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 |
|---|---|---|---|---|---|---|
| — | 508-218 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | NATICK | MA |
| — | 508-268 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | MILFORD | MA |
| — | 508-352 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | WORCESTER | MA |
| — | 508-412 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | WESTBORO | MA |
| — | 508-442 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | PLYMOUTH | MA |
| — | 508-447 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | FOXBORO | MA |
| — | 508-547 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | FALL RIVER | MA |
| — | 508-582 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | HYANNIS | MA |
| — | 508-585 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | BRIDGEWTR | MA |
| — | 508-666 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | ORLEANS | MA |
| — | 508-670 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | EDGARTOWN | MA |
| — | 508-716 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | NANTUCKET | MA |
| — | 508-741 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | BROCKTON | MA |
| — | 508-750 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | PROVINCETN | MA |
| — | 508-773 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | FRANKLIN | MA |
| — | 508-777 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | OSTERVILLE | MA |
| — | 508-805 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | ATTLEBORO | MA |
| — | 508-874 | not yet reported which blocks → | NORFOLK COUNTY INTERNET, INC. | 6083 | STURBRIDGE | 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.