One problem with this (as I have found recently) is that there are four
***independent*** regional Internet registries. However, the American
(North) and sub-equatorial African registry (ARIN - www.arin.net) does seem
to point you to which registry does contain the information, if they don't,
on a regular basis. This will require more parsing on your behalf.
The four registries are:
APNIC ( http://www.yqcomputer.com/
) - Asia (Pacific).
ARIN ( http://www.yqcomputer.com/
) - North America, (part of) the Caribbean, and
LACNIC ( http://www.yqcomputer.com/
) - Latin America and the Caribbean.
RIPE ( http://www.yqcomputer.com/
) - Europe, the Middle East, Central Asia, and
I don't know if there is a central database (there probably isn't), but some
web-sites do query all of the registries. I knew one that would allow HTTP
GET requests, but it's disappeared from my browser history (?!?!).
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