Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
—	903-828	not yet reported which blocks →	SPOK, INC.	6630	GREENVILLE	TX
—	903-829	0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	OAKLAND	TX
—	903-831	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	TEXARKANA	TX
—	903-832	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	TEXARKANA	TX
—	903-833	0XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	BENWHEELER	TX
—	903-834	8XXX which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	OVERTON	TX
—	903-835	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	MARIETTA	TX
—	903-836	none assigned yet which blocks →	EASTEX TEL. COOP., INC.	2068	OAK HILL	TX
—	903-837	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	903-838	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	TEXARKANA	TX
—	903-839	not yet reported which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	2154	WHITEHOUSE	TX
—	903-841	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	GILMER	TX
—	903-842	not yet reported which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	TROUP	TX
—	903-843	0XXX1XXX7XXX8XXX · 2 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	GILMER	TX
—	903-844	0XXX5XXX6XXX7XXX · 4 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	GLADEWATER	TX
—	903-845	not yet reported which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	GLADEWATER	TX
—	903-846	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	DOUGLASSVL	TX
—	903-847	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	TURNERTOWN	TX
—	903-848	2XXX3XXX5XXX6XXX8XXX · 2 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	JACKSON	TX
—	903-849	not yet reported which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	CHANDLER	TX
—	903-850	5XXX6XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DRY CREEK	TX
—	903-851	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	CORSICANA	TX
—	903-852	1XXX9XXX · 2 holders which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	BROWNSBORO	TX
—	903-853	0XXX5XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	PITTSBURG	TX
—	903-854	6XXX which blocks →	EASTEX TEL. COOP., INC.	2068	GOOD SPG	TX
—	903-855	3XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	PITTSBURG	TX
—	903-856	0XXX9XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	PITTSBURG	TX
—	903-857	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	2154	PINE MILLS	TX
—	903-858	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	2154	REDSPRINGS	TX
—	903-859	5XXX6XXX7XXX8XXX · 4 holders which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	ARP	TX
—	903-860	not yet reported which blocks →	PEOPLES TEL. COOP.	2130	CYPRESSSPG	TX
—	903-861	1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	PRICE	TX
—	903-862	not yet reported which blocks →	PEOPLES TEL. COOP.	2130	CAMPBELL	TX
—	903-863	none assigned yet which blocks →	EASTEX TEL. COOP., INC.	2068	LANEVILLE	TX
—	903-865	0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	MYRTLE SPG	TX
—	903-866	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	2154	PICKTON	TX
—	903-868	not yet reported which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	SHERMAN	TX
—	903-870	none assigned yet which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	SHERMAN	TX
—	903-871	0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	2154	WHITEHOUSE	TX
—	903-872	not yet reported which blocks →	SOUTHWESTERN BELL	9533	CORSICANA	TX
—	903-873	0XXX7XXX9XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	WILLSPOINT	TX
—	903-874	not yet reported which blocks →	SOUTHWESTERN BELL	9533	CORSICANA	TX
—	903-875	2XXX5XXX6XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	CORSICANA	TX
—	903-876	not yet reported which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	FRANKSTON	TX
—	903-877	0XXX which blocks →	SOUTHWESTERN BELL	9533	OWENTOWN	TX
—	903-878	not yet reported which blocks →	PEOPLES TEL. COOP.	2130	DRY CREEK	TX
—	903-879	6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CORSICANA	TX
—	903-880	none assigned yet which blocks →	BRIGHTSPEED OF EASTERN TEXAS, INC.	2084	MABANK	TX
—	903-881	2XXX3XXX5XXX6XXX7XXX · 4 holders which blocks →	SOUTHWESTERN BELL	9533	LINDL SWAN	TX
—	903-882	not yet reported which blocks →	SOUTHWESTERN BELL	9533	LINDL SWAN	TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.