I want to know what IP ranges are belonging for example to the AS714.
How do I get this information?
I know how to do the reverse way, which is easy with whois. But the other way doesn't seem to be that easy.
Ok, I just found one way to do it for RIPE IP/AS areas. Just go to http://www.ripe.net/data-tools/stats/ris/routing-information-service type in the AS and go to prefixes. You'll see all IP ranges that belong to this certain AS.