What does X21 stand for?

This page is dedicated to explaining the various possible meanings of acronym, abbreviation, shorthand or slang term : X21 .

Ever wondered what are all the different meanings of the word X21 Or any of the other 1,050,000 slang words, abbreviations and acronyms listed here at Slang? Your resource for web acronyms, web abbreviations and netspeak.

We've found a total of 1 definitions for X21