Hi The "members:" of an "as-set" describes a single AS number or another as-set, which again can include other as-sets as members and so on. How can I figure out all AS numbers behind an as-set, wich contains as-sets as members? Is there any clever command in the RIPE NCC Whois DB available or exists a tool to get out this info from the DB? Many thanks and best regards Hanspeter Hanspeter Seiler Service Development Engineer __________________________________________________ SOLPA AG Monbijoustrasse 6 3011 Bern Phone +41 (0)31 544 44 00 Direct +41 (0)31 544 44 16 Fax +41 (0)31 544 44 09 mailto:hanspeter.seiler@solpa.ch www.solpa.ch SOLPA - Your partner for electronic communications __________________________________________________ The information in this e-mail and in any attachments is confidential and intended solely for the attention and use of the named addressee(s). This information may be subject to legal professional or other privilege or may otherwise be protected by work product immunity or other legal rules. It must not be disclosed to any person without our approval. If you are not the intended recipient, or not a person responsible for delivering it to the intended recipient, you are not authorised to and must not disclose, copy, distribute, or retain this message or any part of it. If you have received this communication in error, please delete this message and any attachments and advise the sender by return e-mail.