The real name is “3 of 9 bar code.” It is probably the most commonly used bar code as it encodes not only digits, but also upper-case letters and punctuation. Spaces are encoded as bars. Text is encoded between start and stop characters “ * ” which are automatically generated by BarDIMM Pro and BarDIMM Box.
BarDIMM Pro and BarDIMM Box feature two flavors of 39 barcode call: with and without starting blanks. IDs 24670 and 24671 do not encode the space characters starting and ending the data to barcode. IDs 24672 and 24673 do encode the starting spaces.