A solid, flexible font when you need more than numbers and uppercase letters. But for space-constrained or high-volume scanning, consider Code 128 instead.
In the modern era of "Internet of Things" (IoT) and complex serialization, restricting data to uppercase only is often unacceptable. This creates a demand for a solution that retains the simplicity of Code 39 but expands its vocabulary. 3 of 9 extended barcode font
The asterisk itself is never encoded as data. It is a flag character. In Extended mode, the asterisk still works as the start/stop delimiter, even when using full ASCII mapping. A solid, flexible font when you need more