Block: High Surrogates

Range U+D800 - U+DB7F
Official Chart http://www.unicode.org/charts/PDF/UD800.pdf
Wikipedia The Unicode Consortium (UC) and the International Organisation for Standardisation (ISO) collaborate on the Universal Character Set (UCS). The UCS is an international standard to map characters used in natural language, mathematics, music, and other domains to machine readable values. By creating this mapping, the UCS enables computer software vendors to interoperate and transmit UCS encoded text strings from one to another.
https://en.wikipedia.org/wiki/Universal_Character_Set_characters#Surrogates
Characters