[LINK] RFI: Geolocation based on IP-Address

[Kim Davies]

Quoting Roger Clarke on Thursday September 27, 2007:
| 
| 4.240.244.220.in-addr.arpa      name = 220-244-240-4-act-pppoe.tpgi.com.au.
| So they rely on parsing the DNS entry for odd strings like 'act'?

I think the possibly unspoken assumption here is that they are parsing
for this _automatically_, which is probably wrong. Ranges are likely are
computed using rules that have been devised after humans have studied
and individually classified the naming systems and routing arrangements
employed by each network provider.

kim