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 |
|---|---|---|---|---|---|---|
| 2022-03-10 | 854-773 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HILTONHEAD | SC |
| 2022-02-22 | 854-269 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SUMMERVL | SC |
| 2022-02-09 | 854-846 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BEAUFORT | SC |
| 2022-02-04 | 854-683 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BLUFFTON | SC |
| 2022-02-04 | 854-687 | 0XXX1XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RIDGELAND | SC |
| 2022-01-31 | 854-746 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NEWTONVL | SC |
| 2022-01-27 | 854-832 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MONCKS COR | SC |
| 2022-01-13 | 854-263 | 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ST STEPHEN | SC |
| 2022-01-13 | 854-663 | 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PINEVILLE | SC |
| 2022-01-07 | 854-768 | 0XXX1XXX3XXX6XXX7XXX8XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | EDISTO IS | SC |
| 2021-04-07 | 854-837 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MTPLEASANT | SC |
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.