# The '#' prefix identifies a RFC1459 global channel.
& The '&' prefix identifies a RFC1459 local channel.
%# The "%#" prefix identifies an extended global channel name (a modified UTF8-encoded UNICODE string).
%& The "%&" prefix identifies an extended local channel name (a modified UTF8-encoded UNICODE string).
on >= IRCX, the %# prefix is the most commonly used channel prefix (often the only option) and is considered to be a standard prefix. This was also the case with a few larger networks (such as MSN Chat), but wasn't an issue there as only opers could access /listx (instead, users were forced to use the website to list channels)
