| Mode | Description |
|---|
| a | [nick] Give protected status to a user |
| b | [glob pattern] Ban a particular nick!user@host pattern from joining the channel
Requires channel half-operator status or above |
| C | Disables CTCP to channels |
| c | Blocks messages containing color codes |
| e | [glob pattern] Ban exceptions |
| f | [lines:sec] Prevent notice and message floods |
| G | Blocks censored words |
| g | [word] Censor words on a list defined by channel ops |
| h | [nick] Gives half-op status to the user |
| I | [glob pattern] Invite exceptions |
| i | Invite only |
| J | [secs] Automatic rejoin prevention |
| j | Throttles joins per-user to <i>joins</i> per <i>seconds</i> seconds |
| K | /knock is not allowed |
| k | Sets a key needed to join |
| l | Sets max number of users |
| L | If the amount set by +l has been reached, users will be sent to this channel |
| M | A registered nickname (+r) is required to talk |
| m | Moderated channel. Only +v/o/h users may speak |
| N | No nick name changes permitted |
| n | No messages from outside channels |
| O | Only IRCops may join |
| o | Gives a user channel operator status |
| P | Block all-caps lines. |
| p | Makes channel private. Hides the channel from a user's whois reply. |
| q | Gives channel founder status to a user. |
| Q | Disables /kick on a channel. |
| R | Requires a registered nickname to join |
| r | Registered channel. |
| S | Strips all incoming colors |
| s | Makes channel secret. Hides the channel from a /list. |
| t | Only chanops can set topic |
| T | No NOTICE's allowed in the channel |
| t | Only channel owners can change topic |
| V | /invite is not allowed |
| v | Gives a voice to users. (May speak in +m channels) |
| z | Only clients on a Secure (SSL) Connection may join |
