Call the U.S. Railroad Retirement Board (RRB) at 877-772-5772 to use our automated services or speak to a representative. Press 1 to use the automated self-service menu or press 2 to hear recorded RRB information 24 hours a day, including weekends and holidays. Press 3 to speak with a debt recovery specialist for non-Medicare related debt repayment options or press 4 to speak with a representative between 9:00 a.m. to 3:00 p.m. weekdays, except federal holidays.