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 765
TON80 COMMUNICATIONS, 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
2022-03-01 765-972 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J FRANKFORT IN
2022-02-24 765-996 0XXX6XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AMBOY IN
2022-01-19 765-784 0XXX2XXX3XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J W LEBANON IN
2022-01-19 765-843 0XXX1XXX2XXX3XXX6XXX7XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WAYNETOWN IN
2022-01-19 765-974 2XXX4XXX7XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WALDRON IN
2022-01-13 765-783 1XXX2XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LINDEN IN
2022-01-13 765-824 0XXX2XXX7XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J UPLAND IN
2022-01-13 765-834 0XXX1XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J KIRKLIN IN
2022-01-13 765-872 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MELLOTT IN
2022-01-13 765-873 4XXX7XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MICHIGANTN IN
2022-01-13 765-875 0XXX2XXX3XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J STEWART IN
2022-01-13 765-927 1XXX8XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J VEEDERSBG IN
2022-01-11 765-846 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PERU IN
2022-01-07 765-837 0XXX1XXX4XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J DELPHI IN
2022-01-07 765-926 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J KOKOMO IN

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.