Recent prefix assignments

0 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, all time — NPA 251

ONVOY, LLC - AL 66

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
2025-04-28	251-851	3XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	CLEAR SPG	AL
2024-02-29	251-482	0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	BAYMINETTE	AL
2024-01-08	251-469	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AL	604E	MOBILE	AL
2023-11-03	251-203	0XXX1XXX2XXX3XXX7XXX · 4 holders which blocks →	ONVOY, LLC - AL	604E	BELLEFONTN	AL
2023-10-16	251-468	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	MOBILE	AL
2023-09-13	251-205	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - AL	604E	MOBILE	AL
2023-08-25	251-467	2XXX which blocks →	ONVOY, LLC - AL	604E	EXCEL	AL
2023-06-29	251-453	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	CITRONELLE	AL
2023-04-18	251-710	0XXX1XXX2XXX7XXX8XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	ATMORE	AL
2023-03-21	251-334	0XXX2XXX3XXX4XXX which blocks →	ONVOY, LLC - AL	604E	URIAH	AL
2022-09-27	251-251	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	JACKSON	AL
2022-09-01	251-567	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	MCINTOSH	AL
2022-09-01	251-678	1XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	ONVOY, LLC - AL	604E	ATMORE	AL
2022-08-31	251-571	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AL	604E	BAYMINETTE	AL
2022-08-05	251-399	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AL	604E	EVERGREEN	AL
2022-04-11	251-389	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	CLEAR SPG	AL
2022-03-30	251-552	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	BAYOUBATRE	AL
2022-03-30	251-553	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	IRNGTNSTEL	AL
2022-03-30	251-556	4XXX5XXX6XXX which blocks →	ONVOY, LLC - AL	604E	FINCHBURG	AL
2022-03-30	251-557	1XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	PETERMAN	AL
2022-03-09	251-383	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AL	604E	FAIRHOPE	AL
2022-03-09	251-388	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	ATMORE	AL
2021-11-04	251-519	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	DAUPHIN IS	AL
2021-11-04	251-522	0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	COFFEEVL	AL
2021-09-03	251-521	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AL	604E	GRAND BAY	AL
2021-09-03	251-523	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	MT VERNON	AL
2021-05-25	251-515	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	BAYMINETTE	AL
2021-05-25	251-615	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	FAIRHOPE	AL
2021-05-19	251-880	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	ATMORE	AL
2021-01-25	251-339	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	GOSPORT	AL
2021-01-25	251-390	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	BAYOUBATRE	AL
2021-01-25	251-420	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	BEATRICE	AL
2021-01-25	251-430	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	COFFEEVL	AL
2021-01-25	251-440	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	FRISCOCITY	AL
2021-01-25	251-480	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	MONROEVL	AL
2021-01-25	251-530	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	PINE APPLE	AL
2021-01-22	251-350	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	BAYMINETTE	AL
2021-01-13	251-397	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	DAUPHIN IS	AL
2021-01-06	251-337	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AL	604E	REPTON	AL
2021-01-06	251-347	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	URIAH	AL
2020-12-21	251-910	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	MOBILE	AL
2020-06-11	251-810	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - AL	604E	GRAND BAY	AL
2019-10-14	251-512	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	COFFEEVL	AL
2019-10-14	251-850	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AL	604E	FAIRHOPE	AL
2019-01-07	251-900	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AL	604E	EXCEL	AL
2018-11-16	251-572	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	FRISCOCITY	AL
2018-10-12	251-651	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AL	604E	BAYMINETTE	AL
2018-09-19	251-351	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	BEATRICE	AL
2018-09-19	251-451	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	GOSPORT	AL
2018-09-19	251-551	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	PINE APPLE	AL

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.