How would I find all the IP ranges currently assigned to company X?
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I need to know all the address ranges that my ISP can use for their - whatever needs. So I started with digging the domain name of one of their mailservers and fed the result to whois. I got a subnet (eg 232.23.0.0/16).
But! That company might have other ranges assigned. How would I find out? Thx -
http://whois.arin.net/rest/ip/232.23.0.0
I'd start with that URL but put known IPs in there. You might be able to find other blocks the ISP owns by going up the hierarchy.
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Well, in the meantime i found out that I am in the "ripe" zone (the subnet was just an example) and I've tried https://apps.db.ripe.net/search/query.html to find out more but I am seriously lost…
Im gonna read https://www.ripe.net/data-tools/support/documentation/ripe-database-user-manual-getting-started now.
sorry for pre-maturely asking about this. I just can't stop asking for help instead of putting some effort in reading about things...first! :P