Potter County Courtmaster 501 S Fillmore St # 1a Amarillo, TX 79101 Phone : (806) 379-2820 Business Category Government Offices-County Legislative Bodies Randall County Of--iv-d Courtmaster 500 S Fillmore St Amarillo, TX 79101 Phone : (806) 379-2820 Business Category Government Offices-County Government Offices & Public Schools