Maxicode
MaxiCode represents data by drawing hexagonal items, which are arranged around a circular center (a so called "Bull's Eye"). Different encoding modes for including postal information (SCM) can be adjusted: UPS Modes are Mode 2 (US Carrier) and Mode 3 (International Carrier).
Valid characters: Alphanumeric (ASCII 0.. 255) and/or bytes
Barcodes list.