"Maurice Givens" wrote in message om...
It is very related. The 5N is a prefixes given to Nigeria for radio
call signs. Aircraft registrations are issued as radio callsigns.

As far as Canada is concerned, C is also a valid call sign prefix.
The Canadiens just have not used it for amateur radio. For example,
the U.S. has A, N, W, and K.

The US only has AA-AL, by the way.