(507) 256
Prefix in CLARKS GRV, Minnesota
Prefix Details
About the (507) 256 Prefix
The (507) 256 prefix is assigned to CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN and serves the CLARKS GRV rate center in Minnesota. Phone numbers with this prefix are in the Central Time Zone and are part of area code 507 which covers Rochester and surrounding areas.