Dear Martin There is a RIPE Database Queries Reference Chart that shows you all the inverse searchable attributes. You will find this and other very useful documentation on many aspects of the RIPE Database here: http://www.ripe.net/data-tools/support/documentation regards Denis Walker Business Analyst RIPE NCC Database Group On 6/12/11:50 11:10 AM, Martin T wrote:

Hi,

which attributes inRIPE database are inverse searchable? I know one can use "origin"(for example "whois -Brh whois.ripe.net -i origin AS3249") and "person", but are there other practically usable attributes, which support inverse search?

regards, martin