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 |
|---|---|---|---|---|---|---|
| 2022-02-25 | 582-452 | 0XXX1XXX5XXX6XXX8XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WINBURNE | PA |
| 2022-02-24 | 582-642 | 0XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WEEDVILLE | PA |
| 2022-02-18 | 582-622 | 0XXX1XXX2XXX6XXX8XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SNOW SHOE | PA |
| 2022-02-17 | 582-546 | 0XXX4XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SIGEL | PA |
| 2022-02-07 | 582-453 | 0XXX1XXX3XXX4XXX7XXX8XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MAHAFFEY | PA |
| 2022-01-18 | 582-426 | 0XXX4XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LUDLOW | PA |
| 2022-01-11 | 582-837 | 0XXX1XXX4XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | KERSEY | PA |
| 2022-01-10 | 582-422 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CRESSON | PA |
| 2022-01-10 | 582-433 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BRADFORD | PA |
| 2022-01-10 | 582-436 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SOMERSET | PA |
| 2021-09-08 | 582-262 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | KNOXVILLE | PA |
| 2021-06-03 | 582-682 | 2XXX5XXX7XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BERLIN | PA |
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.