Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 — NPA 262

U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1

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
—	262-320	1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	CALEDONIA	WI
—	262-322	not yet reported which blocks →	SPOK, INC.	6630	LAKEGENEVA	WI
—	262-324	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	PARKSIDE	WI
—	262-325	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	LAKEGENEVA	WI
—	262-326	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	NORTH LAKE	WI
—	262-327	5XXX7XXX8XXX which blocks →	T-MOBILE USA, INC.	6529	MILWAUKZN2	WI
—	262-328	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	HUBERTUS	WI
—	262-331	2XXX5XXX6XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	PARKSIDE	WI
—	262-332	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	WATERFORD	WI
—	262-334	not yet reported which blocks →	WISCONSIN BELL INC	9327	WEST BEND	WI
—	262-335	not yet reported which blocks →	WISCONSIN BELL INC	9327	WEST BEND	WI
—	262-338	not yet reported which blocks →	WISCONSIN BELL INC	9327	WEST BEND	WI
—	262-342	2XXX5XXX6XXX8XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	BURLINGTON	WI
—	262-346	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 TELECOM OF WISCONSIN, LP - WI	7322	WEST BEND	WI
—	262-347	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	WISCONSIN BELL INC	9327	WAUKESHA	WI
—	262-348	6XXX7XXX8XXX which blocks →	WISCONSIN BELL INC	9327	LAKEGENEVA	WI
—	262-353	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WEST BEND	WI
—	262-355	0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	NEWBURG	WI
—	262-358	4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KENOSHA	WI
—	262-361	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 8 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	HARTLAND	WI
—	262-363	not yet reported which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0922	MUKWONAGO	WI
—	262-364	1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 TELECOM OF WISCONSIN, LP - WI	7322	MILWAUKZN2	WI
—	262-366	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WAUKESHA	WI
—	262-367	not yet reported which blocks →	WISCONSIN BELL INC	9327	HARTLAND	WI
—	262-368	0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 8 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	MUKWONAGO	WI
—	262-369	not yet reported which blocks →	WISCONSIN BELL INC	9327	HARTLAND	WI
—	262-370	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	HARTLAND	WI
—	262-373	6XXX7XXX8XXX9XXX · 3 holders which blocks →	WISCONSIN BELL INC	9327	MILWAUKZN2	WI
—	262-375	not yet reported which blocks →	WISCONSIN BELL INC	9327	CEDARBURG	WI
—	262-376	not yet reported which blocks →	WISCONSIN BELL INC	9327	CEDARBURG	WI
—	262-377	not yet reported which blocks →	WISCONSIN BELL INC	9327	CEDARBURG	WI
—	262-381	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	WEST BEND	WI
—	262-387	3XXX7XXX9XXX · 2 holders which blocks →	WISCONSIN BELL INC	9327	CEDARBURG	WI
—	262-388	4XXX5XXX6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WEST BEND	WI
—	262-391	2XXX which blocks →	T-MOBILE USA, INC.	6529	WAUKESHA	WI
—	262-392	4XXX6XXX7XXX8XXX · 3 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0922	NO PRAIRIE	WI
—	262-394	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	WALWORTH	WI
—	262-395	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MILWAUKZN2	WI
—	262-396	0XXX2XXX3XXX5XXX6XXX · 3 holders which blocks →	ILLINOIS BELL TEL CO	9329	NO ANTIOCH	WI
—	262-397	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	HARTFORD	WI
—	262-404	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	THIENSVL	WI
—	262-408	0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WAUKESHA	WI
—	262-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	262-412	not yet reported which blocks →	T-MOBILE USA, INC.	6529	RACINE	WI
—	262-415	2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MENOMONFLS	WI
—	262-417	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	RACINE	WI
—	262-423	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	JACKSON	WI
—	262-424	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	MILWAUKZN2	WI
—	262-427	1XXX6XXX7XXX8XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	DELAVAN	WI
—	262-428	not yet reported which blocks →	SPOK, INC.	6630	WEST BEND	WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.