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 419
ONVOY, LLC - OH 50
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
2023-08-01 419-888 0XXX2XXX4XXX8XXX · 3 holders which blocks → ONVOY, LLC - OH 464C GALION OH
2023-07-28 419-856 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - OH 464C WAYNESFLD OH
2023-07-26 419-820 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2023-07-26 419-839 0XXX1XXX2XXX3XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C TIFFIN OH
2023-07-26 419-847 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C SYLVANIA OH
2023-07-26 419-848 0XXX1XXX2XXX3XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C CASTALIA OH
2023-07-26 419-850 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - OH 464C BUTLER OH
2023-07-26 419-854 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - OH 464C LUCAS OH
2023-07-06 419-200 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - OH 464C VANLUE OH
2021-07-08 419-313 0XXX1XXX3XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C WEST UNITY OH
2021-07-08 419-364 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C WAYNESFLD OH
2009-03-02 419-315 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C BOWLNGGREN OH
2008-01-03 419-913 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2002-04-27 419-932 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2002-03-29 419-671 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2002-03-28 419-676 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2002-03-19 419-931 0XXX1XXX2XXX5XXX6XXX · 2 holders which blocks → ONVOY, LLC - OH 464C PERRYSBURG OH
2002-02-11 419-518 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C HICKSVILLE OH
2002-02-05 419-517 6XXX which blocks → ONVOY, LLC - OH 464C SYLVANIA OH
2002-02-05 419-972 1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → ONVOY, LLC - OH 464C CURTICORGN OH
2001-12-06 419-616 4XXX5XXX6XXX8XXX · 2 holders which blocks → ONVOY, LLC - OH 464C HURON OH
— 419-214 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-372 not yet reported which blocks → ONVOY, LLC - OH 464C BOWLNGGREN OH
— 419-502 not yet reported which blocks → ONVOY, LLC - OH 464C SANDUSKY OH
— 419-593 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-710 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-715 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-720 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-724 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-725 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-728 not yet reported which blocks → ONVOY, LLC - OH 464C BOWLNGGREN OH
— 419-730 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-731 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - OH 464C UPSANDUSKY OH
— 419-735 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-754 2XXX5XXX6XXX7XXX8XXX which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-776 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-781 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-791 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-793 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-794 not yet reported which blocks → ONVOY, LLC - OH 464C MAUMEE OH
— 419-818 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-821 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-828 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-831 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-844 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-851 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-858 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-920 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - OH 464C LOUDONVL OH
— 419-930 7XXX8XXX · 2 holders which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-984 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C SANDUSKY 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.