>>> from numberplate import is_upper_consonant

>>> is_upper_consonant('B')
True
>>> is_upper_consonant('H')
True
>>> is_upper_consonant('A')
False
>>> is_upper_consonant('b')
False
>>> is_upper_consonant('Z')
True
>>> is_upper_consonant('M')
True
>>> is_upper_consonant('*')
False
>>> is_upper_consonant('x')
False