NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-02-03 | 864-667 | 0XXX1XXX2XXX3XXX6XXX7XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MOUNTVILLE | SC |
| 2022-01-31 | 864-927 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LAURENS | SC |
| 2022-01-26 | 864-966 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | FOUNTANINN | SC |
| 2022-01-17 | 864-782 | 0XXX1XXX2XXX6XXX7XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WARESHOALS | SC |
| 2022-01-17 | 864-792 | 0XXX7XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LIBERTY | SC |
| 2022-01-13 | 864-783 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | GREER | SC |
| 2022-01-13 | 864-893 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WALHALLA | SC |
| 2021-03-12 | 864-768 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SPARTANBG | SC |
| 2021-02-08 | 864-837 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | GREENVILLE | SC |
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.