Prefix overview
Phone numbers in prefix 208-257
This page covers the 208-257 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
208-257
RATE CENTER
CAMBRIDGE
CARRIER
CAMBRIDGE TELEPHONE COMPANY
ID
Prefix range
The prefix 208-257 includes numbers from 2082570000 to 2082579999.
This range is associated with the CAMBRIDGE rate center and was originally assigned to CAMBRIDGE TELEPHONE COMPANY.
Numbers in this prefix
20 numbers