NumberResearch Membership · Data 09/20/2026

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 404
ONVOY, LLC - GA 23
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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2023-11-06 404-678 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-11-06 404-912 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-07-18 404-779 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-05-22 404-470 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2022-12-02 404-726 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2022-04-29 404-868 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2021-10-13 404-595 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2020-01-13 404-738 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2020-01-13 404-882 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-11-20 404-737 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-11-07 404-383 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-07-12 404-777 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-07-12 404-999 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2015-05-11 404-476 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2013-02-04 404-900 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2012-10-08 404-500 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2010-08-06 404-973 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2006-11-21 404-462 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
— 404-207 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
— 404-537 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
— 404-665 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
— 404-800 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
— 404-835 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA

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.