Above.net - Traceroute

http://www.above.net/cgi-bin/trace

 

All Nettools

http://www.all-nettools.com/

 

APNIC

http://www.apnic.net/

 

COTSE - Elephant's Toolbox

http://www.cotse.com/iptools.html

 

CRSNIC

http://www.crsnic.net/

 

dek's WWW Traceroute Gateway

http://pcisys.net/%7Edek/cgi-bin/traceroute.cgi

 

Domain Dossier

http://www.hexillion.com/utilities/DomainDossier.vbs.asp

 

DNS, WHOIS, NSLOOKUP, HEAD HTTP

http://www.canufly.net/~georgegg/dns/

 

DNSstuff.com

http://www.dnsstuff.com/

 

DSL Reports

http://www.dslreports.com/r3/dsl/main/

 

Geektools

http://www.geektools.com/

 

Hexillion - Free Online Network Utilities

http://hexillion.com/utilities/

 

Intermedia - Sprint NAP Looking Glass

http://nitrous.digex.net/mae/sn-lg.html

 

INTERNIC

http://www.internic.net/

 

IP Address to Hostname

http://cello.cs.uiuc.edu/cgi-bin/slamm/ip2name

 

IP Address to Longitude/Latitude

http://cello.cs.uiuc.edu/cgi-bin/ip2ll

 

IPInfo.info

http://ipinfo.info/

 

NameSpace SuperWHOIS

http://swhois.net/

 

Network-Tools.com

http://network-tools.com/

 

Opus One Traceroute Tool

http://www.opus1.com/www/traceroute.html

 

RIPE NCC

http://www.ripe.net/

 

SamSpade.org

http://www.samspade.org/

 

Security Software

http://www.alw.nih.gov/Security/prog-full.html

 

SLAC - Traceroute Servers for HENP & ESnet

http://www.slac.stanford.edu/comp/net/wan-mon/...

 

SpamCop - Host Tracker

http://spamcop.net/hosttracker.shtml

 

Traceroute.org

http://www.traceroute.org/

 

TraceRT

http://www.tracert.com/

 

UXN Spam Combat

http://combat.uxn.com/