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 326
FRACTEL, LLC 30
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
2021-06-15 326-688 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H BEAVERCREK OH
2021-06-15 326-699 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H BROOKVILLE OH
2021-06-15 326-732 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H ABERDEEN OH
2021-06-15 326-758 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H JAMESTOWN OH
2021-06-15 326-786 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H DONNELSVL OH
2021-06-15 326-799 0XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H W LIBERTY OH
2021-06-15 326-842 2XXX3XXX5XXX6XXX · 4 holders which blocks → FRACTEL, LLC 965H CATAWBA OH
2021-06-15 326-899 0XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H WOODSTOCK OH
2021-06-15 326-946 0XXX1XXX3XXX4XXX6XXX · 5 holders which blocks → FRACTEL, LLC 965H PITCHIN OH
2021-06-09 326-336 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H VANDALIA OH
2021-06-09 326-348 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H SARDINIA OH
2021-06-09 326-667 0XXX1XXX7XXX8XXX · 4 holders which blocks → FRACTEL, LLC 965H FT LORAMIE OH
2021-04-19 326-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CENTERVLLE OH
2020-09-08 326-356 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BELFAST OH
2020-07-28 326-234 0XXX1XXX5XXX · 3 holders which blocks → FRACTEL, LLC 965H BYHALIA OH
2020-07-28 326-345 0XXX1XXX2XXX5XXX6XXX · 5 holders which blocks → FRACTEL, LLC 965H DE GRAFF OH
2020-07-28 326-465 0XXX1XXX2XXX4XXX8XXX · 4 holders which blocks → FRACTEL, LLC 965H RIDGEWAY OH
2020-07-02 326-500 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H SUGRTRERDG OH
2020-06-15 326-300 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → FRACTEL, LLC 965H PEEBLES OH
2020-06-15 326-400 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 4 holders which blocks → FRACTEL, LLC 965H HAMERSVL OH
2020-06-15 326-800 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H BELLBROOK OH
2020-06-15 326-900 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H YLSPGCLFTN OH
2020-02-07 326-200 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H MANCHESTER OH
2020-02-07 326-222 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ABERDEEN OH
2020-02-07 326-333 0XXX3XXX7XXX · 3 holders which blocks → FRACTEL, LLC 965H CAMDEN OH
2020-02-07 326-444 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → FRACTEL, LLC 965H ENON OH
2020-02-07 326-600 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H MARSHALL OH
2020-02-07 326-666 0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H TREMONT CY OH
2020-02-07 326-777 0XXX2XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H GEORGETOWN OH
2020-02-07 326-999 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H WESTMILTON 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.