NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 380
ONVOY, LLC - OH 42
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
2026-08-20 380-302 0XXX9XXX · 2 holders which blocks → ONVOY, LLC - OH 464C REYNOLDSBG OH
2026-04-08 380-297 0XXX1XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - OH 464C DUBLIN OH
2026-01-27 380-296 0XXX1XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - OH 464C NEW ALBANY OH
2026-01-13 380-295 0XXX which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2025-11-24 380-293 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C GAHANNA OH
2025-11-04 380-292 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - OH 464C GROVE CITY OH
2025-10-15 380-291 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2025-09-25 380-290 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C REYNOLDSBG OH
2025-08-13 380-289 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C REYNOLDSBG OH
2025-04-15 380-288 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C WESTERVL OH
2025-01-09 380-286 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2024-03-21 380-275 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C LOCKBOURNE OH
2024-02-12 380-270 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C GROVE CITY OH
2024-02-12 380-271 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C WORTHINGTN OH
2023-09-28 380-266 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2023-09-01 380-264 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C REYNOLDSBG OH
2023-08-18 380-262 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C HILLIARD OH
2023-08-18 380-263 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C CANALWHSTR OH
2023-06-22 380-268 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2022-12-06 380-383 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2022-11-02 380-324 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C GAHANNA OH
2022-05-04 380-246 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C WESTERVL OH
2022-05-04 380-248 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C REYNOLDSBG OH
2021-12-29 380-242 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2021-09-03 380-236 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C PLAIN CITY OH
2021-07-28 380-229 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C NEW ALBANY OH
2021-06-28 380-232 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C DUBLIN OH
2021-02-03 380-388 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C ALTON OH
2021-02-03 380-500 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C WORTHINGTN OH
2021-02-03 380-979 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C GROVE CITY OH
2021-01-06 380-280 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C GROVEPORT OH
2020-10-23 380-220 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C WESTERVL OH
2020-10-23 380-221 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - OH 464C WJEFFERSON OH
2020-05-28 380-214 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C DUBLIN OH
2019-08-21 380-207 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C REYNOLDSBG OH
2017-10-31 380-888 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C ALTON OH
2017-09-29 380-333 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C GROVEPORT OH
2017-09-29 380-444 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2017-09-29 380-666 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C GROVE CITY OH
2017-09-29 380-777 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C GAHANNA OH
2017-02-16 380-222 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2017-02-16 380-999 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C GAHANNA OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.