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 |
|---|---|---|---|---|---|---|
| 2020-09-03 | 417-822 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | AURORA | MO |
| 2020-04-30 | 417-688 | 1XXX6XXX8XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | LOWRY CITY | MO |
| 2019-12-19 | 417-433 | 3XXX4XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | WALKER | MO |
| 2019-12-05 | 417-477 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | MOUNTANGRV | MO |
| 2019-12-05 | 417-488 | 4XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | BOLIVAR | MO |
| 2019-12-05 | 417-500 | 0XXX1XXX5XXX7XXX8XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | CABOOL | MO |
| 2019-12-05 | 417-600 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 8 holders which blocks → | FRACTEL, LLC | 965H | WILLARD | MO |
| 2019-12-05 | 417-786 | 2XXX7XXX · 2 holders which blocks → | FRACTEL, LLC | 965H | NIANGUA | MO |
| 2019-12-05 | 417-899 | 0XXX2XXX4XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | BUFFALO | MO |
| 2019-12-05 | 417-946 | 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | MANSFIELD | MO |
| 2019-10-25 | 417-377 | 2XXX7XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | MANES | MO |
| 2019-08-22 | 417-900 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | MARIONVL | MO |
| 2019-08-16 | 417-444 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | SPRINGFLD | MO |
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.