Why do you ask?

I'm curious since Adagio's alphanumeric, 6 character codes support 2,116,316,160 unique entries using digits and uppercase only characters, and can impart more meaningful information than just a number alone.

If you are hoping to use the vendor's telephone number as their vendor code (a frequent reason cited for 7 digits), you can look up a vendor by their phone number by pressing F5.