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 |
|---|---|---|---|---|---|---|
| 2022-02-28 | 986-582 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ST ANTHONY | ID |
| 2022-02-28 | 986-874 | 2XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SOUTH MT | ID |
| 2022-02-18 | 986-243 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RAFT RIVER | ID |
| 2022-02-18 | 986-346 | 0XXX1XXX4XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PAUL | ID |
| 2022-02-18 | 986-382 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PARIS | ID |
| 2022-02-18 | 986-466 | 4XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PRAIRIE | ID |
| 2022-02-18 | 986-526 | 4XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SHOUP | ID |
| 2022-02-14 | 986-646 | 4XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | OAKLEY | ID |
| 2022-02-10 | 986-366 | 4XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NORLAND | ID |
| 2022-02-07 | 986-542 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MONTEVIEW | ID |
| 2022-02-03 | 986-742 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MINIDOKA | ID |
| 2022-02-01 | 986-334 | 2XXX4XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MAY | ID |
| 2022-01-27 | 986-782 | 6XXX7XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MACKAY | ID |
| 2022-01-25 | 986-482 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LOWMAN | ID |
| 2022-01-13 | 986-242 | 0XXX1XXX2XXX4XXX6XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ABERDEEN | ID |
| 2022-01-13 | 986-326 | 4XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | KILGORE | ID |
| 2022-01-13 | 986-342 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HOLLISTER | ID |
| 2022-01-13 | 986-426 | 4XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ISLANDPARK | ID |
| 2022-01-13 | 986-546 | 4XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HOLBROOK | ID |
| 2022-01-13 | 986-636 | 1XXX3XXX4XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | KOOSKIA | ID |
| 2022-01-13 | 986-642 | 0XXX1XXX2XXX6XXX8XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CAREY | ID |
| 2022-01-13 | 986-746 | 4XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | INDIAN VLY | ID |
| 2022-01-13 | 986-926 | 4XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ASHTON | ID |
| 2022-01-13 | 986-982 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CLAYTON | ID |
| 2022-01-05 | 986-942 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PAYETTE | ID |
| 2021-02-08 | 986-837 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BOISE | ID |
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.