Prefix overview
Phone numbers in prefix 857-491
This page covers the 857-491 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
857-491
RATE CENTER
BOSTON
CARRIER
LIGHTPATH OF NEW ENGLAND
MA
Prefix range
The prefix 857-491 includes numbers from 8574910000 to 8574919999.
This range is associated with the BOSTON rate center and was originally assigned to LIGHTPATH OF NEW ENGLAND.
Numbers in this prefix
20 numbers