Here's a list of various IP look-up sites...some you may know and some you may not...

http://www.softpanorama.org/DNS/secu...html#Tutorials
DNS Security Links

http://www.yellowpipe.com/yis/tools/util/
Yellowpipe - Network Utilities : Dig Domain Information Groper, DNS lookup, Whois

http://www.spacereg.com/a.rpl?m=dig
Domain Information Groper gateway

http://www.senderbase.org/?searchBy=...82.230.214.207
SenderBase - 82.230.214.207

http://www.warewolflabs.com/portfoli...g/wlanskg.html
WLAN Strong Key Generator version 2.2 by Warewolf Labs ( formerly WEP Strong Key Generator )

https://www.grc.com/x/ne.dll?bh0bkyd2
Shields UP! — Internet Vulnerability Profiling

http://www.linklogger.com/TCP5000.htm
TCP Port 5000

http://server1.belchfire.net/webdig/webdig.cgi
webDig - Domain information groper

http://www.arin.net/whois/index.html
ARIN: WHOIS Database Search

http://www.dnsstuff.com/
DNS Stuff: DNS tools, WHOIS, tracert, ping, and other network tools.

http://www.warewolflabs.com/portfoli...kg/wepskg.html
WEP Strong Key Generator version 2.1 by Warewolf Labs and Kraix.com

A search of IP and IP Addresses wasn't much help so I posted here.