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 | 567-446 | 0XXX1XXX2XXX6XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NEY | OH |
| 2022-02-07 | 567-462 | 0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CLYDE | OH |
| 2022-02-07 | 567-624 | 0–9 XXXall 10 · 7 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BOWLNGGREN | OH |
| 2022-01-27 | 567-737 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | TIFFIN | OH |
| 2022-01-25 | 567-487 | 0XXX1XXX2XXX7XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | GREEN SPG | OH |
| 2022-01-25 | 567-639 | 4XXX7XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RCFLDCTBRY | OH |
| 2022-01-14 | 567-767 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ANTWERP | OH |
| 2022-01-13 | 567-374 | 7XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PANDORA | OH |
| 2022-01-13 | 567-426 | 0XXX3XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PAYNE | OH |
| 2022-01-13 | 567-466 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | COONEY | OH |
| 2022-01-13 | 567-468 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | YORKSHIRE | OH |
| 2022-01-13 | 567-475 | 0XXX1XXX6XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WHITEHOUSE | OH |
| 2022-01-13 | 567-746 | 0XXX2XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BELLEVUE | OH |
| 2022-01-13 | 567-837 | 0XXX1XXX4XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RAWSON | OH |
| 2021-11-22 | 567-463 | 0–9 XXXall 10 · 8 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ASHLAND | OH |
| 2020-12-14 | 567-887 | 2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | FREMONT | OH |
| — | 567-337 | 0–9 XXXall 10 · 7 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BRYAN | OH |
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.