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 830

ONVOY, LLC - TX 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
—	830-796	2XXX which blocks →	SOUTHWESTERN BELL	9533	BANDERA	TX
—	830-798	not yet reported which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	MARBLE FLS	TX
—	830-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	830-816	0XXX5XXX7XXX9XXX · 2 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	BOERNE	TX
—	830-822	not yet reported which blocks →	T-MOBILE USA, INC.	6529	NEWBRANFLS	TX
—	830-825	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	ROUND MT	TX
—	830-832	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	NEWBRANFLS	TX
—	830-833	3XXX8XXX · 2 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	BLANCO	TX
—	830-839	none assigned yet which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	ROCKYCREEK	TX
—	830-850	1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	MATRIX TELECOM, LLC. S/I/I TNCI - TX	7715	BANDERA	TX
—	830-851	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	MATRIX TELECOM, LLC. S/I/I TNCI - TX	7715	DEVINE	TX
—	830-854	2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CRYSTAL CY	TX
—	830-857	7XXX which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	GONZALES	TX
—	830-864	not yet reported which blocks →	WINDSTREAM COMMUNICATIONS KERRVILLE, L.P.	2097	HARPER	TX
—	830-866	not yet reported which blocks →	HILL COUNTRY TEL. COOP., INC.	2086	MT HOME	TX
—	830-867	0–9 XXXall 10 · 9 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	BRACKETTVL	TX
—	830-868	6XXX8XXX · 2 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	JOHNSON CY	TX
—	830-875	0XXX4XXX7XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	LULING	TX
—	830-876	none assigned yet which blocks →	SOUTHWESTERN BELL	9533	CARRIZOSPG	TX
—	830-879	0XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	SOUTHWESTERN BELL	9533	COTULLA	TX
—	830-885	not yet reported which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	SMITHSOVLY	TX
—	830-889	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FREDECKSBG	TX
—	830-893	not yet reported which blocks →	MATRIX TELECOM, LLC. S/I/I TNCI - TX	7715	NEWBRANFLS	TX
—	830-895	not yet reported which blocks →	WINDSTREAM COMMUNICATIONS KERRVILLE, L.P.	2097	KERRVILLE	TX
—	830-896	not yet reported which blocks →	WINDSTREAM COMMUNICATIONS KERRVILLE, L.P.	2097	KERRVILLE	TX
—	830-899	not yet reported which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	CRANESMILL	TX
—	830-900	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	UVALDE	TX
—	830-904	5XXX8XXX9XXX · 2 holders which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	SMITHSOVLY	TX
—	830-905	5XXX which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	CRANESMILL	TX
—	830-906	9XXX which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	HANCOCK	TX
—	830-907	6XXX9XXX · 2 holders which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	SATTLER	TX
—	830-911	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	830-914	0XXX5XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	MARION	TX
—	830-929	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	BOERNE	TX
—	830-931	1XXX6XXX7XXX8XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	CASTROVL	TX
—	830-934	not yet reported which blocks →	ALENCO COMMUNICATIONS, INC.	2090	KNIPPA	TX
—	830-935	5XXX8XXX · 2 holders which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	HANCOCK	TX
—	830-947	1XXX2XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	2154	SUTHELDSPG	TX
—	830-950	not yet reported which blocks →				TX
—	830-953	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANITSHLS	TX
—	830-958	not yet reported which blocks →				TX
—	830-959	not yet reported which blocks →				TX
—	830-964	1XXX8XXX · 2 holders which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	SATTLER	TX
—	830-965	0XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	4344	DILLEY	TX
—	830-966	not yet reported which blocks →	SOUTHWEST TEXAS TEL. CO.	2135	UTOPIA	TX
—	830-968	not yet reported which blocks →	STPCS JOINT VENTURE, LLC	4290	EAGLE PASS	TX
—	830-976	not yet reported which blocks →				TX
—	830-980	not yet reported which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	BULVERDE	TX
—	830-981	not yet reported which blocks →	GUADALUPE VALLEY TEL. COOP., INC.	2083	BALCONES	TX
—	830-984	0XXX4XXX5XXX6XXX8XXX · 2 holders which blocks →	ONVOY, LLC - TX	903C	JOHNSON CY	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.