Prefix overview
Phone numbers in prefix 605-489
This page covers the 605-489 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
605-489
RATE CENTER
CHESTER
CARRIER
INTERSTATE TELECOM COOP, INC. - SD
SD
Prefix range
The prefix 605-489 includes numbers from 6054890000 to 6054899999.
This range is associated with the CHESTER rate center and was originally assigned to INTERSTATE TELECOM COOP, INC. - SD.
Numbers in this prefix
20 numbers