Prefix overview
Phone numbers in prefix 508-403
This page covers the 508-403 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
508-403
RATE CENTER
CATAUMET
CARRIER
LEVEL 3 COMMUNICATIONS, LLC - MA
MA
Prefix range
The prefix 508-403 includes numbers from 5084030000 to 5084039999.
This range is associated with the CATAUMET rate center and was originally assigned to LEVEL 3 COMMUNICATIONS, LLC - MA.
Numbers in this prefix
20 numbers