Help for ACCESS:
ACCESS maintains a list of user@host masks from where
NickServ will recognize you, so it will not prompt you to
change nick. Preventing expiry, getting channel access
or editing nickname settings still requires
identification, however.
Access list entries can use hostnames with optional
wildcards, IP addresses and CIDR masks. There are
restrictions on how much you can wildcard. If you omit
the mask, NickServ will attempt to generate one matching
your current connection.
Syntax: ACCESS LIST
Syntax: ACCESS ADD [mask]
Syntax: ACCESS DEL <mask>
Examples:
/msg NickServ ACCESS LIST
/msg NickServ ACCESS ADD jack@host.example.com
/msg NickServ ACCESS ADD user@10.0.0.8
/msg NickServ ACCESS ADD jilles@192.168.1.0/24
/msg NickServ ACCESS DEL *someone@*.area.old.example.net