Dear Mr Marco d'Itri, Version of whois: whois --version Version 4.6.13.
Report bugs to <[EMAIL PROTECTED]> (Cygwin version, but I'd guess this is not Cygwin specific.) Problem: Sometimes the real info is a level deeper as returned by whois (when there are multiple net ranges an IP-address is included in): When I run e.g.: whois -H 204.127.166.135 AT&T WorldNet Services ATTPLS (NET-204-127-0-0-1) 204.127.0.0 - 204.127.255.255 AT&T Consumer IP Services ATTSVC-204-127-128-0 (NET-204-127-128-0-1) 204.127.128.0 - 204.127.191.255 # ARIN WHOIS database, last updated 2005-07-14 19:10 # Enter ? for additional hints on searching ARIN's WHOIS database. Desired situation: I would instead like to see the results under NET-204-127-0-0-1 and NET-204-127-128-0-1 (cmp <http://ws.arin.net/whois/?queryinput=204.127.166.135> versus <http://ws.arin.net/whois/?queryinput=!%20NET-204-127-0-0-1> and <http://ws.arin.net/whois/?queryinput=!%20NET-204-127-128-0-1> ) Thanks and sample whois use in context: I would also like to take the opportunity to thank you for this utility. I find it generally much more convenient than accessing whois-servers via webpages (e.g. to get info to direct spam complaints). It not only allows one to find information on providers and upstream providers of (advertised) websites (upstream: in combination with: tracert www.att.net cmp <http://spam-filter-review.toptenreviews.com/reporting-spam.html> nslookup www.att.net tracert 204.127.135.135 nslookup -q=ptr 204.127.166.135 <http://www.att.net/> <http://204.127.166.135/> <http://204.127.135.135/> ) but also on registrars. (Typical use example: whois -H att.net cmp <http://www.icann.org/registrars/accredited-list.html> <http://www.spamhaus.org/faq/answers.lasso?section=Generic%20Questions#127> Note that registrant info will likely be unreliable in case of spamming. ) This nicely complements: <http://spamcop.net/> and <http://banspam.javawoman.com/report3.html> (Btw this is not to imply that AT&T is spamming; att.net just turned up as upstream provider of a spam advertised website and seemed a good example.) Best regards, Arend-Jan Westhoff -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/