SWIFT ISO 15022 - Code BYSTAREA Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Statement by Status/Reason and/or by Financial Instrument Usages Message type Field number Tag MT549 (Request for Statement/Status Advice) 15 16R (Start of Block) MT549 (Request for Statement/Status Advice) 19 16S (End of Block)