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 |
|---|---|---|---|---|---|---|
| 2022-03-04 | 434-646 | 4XXX7XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WHITMELL | VA |
| 2022-03-02 | 434-687 | 0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PINEYRIVER | VA |
| 2022-02-25 | 434-624 | 0XXX1XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CLARKSVL | VA |
| 2022-02-18 | 434-267 | 7XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | VOLENS | VA |
| 2022-02-18 | 434-746 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CHATHAM | VA |
| 2022-02-17 | 434-626 | 0XXX1XXX6XXX8XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PAMPLIN | VA |
| 2022-02-14 | 434-742 | 0XXX1XXX6XXX8XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LOVINGSTON | VA |
| 2022-02-11 | 434-683 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CLOVER | VA |
| 2022-02-08 | 434-768 | 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BIG ISLAND | VA |
| 2022-02-04 | 434-866 | 2XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SOUTH HILL | VA |
| 2022-02-01 | 434-342 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CHASE CITY | VA |
| 2021-04-12 | 434-934 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ALTAVISTA | VA |
| 2021-03-10 | 434-697 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CROZET | VA |
| 2021-03-02 | 434-635 | 0XXX1XXX3XXX6XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | DRAKESBRCH | 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.