NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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 |
|---|---|---|---|---|---|---|
| — | 208-325 | 0XXX2XXX5XXX6XXX7XXX · 3 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | DONNELLY | ID |
| — | 208-328 | 1XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | SPRINGFLD | ID |
| — | 208-337 | 1XXX7XXX · 2 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | HOMEDALE | ID |
| — | 208-347 | 1XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | NEWMEADOWS | ID |
| — | 208-382 | 8XXX which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | CASCADE | ID |
| — | 208-397 | none assigned yet which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | ABERDEEN | ID |
| — | 208-462 | 0XXX7XXX · 2 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | GARDEN VLY | ID |
| — | 208-482 | 1XXX2XXX3XXX5XXX8XXX · 2 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | WILDER | ID |
| — | 208-584 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | SWEET | ID |
| — | 208-628 | 1XXX5XXX6XXX7XXX · 2 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | RIGGINS | ID |
| — | 208-630 | 1XXX6XXX · 2 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | MCCALL | ID |
| — | 208-634 | not yet reported which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | MCCALL | ID |
| — | 208-722 | 0XXX1XXX2XXX3XXX4XXX · 5 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | PARMA | ID |
| — | 208-764 | 1XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | FAIRFIELD | ID |
| — | 208-793 | 0XXX1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | HORSEHBEND | ID |
| — | 208-823 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | CAREY | ID |
| — | 208-839 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | WHITE BIRD | ID |
| — | 208-842 | 1XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | ELK CITY | ID |
| — | 208-896 | 1XXX2XXX3XXX8XXX · 3 holders which blocks → | ZIPLY FIBER IDAHO, LLC DBA ZIPLY FIBER | 4427 | MARSING | ID |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.