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 |
|---|---|---|---|---|---|---|
| 2022-02-16 | 774-622 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HOLDEN | MA |
| 2022-02-09 | 774-686 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MILFORD | MA |
| 2022-02-07 | 774-632 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | TAUNTON | MA |
| 2022-02-07 | 774-635 | 0XXX1XXX3XXX5XXX8XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SOUTHBDG | MA |
| 2022-02-04 | 774-687 | 3XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | OXFORD | MA |
| 2022-02-04 | 774-746 | 0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | OSTERVILLE | MA |
| 2022-02-03 | 774-684 | 0XXX2XXX3XXX6XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ORLEANS | MA |
| 2022-02-02 | 774-832 | 0XXX1XXX4XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MEDWAY | MA |
| 2022-02-01 | 774-748 | 6XXX7XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MEDFIELD | MA |
| 2022-01-31 | 774-663 | 0XXX2XXX3XXX7XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CARVER | MA |
| 2022-01-31 | 774-822 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HYANNIS | MA |
| 2022-01-28 | 774-637 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SHREWSBURY | MA |
| 2022-01-28 | 774-683 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BRIDGEWTR | MA |
| 2021-09-30 | 774-828 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WORCESTER | MA |
| 2021-05-14 | 774-623 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BARNSTABLE | MA |
| 2021-03-08 | 774-636 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ROCHESTER | MA |
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.