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 618

ONVOY, LLC 27

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
2023-08-22	618-991	0XXX1XXX2XXX3XXX · 4 holders which blocks →	ONVOY, LLC	224C	RAMSEY	IL
2023-08-16	618-990	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC	224C	WOOD RIVER	IL
2023-07-26	618-970	0XXX2XXX3XXX · 3 holders which blocks →	ONVOY, LLC	224C	AVA	IL
2022-12-08	618-812	0–9 XXXwhole prefix which blocks →	ONVOY, LLC	224C	IUKA	IL
2022-12-08	618-914	0–9 XXXwhole prefix which blocks →	ONVOY, LLC	224C	KASKASKIA	IL
2022-05-09	618-848	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC	224C	CENTRALIA	IL
2020-07-06	618-591	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC	224C	ELDORADO	IL
2020-07-06	618-598	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC	224C	OKAWVILLE	IL
2020-06-05	618-620	0XXX1XXX2XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC	224C	HAMBURG	IL
2019-12-30	618-718	1XXX2XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC	224C	ALBION	IL
2019-12-18	618-617	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC	224C	OLNEY	IL
2018-10-23	618-492	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC	224C	EDGEWOOD	IL
2018-08-01	618-668	0XXX1XXX2XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC	224C	GOLCONDA	IL
2017-10-18	618-500	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	GRANITE CY	IL
2017-10-02	618-900	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC	224C	COLLINSVL	IL
2016-08-25	618-716	0–9 XXXall 10 · 8 holders which blocks →	ONVOY, LLC	224C	TRENTON	IL
2016-08-24	618-801	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	GRANITE CY	IL
2016-08-24	618-961	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC	224C	GLENCARBON	IL
2016-05-13	618-491	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC	224C	COLLINSVL	IL
2015-09-25	618-600	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC	224C	GRANITE CY	IL
2015-09-24	618-666	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC	224C	COLLINSVL	IL
2015-09-16	618-800	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	EDWARDSVL	IL
2015-03-02	618-999	0–9 XXXwhole prefix which blocks →	ONVOY, LLC	224C	EDWARDSVL	IL
2011-02-17	618-300	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	CARBONDALE	IL
2008-05-12	618-855	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC	224C	COLLINSVL	IL
—	618-400	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC	224C	MILLSTADT	IL
—	618-431	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC	224C	VANDALIA	IL

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.