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
2001-02-08	920-769	4XXX5XXX6XXX8XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	MANITOWOC	WI
2001-02-08	920-783	6XXX8XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	SHEBOYGAN	WI
2001-02-06	920-628	not yet reported which blocks →	WISCONSIN BELL INC	9327	APPLETON	WI
2001-02-05	920-230	not yet reported which blocks →	NORTHERN TELEPHONE AND DATA CORP. - WI	1519	OSHKOSH	WI
2001-02-05	920-602	3XXX4XXX5XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FONDDU LAC	WI
2001-02-05	920-698	3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SHEBOYGAN	WI
2001-02-05	920-860	2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MANITOWOC	WI
—	920-200	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	DE PERE	WI
—	920-202	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	UNITED STATES CELLULAR - WI	6274	APPLETON	WI
—	920-203	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	OSHKOSH	WI
—	920-204	0XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	FONDDU LAC	WI
—	920-205	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	APPLETON	WI
—	920-206	5XXX which blocks →	WISCONSIN BELL INC	9327	WATERTOWN	WI
—	920-207	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	SHEBOYGAN	WI
—	920-208	not yet reported which blocks →	WISCONSIN BELL INC	9327	SHEBOYGAN	WI
—	920-209	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	APPLETON	WI
—	920-210	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	BEAVER DAM	WI
—	920-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	920-212	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MAYVILLE	WI
—	920-213	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	APPLETON	WI
—	920-214	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MAYVILLE	WI
—	920-215	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	WISCONSIN BELL INC	9327	NEENAH	WI
—	920-217	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	GREEN BAY	WI
—	920-218	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	MANITOWOC	WI
—	920-219	3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	BEAVER DAM	WI
—	920-220	2XXX which blocks →	METROPCS, INC.	5562	JOHNSONCRK	WI
—	920-222	8XXX which blocks →	T-MOBILE USA, INC.	6529	LAKE MILLS	WI
—	920-223	not yet reported which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-224	2XXX3XXX4XXX5XXX which blocks →	NET LEC, INC.	6183	APPLETON	WI
—	920-225	9XXX which blocks →	WISCONSIN BELL INC	9327	APPLETON	WI
—	920-226	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SHEBOYGAN	WI
—	920-227	0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	GREEN BAY	WI
—	920-228	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CELL DBA CELLCOM	6692	SEYMOUR	WI
—	920-229	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	GREEN LAKE	WI
—	920-231	not yet reported which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-232	not yet reported which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-233	not yet reported which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-235	not yet reported which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-236	not yet reported which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-237	9XXX which blocks →	WISCONSIN BELL INC	9327	OSHKOSH	WI
—	920-238	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	UNITED STATES CELLULAR - WI	6274	FONDDU LAC	WI
—	920-239	1XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	WAUPUN	WI
—	920-241	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	DE PERE	WI
—	920-242	none assigned yet which blocks →	METROPCS, INC.	5562	MANITOWOC	WI
—	920-243	3XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	APPLETON	WI
—	920-244	0XXX2XXX4XXX6XXX · 4 holders which blocks →	MANAWA TEL. CO., INC.	0905	OGDENSBURG	WI
—	920-245	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC WI	7216	WATERTOWN	WI
—	920-246	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	GREEN BAY	WI
—	920-248	none assigned yet which blocks →	METROPCS, INC.	5562	WATERTOWN	WI
—	920-249	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEW LONDON	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.