Aviation User Protocol Coded with the Aircraft Nationality and Registration Marking (bits 40 to 81)

The aircraft nationality and registration marking is a unique alphanumeric code assigned by national administrations in accordance with Annex 10 to the Convention on International Civil Aviation.

This information is translated into digital format (1s and 0s) using the modified-baudot code provided below. The data shall be right justified, and the modified-baudot space ("100100") should be used (placed to the left of the characters) where no characters exist.