Recent prefix assignments

1 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, last 30 days — NPA 458

ONVOY, LLC - OR 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
2026-09-14	458-352	0XXX1XXX which blocks →	ONVOY, LLC - OR	750E	HERMISTON	OR
2026-08-13	458-348	0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	BEND	OR
2026-07-28	458-403	2XXX which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	ALBANY	OR
2026-07-24	458-363	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - OR	750E	EUGENE	OR
2026-07-22	458-341	0XXX which blocks →	ONVOY, LLC - OR	750E	CENTRAL PT	OR
2026-07-22	458-342	0XXX which blocks →	ONVOY, LLC - OR	750E	CORVALLIS	OR
2026-07-08	458-340	0XXX which blocks →	ONVOY, LLC - OR	750E	NEWPORT	OR
2026-05-21	458-362	0XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	MYRTLE CRK	OR
2026-05-13	458-361	not yet reported which blocks →	SHELCOMM	0051	BEND	OR
2026-04-20	458-360	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	EUGENE	OR
2026-01-27	458-339	0–9 XXXall 10 · 4 holders which blocks →	WAVENATION, LLC	700J	EUGENE	OR
2025-12-10	458-337	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	ALBANY	OR
2025-12-10	458-338	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	BEND	OR
2025-12-03	458-359	9XXX which blocks →	T-MOBILE USA, INC.	6529	MILTONFWTR	OR
2025-11-12	458-358	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	EUGENE	OR
2025-11-06	458-357	0XXX8XXX9XXX · 3 holders which blocks →	T-MOBILE USA, INC.	6529	MADRAS	OR
2025-10-29	458-354	0XXX1XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	KLAMATHFLS	OR
2025-10-28	458-353	0XXX3XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OR	076F	PILOT ROCK	OR
2025-10-15	458-351	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OR	750E	EUGENE	OR
2025-09-12	458-350	0XXX7XXX · 2 holders which blocks →	TDS BROADBAND SERVICE LLC	641H	LAPINE	OR
2025-09-09	458-349	0XXX1XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	BAKER	OR
2025-06-26	458-347	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ALBANY	OR
2025-04-16	458-346	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - OR	750E	MEDFORD	OR
2025-04-15	458-458	0–9 XXXall 10 · 2 holders which blocks →	WIDE VOICE, LLC - OR	745G	EUGENE	OR
2025-04-11	458-344	0–9 XXXall 10 · 2 holders which blocks →	NUSO, LLC	478J	EUGENE	OR
2025-03-21	458-343	0–9 XXXall 10 · 4 holders which blocks →	TDS BROADBAND SERVICE LLC	641H	BEND	OR
2025-02-12	458-336	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - OR	750E	REDMOND	OR
2024-12-02	458-335	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	EUGENE	OR
2024-11-22	458-334	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	EUGENE	OR
2024-10-10	458-332	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - OR	750E	GRANTSPASS	OR
2024-09-12	458-331	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	EUGENE	OR
2024-07-19	458-330	0XXX1XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PHILOMATH	OR
2024-06-25	458-329	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	BEND	OR
2024-05-22	458-328	0XXX1XXX2XXX8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	SISTERS	OR
2024-05-07	458-327	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	KLAMATHFLS	OR
2024-04-30	458-326	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	EUGENE	OR
2024-04-29	458-325	0–9 XXXall 10 · 3 holders which blocks →	CALLWORKS CORPORATION	475J	EUGENE	OR
2024-04-26	458-324	0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - OR	750E	GOLD BEACH	OR
2024-04-10	458-323	0XXX1XXX2XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LEABURG	OR
2024-03-28	458-322	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ALBANY	OR
2024-03-21	458-321	0XXX1XXX which blocks →	ONVOY, LLC - OR	750E	PHOENIX	OR
2024-03-15	458-320	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - OR	750E	EUGENE	OR
2024-03-07	458-319	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	JUNCTIONCY	OR
2024-02-15	458-318	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	HERMISTON	OR
2024-02-09	458-317	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	EUGENE	OR
2023-12-27	458-316	0XXX9XXX · 2 holders which blocks →	FIVE9, INC.	598J	PENDLETON	OR
2023-12-12	458-315	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	PRINEVILLE	OR
2023-10-24	458-314	0XXX1XXX2XXX4XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	OAKLAND	OR
2023-09-21	458-309	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - OR	750E	ALBANY	OR
2023-09-21	458-310	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OR	750E	ROSEBURG	OR

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.