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 276
FRACTEL, LLC 15
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
2020-09-08 276-432 7XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H CLINCHPORT VA
2020-09-08 276-786 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H CLINCHCO VA
2020-09-08 276-866 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H TAZEWELL VA
2020-09-08 276-877 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H POUND VA
2020-09-08 276-899 0XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H POCAHONTAS VA
2020-09-08 276-922 2XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H NICKELSVL VA
2020-09-08 276-933 0XXX3XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H MOUTHWILSN VA
2020-09-08 276-955 0XXX1XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H MARION VA
2020-09-08 276-966 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H HILLSVILLE VA
2020-09-08 276-977 6XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H FT BLACKMR VA
2020-07-13 276-788 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H MARTINSVL VA
2020-06-19 276-465 0XXX1XXX7XXX8XXX9XXX · 2 holders which blocks → FRACTEL, LLC 965H BURKESGRDN VA
2019-03-08 276-333 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CLINTWOOD VA
2019-03-08 276-529 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H DANTE VA
2019-03-08 276-999 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H APPALACHIA VA

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.