Prefix overview
Phone numbers in prefix 857-253
This page covers the 857-253 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
857-253
RATE CENTER
CAMBRIDGE
CARRIER
PAETEC ITEL, LLC
MA
Prefix range
The prefix 857-253 includes numbers from 8572530000 to 8572539999.
This range is associated with the CAMBRIDGE rate center and was originally assigned to PAETEC ITEL, LLC.
Numbers in this prefix
20 numbers