Output barcode screenshot (Royal Mail symbology) Royal Mail barcode (Also known as RMS4CC, RoyalMail4SCC, Royal Mail 4-State, British Royal Mail 4-State Customer Code, 4-State). This symbology was created for automated mail sorting. It normally codes the postcode and the house or mailbox number in a machine readable format. The contents of the code may vary in different countries. This symbology encodes alpha-numeric characters (0-9, A-Z). Important: you can also use BarCode Windows Forms or Web [...]