The OWNER mode indicates that the user is an owner of a channel. Only a channel owner can give OWNER mode to another member of that channel, but any owner may remove OWNER mode from themselves.

Clients in IRCX mode see owner nicknames with a '.' prefix and continue to see hosts with a '@' prefix (in results from NAMES, WHO, WHOIS and other commands which list nicknames).

Note that HOST mode uses +o, which was "operator" mode in RFC1459. Syntax for these modes is the same as "operator" mode:

MODE <channel> { + | - }q <nick>

	Editor's Note
	This is not a "user mode", such as +i (invisible) or +z (gag). This is a channel user level flag, like +o (operator/host) or +v (voice). The IRCX draft does not make this clear.