The Transport and Map Symbols block spans U+1F680–U+1F6FF, 128 codepoints in Plane 1 (Supplementary Multilingual Plane). 118 are assigned in Unicode 16.0; the other 10 are reserved for future characters.
All of its characters have the script value Common: they are shared across writing systems rather than tied to one.
By general category: 118 other symbols (So).
The first 70 arrived in Unicode 6.0 (2010); later additions came in 7.0 (27), 8.0 (1), 9.0 (5), 10.0 (4), 11.0 (1), and 4 later versions.
105 of its characters are emoji, 92 of them shown as colour emoji by default. See emoji.
92 characters are East Asian Wide or Fullwidth and take two columns in terminals.
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.