WHOWAS

The WHOWAS command is used to query information about previously used nicknames.

Previous Nickname Information Query
Usage: WHOWAS <nick>[,<nick>...] [<count> [<server>]]
<nick> One or more nicknames, separated by commas, to query information for.
<count> (Optional) The maximum number of results to return.
<server> (Optional) The server to query. If omitted, the current server is used.

This command retrieves information about previously used nicknames. Multiple nicknames can be provided, separated by commas. The count parameter limits the number of results returned. If a server is specified, the query is directed to that server.

(See sections 4.5.3 of RFC 1459, 3.6.3 of RFC 2812)