This command checks if users own the nicknames they are currently using. After using the acc command, services will reply with the user's access level.
The possible values are:
2 User has identified and owns the nick.
1 User matches the nick's access masks.
0 User does not own the nick or is not online
/msg nickserv acc JoelKatz Use the acc command to verify that someone is the rightful owner of a nick in use. Access level one does not mean that they do not own the nick, but it doesn't give you enough information to conclude that they do either. If you normally get opped or voiced in a room and services are not doing so, you should check your acc. Identifying will usually fix the problem.