Prefix overview
Phone numbers in prefix 605-420
This page covers the 605-420 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
605-420
RATE CENTER
ROSLYN
CARRIER
MIDCONTINENT COMMUNICATIONS. - SD
SD
Prefix range
The prefix 605-420 includes numbers from 6054200000 to 6054209999.
This range is associated with the ROSLYN rate center and was originally assigned to MIDCONTINENT COMMUNICATIONS. - SD.
Numbers in this prefix
20 numbers