New Team Cymru IP2ASN whois server

[Stephen Gill]

Fellow networkers,
 
Team Cymru is happy to announce the availability of a public whois
server dedicated to mapping IP numbers to ASNs, located at
whois.cymru.com.  You can find the link to this tool at:
 
http://www.cymru.com/BGP/whois.html
 
This link has been added to our main BGP data page available at:
 
http://www.cymru.com/BGP/index.html
 
We have also extended the functionality of this daemon to support BULK
IP submissions for those who wish to further optimize their queries with
netcat.
 
Following is a quick overview of how to use it:
 
$ whois -h whois.cymru.com <IP>
 
Where <IP> is replaced by the IP you'd like to map, like so:
 
$ whois -h whois.cymru.com 4.2.2.1
    ASN |               IP | Name
   3356 |          4.2.2.1 | LEVEL3 Level 3 Communications
 
You can also include port information, and/or timestamps in your
queries.  Be sure to include quotes around your queries, or the daemon
will interpret your request as multiple lines:
 
$ whois -h whois.cymru.com "4.2.2.1 -0600 GMT"
    ASN |               IP |            Info | Name
   3356 |          4.2.2.1 |       -0600 GMT | LEVEL3 Level 3
Communications
 
For instructions on how to submit BULK queries via netcat, simply issue
the following command:
 
$ whois -h whois.cymru.com help
 
We hope you find this tool useful.  Stay tuned for more features! 
 
If you have any comments or suggestions as to how we might improve this
service, feel free to let us know!
 
Thanks,
Steve, for Team Cymru
http://www.cymru.com
--
Stephen Gill

[Pekka Savola]

Post by Stephen Gill
$ whois -h whois.cymru.com 4.2.2.1
    ASN |               IP | Name
   3356 |          4.2.2.1 | LEVEL3 Level 3 Communications

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.

[Jeroen Massar]

-----BEGIN PGP SIGNED MESSAGE-----

Post by Pekka Savola

Post by Stephen Gill
$ whois -h whois.cymru.com 4.2.2.1
ASN | IP | Name
3356 | 4.2.2.1 | LEVEL3 Level 3 Communications

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.

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

[Stephen Gill]

Hi Pekka,

Yep, we'd like to. Stay tuned!

Cheers,
Steve, for Team Cymru
--
Stephen Gill

-----Original Message-----
From: Pekka Savola [mailto:***@netcore.fi]
Sent: Friday, September 26, 2003 3:30 AM
To: Stephen Gill
Cc: 'NANOG'
Subject: Re: New Team Cymru IP2ASN whois server

Post by Stephen Gill
$ whois -h whois.cymru.com 4.2.2.1
    ASN |               IP | Name
   3356 |          4.2.2.1 | LEVEL3 Level 3 Communications

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.