Us Railroad Retirement Board 205 E 5th Ave Amarillo, TX 79101 Phone : (806) 324-2216 Business Category Administration Of Social Human Resource & Income Maintenance Programs United States Government--railroad Retirement Board Amarillo, TX 79101 Phone : (806) 324-2216 Business Category Government Offices-Federal Nursing & Convalescent Homes Nursing & Personal Care Facilities Government Offices & Public Schools