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 320
FRACTEL, LLC 17
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
2020-10-13 320-466 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → FRACTEL, LLC 965H AVON MN
2020-10-13 320-488 4XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H RANDALL MN
2020-10-13 320-499 4XXX9XXX · 2 holders which blocks → FRACTEL, LLC 965H BRANDON MN
2020-10-13 320-644 0XXX2XXX4XXX5XXX · 3 holders which blocks → FRACTEL, LLC 965H MCGRATH MN
2020-10-13 320-799 7XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H WAHKON MN
2020-10-13 320-822 2XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H MILLERVL MN
2020-10-13 320-899 1XXX2XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H PENNOCK MN
2020-10-13 320-933 3XXX9XXX · 2 holders which blocks → FRACTEL, LLC 965H KIMBALL MN
2020-10-13 320-966 1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 2 holders which blocks → FRACTEL, LLC 965H ST MARTIN MN
2020-08-05 320-724 6XXX which blocks → FRACTEL, LLC 965H WATKINS MN
2020-07-14 320-946 0XXX3XXX · 2 holders which blocks → FRACTEL, LLC 965H SACREDHERT MN
2020-06-17 320-777 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H SAUKCENTRE MN
2020-06-17 320-977 0XXX1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H HOLDINGFD MN
2019-12-12 320-666 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H FOLEY MN
2019-12-11 320-465 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → FRACTEL, LLC 965H PINE CITY MN
2019-09-12 320-800 0XXX6XXX7XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H ST CLOUD MN
2019-09-12 320-900 0XXX1XXX2XXX4XXX6XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H CLEARWATER MN

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.