Prefix overview
Phone numbers in prefix 857-544
This page covers the 857-544 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
857-544
RATE CENTER
ROXBURY
CARRIER
OMNIPOINT MIAMI E LICENSE, LLC
MA
Prefix range
The prefix 857-544 includes numbers from 8575440000 to 8575449999.
This range is associated with the ROXBURY rate center and was originally assigned to OMNIPOINT MIAMI E LICENSE, LLC.
Numbers in this prefix
20 numbers