15688 Full Form. Full Meaning of 15688 Find long form and abbreviation, slang or definition of 15688. What does 15688 mean? What does 15688 stand for? We are providing world largest and most comprehensive acronyms, names, abbreviations database directory on the Internet. Our data base contains more than 8,00,000 terms abbreviations and acronyms. You can also search unique terms more than 4,00,000 general Comprehensive words.