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 928

ONVOY, LLC - AZ 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
2023-08-31	928-508	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	YUMA	AZ
2023-06-26	928-506	0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks →	ONVOY, LLC - AZ	630E	PIMA	AZ
2023-06-26	928-507	3XXX which blocks →	ONVOY, LLC - AZ	630E	MARBLECNYN	AZ
2022-09-26	928-928	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - AZ	630E	SOMERTON	AZ
2021-03-11	928-898	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	KINGMAN	AZ
2021-03-05	928-798	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AZ	630E	YUMA	AZ
2021-02-28	928-610	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	BULLHEADCY	AZ
2020-12-24	928-598	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AZ	630E	WIKIEUP	AZ
2020-12-23	928-397	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	CASTLEROCK	AZ
2020-12-23	928-449	0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	ONVOY, LLC - AZ	630E	LKMHVRNCHS	AZ
2020-12-23	928-519	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	MOHAVE VLY	AZ
2020-12-22	928-381	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	ONVOY, LLC - AZ	630E	GRANDCNYON	AZ
2020-12-22	928-393	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	PIMA	AZ
2020-12-22	928-394	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AZ	630E	BOUSE	AZ
2020-12-08	928-398	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AZ	630E	SOMERTON	AZ
2020-12-08	928-889	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	LKHAVASUCY	AZ
2020-12-08	928-981	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
2020-11-09	928-968	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	PRESCOTT	AZ
2020-10-22	928-538	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	BULLHEADCY	AZ
2020-08-25	928-307	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - AZ	630E	PAGE	AZ
2020-07-16	928-628	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AZ	630E	KINGMAN	AZ
2020-06-16	928-364	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AZ	630E	BLUE RIDGE	AZ
2020-06-16	928-365	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AZ	630E	GREENEHVN	AZ
2020-06-16	928-370	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AZ	630E	MARBLECNYN	AZ
2020-06-16	928-371	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX which blocks →	ONVOY, LLC - AZ	630E	MORMONLAKE	AZ
2020-06-16	928-378	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - AZ	630E	ROOSEVLTLK	AZ
2020-06-16	928-382	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AZ	630E	SALOME	AZ
2020-06-16	928-384	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AZ	630E	SUPAI	AZ
2020-06-02	928-918	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AZ	630E	HARQUHLVLY	AZ
2020-06-02	928-938	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AZ	630E	HYDER	AZ
2019-12-02	928-455	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AZ	630E	PEACH SPG	AZ
2019-05-28	928-352	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AZ	630E	KINGMAN	AZ
2018-06-28	928-260	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	WIKIEUP	AZ
2017-04-25	928-800	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	PRESCOTT	AZ
2016-07-13	928-291	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - AZ	630E	YUMA	AZ
2016-02-10	928-236	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	SOMERTON	AZ
2014-06-04	928-318	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - AZ	630E	YUMA	AZ
2013-02-13	928-723	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - AZ	630E	YUMA	AZ
2012-01-25	928-212	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AZ	630E	PAGE	AZ
2001-03-27	928-438	1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
—	928-222	not yet reported which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
—	928-223	not yet reported which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
—	928-267	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - AZ	630E	PAYSON	AZ
—	928-268	not yet reported which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
—	928-272	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AZ	630E	GRANDCNYON	AZ
—	928-324	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AZ	630E	SAFFORD	AZ
—	928-389	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AZ	630E	EHRENBERG	AZ
—	928-395	not yet reported which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
—	928-396	not yet reported which blocks →	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
—	928-437	not yet reported which blocks →	ONVOY, LLC - AZ	630E	GRANDCNYON	AZ

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.