This page about 2 of 5 barcodes has been updated and moved here. The new page has much better information. Please read it instead of this one.
2 of 5 bar code are not the same as Interleaved 2 of 5 barcodes. 2 of 5 (non-interleaved) barcodes are not as common as Interleaved 2 of 5 barcodes. 2 of 5 are an older symbology also used to encode numeric data. Make sure which one you need.
