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 440
ONVOY, LLC - OH 36
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
2025-12-29 440-900 0XXX1XXX9XXX · 2 holders which blocks → ONVOY, LLC - OH 464C AMHERST OH
2024-08-16 440-440 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C HILLCREST OH
2022-12-08 440-894 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C ELYRIA OH
2022-05-09 440-849 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C LORAIN OH
2022-02-01 440-819 0XXX1XXX2XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C OLMSTEDFLS OH
2021-12-15 440-692 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C VICTORY OH
2021-07-22 440-807 0XXX1XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLC - OH 464C NEW LYME OH
2021-07-02 440-795 0XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C KINGSVILLE OH
2021-06-22 440-698 0XXX3XXX5XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C NEWBURY OH
2021-06-22 440-738 0XXX1XXX2XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C VERMILION OH
2021-06-21 440-726 0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → ONVOY, LLC - OH 464C THOMPSON OH
2021-03-30 440-690 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C ELYRIA OH
2021-03-26 440-880 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C AUSTINBURG OH
2021-02-03 440-766 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C LORAIN OH
2020-05-28 440-659 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C PERRY OH
2020-05-28 440-664 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → ONVOY, LLC - OH 464C KIRTLAND OH
2020-05-28 440-750 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C PARKMAN OH
2019-06-12 440-598 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C BIRMINGHAM OH
2017-07-05 440-640 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C TRINITY OH
2016-10-28 440-870 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - OH 464C STRONGSVL OH
2016-07-12 440-901 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C CHARDON OH
2016-05-09 440-671 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C BRECKSVL OH
2016-03-01 440-496 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C OLMSTEDFLS OH
2016-03-01 440-970 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C BURTON OH
2016-02-16 440-493 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C VICTORY OH
2016-02-12 440-771 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C HILLCREST OH
2016-02-01 440-797 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - OH 464C BEDFORD OH
2015-03-25 440-999 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C CHAGRINFLS OH
— 440-379 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → ONVOY, LLC - OH 464C KIRTLAND OH
— 440-425 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - OH 464C BURTON OH
— 440-448 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - OH 464C GATESMILLS OH
— 440-491 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C GENEVA OH
— 440-616 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C LORAIN OH
— 440-760 0XXX1XXX2XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → ONVOY, LLC - OH 464C LEROY OH
— 440-762 0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLC - OH 464C LEROY OH
— 440-794 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - OH 464C NOROYALTON OH

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.