Prefix overview
Phone numbers in prefix 617-400
This page covers the 617-400 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
617-400
RATE CENTER
ROXBURY
CARRIER
NORFOLK COUNTY INTERNET, INC.
MA
Prefix range
The prefix 617-400 includes numbers from 6174000000 to 6174009999.
This range is associated with the ROXBURY rate center and was originally assigned to NORFOLK COUNTY INTERNET, INC..
Numbers in this prefix
20 numbers