"Major" primary and secondary references for contact information. When
making updates, you should check all these locations for obsolete or
incorrect information. Actually getting the owner/operator of all of
these to make the changes is left as an exercise for the reader. Yes,
I know I have some obsolete information around, and no I haven't figured
out how to correct it everywhere.
Autonomous System Number
IPv4 Network Number
IPv6 Network Number?
Primary references
whois.arin.net
whois.ripe.net
whois.apnic.net
Secondary references
whois.rsng.net
whois.cw.net
whois.ans.net (still answers)
IN-ADDR.ARPA TXT records for some exchange points
IN-ADDR.ARPA SOA records for some network numbers
Maintainer Record
Primary references
whois.arin.net
whois.ripe.net
whois.rsng.net
whois.cw.net
whois.ans.net (still answers)
Domain Name
Primary references
whois.crsnic.net
many other registries, see SuperWhois tool
Secondary references
lots, see spam
Name Server (Glue record)
Primary references
whois.crsnic.net
many other registries, see SuperWhois tools
Secondary references
rare
Other lists of contacts
Exchange points
http://nap.aads.net/nap.contacts.html
http://www.paix.net/participants/paix-participants.htm
Other lists
http://puck.nether.net/netops/nocs.cgi
