The common RAW numerics can be found
here.You can also find additional numerics that have been reported on
here. Please note that this information is posted by regular users and, likely, has not been confirmed.
As you have noted, some networks return extra numerics on a command, but whether there are extra returned or not, the common numerics are returned no matter what network you are on.
If you wish, you are more than welcome to review and use information from my
Whois Dialog snippet.
