IA
2016-06-03	631-931	0–9 XXXall 10 · 7 holders which blocks →	WIDE VOICE, LLC - NY	705G	E HAMPTON	NY
2016-06-03	646-868	0–9 XXXall 10 · 5 holders which blocks →	VONAGE AMERICA LLC	197D	NWYRCYZN01	NY
2016-06-03	715-293	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HUDSON	WI
2016-06-03	779-248	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	GALENA	IL
2016-06-03	813-853	0–9 XXXall 10 · 3 holders which blocks →	VONAGE AMERICA LLC	197D	TAMPACEN	FL
2016-06-03	910-513	5XXX9XXX · 2 holders which blocks →	WINDSTREAM NORTH CAROLINA, INC.	0476	LAURELHILL	NC
2016-06-03	913-280	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2016-06-03	937-990	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	XENIA	OH
2016-06-02	331-252	0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	WARRENVL	IL

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.