On Thu, Sep 24, 2015 at 9:33 PM, Ian Clark <ian.cl...@dreamhost.com> wrote: > Where do GeoIP companies get their data, if not whois records?
I would assume that they query whois for one of their sources. They don't have to enter any contract with ARIN to do so but they also can't promptly collect any sizable portion database that way. That isn't the same as signing up for bulk whois access (https://www.arin.net/resources/request/bulkwhois.html). I imagine they also do traceroutes to identify the last known location in the route. Regards, Bill Herrin -- William Herrin ................ her...@dirtside.com b...@herrin.us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
