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
2016-05-11	254-964	0–9 XXXall 10 · 4 holders which blocks →	PATHWAY COM-TEL, INC. - TX	8253	STEPHENVL	TX
2016-05-11	309-512	0–9 XXXall 10 · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	PEORIA	IL
2016-05-11	346-258	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	SHELDON	TX
2016-05-11	424-309	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	INGLEWOOD	CA
2016-05-11	424-317	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	W ANGELES	CA
2016-05-11	442-206	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC - CA	649C	IMPERIAL	CA
2016-05-11	606-240	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - KY	896E	OLIVE HILL	KY
2016-05-11	619-369	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - CA	649C	HARBSNALPN	CA
2016-05-11	639-222	not yet reported which blocks →	Bell West Inc.	2933	Prince Albert	—
2016-05-11	639-223	not yet reported which blocks →	Bell West Inc.	2933	Moose Jaw	—
2016-05-11	639-224	not yet reported which blocks →	Bell West Inc.	2933	Yorkton	—
2016-05-11	639-225	not yet reported which blocks →	Bell West Inc.	2933	North Battleford	—
2016-05-11	639-226	not yet reported which blocks →	Bell West Inc.	2933	Swift Current	—
2016-05-11	650-410	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	SSNFRNCSCO	CA
2016-05-11	740-873	0XXX1XXX3XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - OH	464C	HANOVER	OH
2016-05-11	740-880	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - OH	464C	GRANVILLE	OH
2016-05-11	740-890	0XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - OH	464C	ST LOUISVL	OH
2016-05-11	747-212	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	AGOURA	CA
2016-05-11	805-429	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	POINT MUGU	CA
2016-05-11	873-203	not yet reported which blocks →	TELUS Quebec	2243	St-Pierre-Les-Becquets	—
2016-05-11	873-204	not yet reported which blocks →	TELUS Quebec	2243	St-Wenceslas	—
2016-05-11	909-310	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CA	649C	CHINO	CA
2016-05-11	909-323	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	DIAMONDBAR	CA
2016-05-11	909-406	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	REDLANDS	CA
2016-05-11	912-328	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	SAVANNAH	GA
2016-05-11	949-577	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CA	649C	IRVINE	CA
2016-05-11	956-582	0XXX7XXX · 2 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	SANPERLITA	TX
2016-05-11	956-671	7XXX which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	SAN ISIDRO	TX
2016-05-10	442-205	0–9 XXXall 10 · 6 holders which blocks →	METROPCS NETWORKS, LLC	899D	YUCCA VLY	CA
2016-05-10	470-307	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - GA	6116	ATLANTA NE	GA
2016-05-10	470-317	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	ATLANTA SO	GA
2016-05-10	531-210	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	OMAHA	NE
2016-05-10	606-366	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - KY	896E	EWING	KY
2016-05-10	623-235	0–9 XXXall 10 · 5 holders which blocks →	QWEST CORPORATION	9636	PHOENIX	AZ
2016-05-10	667-458	0–9 XXXall 10 · 8 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2016-05-10	717-356	0–9 XXXall 10 · 5 holders which blocks →	VERIZON NORTH, INC. - PA	0169	YORK	PA
2016-05-10	720-595	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CO	6118	DENVER	CO
2016-05-10	782-462	not yet reported which blocks →	Bragg Communications Inc.	4878	New London	—
2016-05-10	807-808	not yet reported which blocks →	Iristel Inc.	154E	Hudson	—
2016-05-10	807-907	not yet reported which blocks →	Iristel Inc.	154E	Devlin	—
2016-05-10	956-397	7XXX8XXX9XXX · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	EL SAUZ	TX
2016-05-10	956-557	5XXX7XXX · 2 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	MCCOOK	TX
2016-05-10	956-653	7XXX which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	HARGILL	TX
2016-05-09	208-701	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	IDAHOFALLS	ID
2016-05-09	236-526	not yet reported which blocks →	Navigata Communications Limited	078G	Fernie	—
2016-05-09	236-527	not yet reported which blocks →	Navigata Communications Limited	078G	Invermere	—
2016-05-09	236-528	not yet reported which blocks →	Navigata Communications Limited	078G	Kimberley	—
2016-05-09	236-529	not yet reported which blocks →	Navigata Communications Limited	078G	Radium	—
2016-05-09	236-530	not yet reported which blocks →	Navigata Communications Limited	078G	Skookumchuck	—
2016-05-09	236-531	not yet reported which blocks →	Navigata Communications Limited	078G	Sparwood	—

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.