[PLUG] IP address block questions

[Randal L. Schwartz]

>>>>> "Rich" == Rich Shepard <rshepard at appl-ecosys.com> writes:

Rich>   I found the IANA web site that lists all Class A (CIDR /8) address
Rich> assignments. Is there a site that lists IP address block assignments in more
Rich> detail?

I use a query to arin.net

    $ whois -h whois.arin.net 66.100.167.145
    SAVVIS Communications Corporation (NETBLK-SAVV)	SAVV
                                                       66.100.0.0 - 66.101.255.255
    Sprocket Data (NETBLK-SAVV-T31436) SAVV-T31436	 66.100.167.0 - 66.100.167.255

    To single out one record, look it up with "!xxx", where xxx is the
    handle, shown in parenthesis following the name, which comes first.

    The ARIN Registration Services Host contains ONLY Internet
    Network Information: Networks, ASN's, and related POC's.
    Please use the whois server at rs.internic.net for DOMAIN related
    Information and whois.nic.mil for NIPRNET Information.

I imagine you can automate this with the proper Perl script. :)

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn at stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
Perl/Unix/security consulting, Technical writing, Comedy, etc. etc.
See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training!