Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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 28

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 23

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

Quick find in this area code:

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	608-767	6XXX7XXX · 2 holders which blocks →	BLACK EARTH TEL. CO.	0849	BLACKEARTH	WI
—	608-768	not yet reported which blocks →	ONVOY, LLC - WI	225C	REEDSBURG	WI
—	608-769	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	LA CROSSE	WI
—	608-770	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MADISON	WI
—	608-772	7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MADISON	WI
—	608-774	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JANESVILLE	WI
—	608-775	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-776	not yet reported which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	DARLINGTON	WI
—	608-778	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	PLATTEVL	WI
—	608-779	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-780	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	LA CROSSE	WI
—	608-781	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-782	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-783	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-784	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-785	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-786	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	WEST SALEM	WI
—	608-787	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-788	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-789	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-790	9XXX which blocks →	UNITED STATES CELLULAR - WI	6274	LA CROSSE	WI
—	608-791	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-792	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	LA CROSSE	WI
—	608-793	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-794	not yet reported which blocks →	FARMERS TEL. CO.	0880	BEETOWN	WI
—	608-795	3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC	0924	MAZOMANIE	WI
—	608-796	not yet reported which blocks →	BRIGHTSPEED OF WISCONSIN, LLC	0895	LA CROSSE	WI
—	608-797	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	LA CROSSE	WI
—	608-798	none assigned yet which blocks →	MID-PLAINS TEL., INC.	0881	CROSS PL	WI
—	608-799	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	LA CROSSE	WI
—	608-807	2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	MADISON	WI
—	608-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	608-820	0–9 XXXall 10 · 4 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	MIDDLETON	WI
—	608-821	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-822	1XXX5XXX9XXX · 2 holders which blocks →	GRANTLAND TELECOM, INC.	0930	FENNIMORE	WI
—	608-823	8XXX which blocks →	BRIGHTSPEED OF MIDWEST WISCONSIN, LLC	0913	NORWALK	WI
—	608-824	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-825	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	SUNPRAIRIE	WI
—	608-826	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-827	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-828	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-829	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-831	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-832	7XXX which blocks →	MT. VERNON TEL. CO.	0917	MT VERNON	WI
—	608-833	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-834	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	SUNPRAIRIE	WI
—	608-835	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	OREGON	WI
—	608-836	not yet reported which blocks →	MID-PLAINS TEL., INC.	0881	MIDDLETON	WI
—	608-837	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	SUNPRAIRIE	WI
—	608-838	1XXX which blocks →	FRONTIER NORTH INC. - WI	0886	MCFARLAND	WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.