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 |
|---|---|---|---|---|---|---|
| 2022-03-16 | 712-878 | 7XXX8XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | IRETON | IA |
| 2022-03-16 | 712-996 | 0XXX6XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MANSON | IA |
| 2022-03-09 | 712-696 | 0XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | DANBURY | IA |
| 2022-03-07 | 712-599 | 0XXX6XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CORECTINVL | IA |
| 2022-03-07 | 712-969 | 6XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BOYDEN | IA |
| 2022-03-04 | 712-474 | 0XXX4XXX7XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BATTLE CRK | IA |
| 2022-02-28 | 712-932 | 2XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ASHTON | IA |
| 2022-02-24 | 712-926 | 2XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WALNUT | IA |
| 2022-02-21 | 712-462 | 0XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MISSOURVLY | IA |
| 2022-02-18 | 712-633 | 3XXX7XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BEDFORD | IA |
| 2022-02-18 | 712-863 | 4XXX8XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CARSON | IA |
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.