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 308
ONVOY, LLC - NE 19
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
2025-12-22 308-444 0XXX4XXX which blocks → ONVOY, LLC - NE 549E AXTELL NE
2025-11-05 308-374 0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NE 549E NO PLATTE NE
2024-01-05 308-296 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NE 549E KEARNEY NE
2023-08-04 308-291 3XXX which blocks → ONVOY, LLC - NE 549E GERING NE
2023-05-19 308-266 1XXX2XXX5XXX7XXX · 4 holders which blocks → ONVOY, LLC - NE 549E ATLANTA NE
2023-05-19 308-272 1XXX which blocks → ONVOY, LLC - NE 549E GREELEY NE
2021-05-07 308-438 2XXX3XXX8XXX which blocks → ONVOY, LLC - NE 549E AMHERST NE
2021-05-04 308-813 2XXX8XXX which blocks → ONVOY, LLC - NE 549E HEARTWELL NE
2021-05-04 308-831 2XXX3XXX which blocks → ONVOY, LLC - NE 549E NAPONEE NE
2021-05-04 308-843 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NE 549E PLEASANTON NE
2021-03-12 308-354 0XXX1XXX3XXX · 2 holders which blocks → ONVOY, LLC - NE 549E LEWELLEN NE
2021-03-12 308-401 0XXX1XXX3XXX4XXX8XXX · 2 holders which blocks → ONVOY, LLC - NE 549E LYMAN NE
2021-01-08 308-371 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NE 549E KEARNEY NE
2020-12-24 308-310 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NE 549E SCOTSBLUFF NE
2019-11-19 308-303 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NE 549E CAIRO NE
2019-05-30 308-300 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NE 549E NO JULESBG NE
2017-08-31 308-888 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NE 549E NO JULESBG NE
2007-01-12 308-594 0XXX1XXX2XXX3XXX4XXX5XXX · 3 holders which blocks → ONVOY, LLC - NE 549E WOOD RIVER NE
— 308-281 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NE 549E ELWOOD NE

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.