Recent prefix assignments

4 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 254

ONVOY, LLC - TX 4

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
—	254-285	1XXX4XXX7XXX8XXX9XXX · 2 holders which blocks →	BRIGHTSPEED OF TEXAS, INC.	2114	KILLEEN	TX
—	254-286	not yet reported which blocks →	BRIGHTSPEED OF TEXAS, INC.	2114	KILLEEN	TX
—	254-287	not yet reported which blocks →	BRIGHTSPEED OF TEXAS, INC.	2114	FORT HOOD	TX
—	254-288	not yet reported which blocks →	BRIGHTSPEED OF TEXAS, INC.	2114	FORT HOOD	TX
—	254-289	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KILLEEN	TX
—	254-290	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	KILLEEN	TX
—	254-291	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KILLEEN	TX
—	254-292	0XXX2XXX3XXX8XXX9XXX which blocks →	SOUTHWESTERN BELL	9533	WACO	TX
—	254-295	0XXX1XXX3XXX6XXX7XXX9XXX · 5 holders which blocks →	SOUTHWESTERN BELL	9533	TEMPLE	TX
—	254-296	1XXX4XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	WACO	TX
—	254-297	9XXX which blocks →	SOUTHWESTERN BELL	9533	WACO	TX
—	254-298	9XXX which blocks →	SOUTHWESTERN BELL	9533	TEMPLE	TX
—	254-299	3XXX5XXX7XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	WACO	TX
—	254-303	not yet reported which blocks →	HELMSCO, INC.	6833	TEAGUE	TX
—	254-305	not yet reported which blocks →	BRIGHTSPEED OF TEXAS, INC.	2114	KILLEEN	TX
—	254-309	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	ROSEBUD	TX
—	254-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	254-323	0–9 XXXall 10 · 3 holders which blocks →	TELNYX LLC	073H	EDDY	TX
—	254-333	not yet reported which blocks →	HELMSCO, INC.	6833	KILLEEN	TX
—	254-334	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	EASTLAND	TX
—	254-336	0–9 XXXwhole prefix which blocks →	BRIGHTSPEED OF TEXAS, INC.	2114	KILLEEN	TX
—	254-337	2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	METROPCS, INC.	5562	HILLSBORO	TX
—	254-338	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	KILLEEN	TX
—	254-344	0XXX which blocks →	WINDSTREAM SUGAR LAND, LLC	2147	PRAIRIE HL	TX
—	254-352	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	STEPHENVL	TX
—	254-353	none assigned yet which blocks →	WINDSTREAM SUGAR LAND, LLC	2147	SANDY	TX
—	254-355	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - TX	903C	MEXIA	TX
—	254-359	not yet reported which blocks →	ALENCO COMMUNICATIONS, INC.	2090	DONIE	TX
—	254-364	6XXX which blocks →	TEXAS WINDSTREAM, LLC	2153	IREDELL	TX
—	254-368	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KILLEEN	TX
—	254-371	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	COPPERASCV	TX
—	254-372	6XXX which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	POTTSVILLE	TX
—	254-375	6XXX7XXX8XXX · 3 holders which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	KOSSE	TX
—	254-377	not yet reported which blocks →	GLOBALSTAR USA, INC.	3685	WACO	TX
—	254-378	not yet reported which blocks →	GLOBALSTAR USA, INC.	3685	WACO	TX
—	254-379	9XXX which blocks →	METROPCS, INC.	5562	WACO	TX
—	254-381	not yet reported which blocks →	GLOBALSTAR USA, INC.	3685	WACO	TX
—	254-384	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	VALLEY ML	TX
—	254-385	8XXX which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	THORNTON	TX
—	254-386	none assigned yet which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	HAMILTON	TX
—	254-388	not yet reported which blocks →	SOUTHWESTERN BELL	9533	WACO	TX
—	254-392	6XXX7XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	KILLEEN	TX
—	254-394	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	KILLEEN	TX
—	254-395	0XXX which blocks →	WINDSTREAM SUGAR LAND, LLC	2147	TEHUACANA	TX
—	254-396	7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GLEN ROSE	TX
—	254-398	not yet reported which blocks →	TELETOUCH COMMUNICATIONS, INC.	6591	WACO	TX
—	254-399	not yet reported which blocks →	SOUTHWESTERN BELL	9533	WACO	TX
—	254-403	0XXX1XXX7XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DE LEON	TX
—	254-404	none assigned yet which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	GATESVILLE	TX
—	254-405	6XXX7XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	WACO	TX

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.