Do you plan to support IPv6 -> ASN mappings as well, at some point?
Another interesting feature related to that would be supporting special
resolution of 6to4 addresses (RFC3056); looking up 2002:0102:0304:: would
give you also the info on IP 1.2.3.4.
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Pekka Savola wrote:
> $ whois -h whois.cymru.com 4.2.2.1
> ASN | IP | Name
> 3356 | 4.2.2.1 | LEVEL3 Level 3 CommunicationsDo you plan to support IPv6 -> ASN mappings as well, at some point?
Another interesting feature related to that would be
supporting special resolution of 6to4 addresses (RFC3056); looking up
2002:0102:0304:: would give you also the info on IP 1.2.3.4.
Indeed _also_, as the source ASN's can differ between the ASN's
used for announcing the IPv4 and the IPv6 prefix.
Fortunatly, except for currently 4 prefixes, there should not
be something more specific than 2002::/16 per RFC3056.
From GRH:
2002:c2b1:d06e::/48 More specific 6to4 prefix (194.177.208.110/32) from AS5408
2002:c8a2::/33 More specific 6to4 prefix (200.162.0.0/17) from AS15180
2002:c8c6:4000::/34 More specific 6to4 prefix (200.198.64.0/18) from AS15180
2002:c8ca:7000::/36 More specific 6to4 prefix (200.202.112.0/20) from AS15180
BTW if somebody has a working contact for AS15180, don't mind to
mention it, as they seem quite unresponsive... Others did respond
and cleansed it up btw 
Greets,
Jeroen