Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 920

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
—	920-586	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	APPLETON	WI
—	920-589	1XXX4XXX · 2 holders which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	PICKETT	WI
—	920-592	not yet reported which blocks →	WISCONSIN BELL INC	9327	GREEN BAY	WI
—	920-596	0XXX6XXX · 2 holders which blocks →	MANAWA TEL. CO., INC.	0905	MANAWA	WI
—	920-604	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	ABRAMS	WI
—	920-605	1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 7 holders which blocks →	T-MOBILE USA, INC.	6529	JEFFERSON	WI
—	920-606	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-609	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	920-613	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-614	2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	ONVOY, LLC - WI	225C	RIO	WI
—	920-615	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-616	not yet reported which blocks →	SPOK, INC.	6630	APPLETON	WI
—	920-617	not yet reported which blocks →	NET LEC, INC.	6183	GREEN BAY	WI
—	920-618	0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SURING	WI
—	920-619	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-620	1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks →	MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS	698E	KINGSTON	WI
—	920-621	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-622	2XXX6XXX7XXX · 3 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0922	WILD ROSE	WI
—	920-623	8XXX which blocks →	WISCONSIN BELL INC	9327	COLUMBUS	WI
—	920-625	0XXX1XXX6XXX9XXX · 3 holders which blocks →	FRONTIER NORTH INC. - WI	0886	NEOSHO	WI
—	920-626	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	COLUMBUS	WI
—	920-627	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	SHEBOYGAN	WI
—	920-629	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MANITOWOC	WI
—	920-630	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	UNITED STATES CELLULAR - WI	6274	COLUMBUS	WI
—	920-632	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	DE PERE	WI
—	920-634	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	GREEN BAY	WI
—	920-635	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	PLYMOUTH	WI
—	920-636	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	APPLETON	WI
—	920-637	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	UNITED STATES CELLULAR - WI	6274	NEENAH	WI
—	920-638	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	FONDDU LAC	WI
—	920-639	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-640	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	JEFFERSON	WI
—	920-642	9XXX which blocks →	NEW CELL DBA CELLCOM	6692	OSHKOSH	WI
—	920-645	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	MANITOWOC	WI
—	920-648	0XXX9XXX · 2 holders which blocks →	FRONTIER NORTH INC. - WI	0886	LAKE MILLS	WI
—	920-650	3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JEFFERSON	WI
—	920-651	0–9 XXXall 10 · 3 holders which blocks →	TDS METROCOM, LLC	520K	OSHKOSH	WI
—	920-652	4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	WISCONSIN BELL INC	9327	MANITOWOC	WI
—	920-655	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-658	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	ONVOY, LLC - WI	225C	OMRO	WI
—	920-660	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	GREEN BAY	WI
—	920-661	7XXX8XXX · 2 holders which blocks →	WISCONSIN BELL INC	9327	GREEN BAY	WI
—	920-662	3XXX4XXX6XXX · 2 holders which blocks →	WISCONSIN BELL INC	9327	GREEN BAY	WI
—	920-663	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	MANITOWOC	WI
—	920-664	3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GREEN BAY	WI
—	920-665	not yet reported which blocks →	SPOK, INC.	6630	GREEN BAY	WI
—	920-667	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	BRIGHTSPEED OF EAST CENTRAL WISCONSIN, LLC	0898	READFIELD	WI
—	920-668	0XXX1XXX2XXX3XXX5XXX7XXX9XXX · 4 holders which blocks →	FRONTIER NORTH INC. - WI	0886	CEDARGROVE	WI
—	920-671	1XXX2XXX5XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OCONTO FLS	WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.