Prefix overview
Phone numbers in prefix 906-303
This page covers the 906-303 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
906-303
RATE CENTER
CALUMET
CARRIER
RANGE TELECOMMUNICATIONS
MI
Prefix range
The prefix 906-303 includes numbers from 9063030000 to 9063039999.
This range is associated with the CALUMET rate center and was originally assigned to RANGE TELECOMMUNICATIONS.
Numbers in this prefix
20 numbers