It's not that there is no feasible way for an operator to determine it's an NZ prefix - it's certainly determinable via existing means and the big players already do it with these tests (such as latency) built directly into their web apps. It's merely a side effect of Mediaworks using g a poor quality technology for their geolocation. Just IMO, and I accept it's not even worth 2c :)
On 23/11/2020, at 11:17 AM, Brian E Carpenter
wrote: A traceroute to an address in that /24 from Auckland ends thus: <snip> so it is indeed ~180 ms closer than Singapore. Just shows how dodgy geolocation by IP address is (and always will be). This is something the ISP has to sort
On 23-Nov-20 10:48, Nathan Ward wrote:
<snip> There’s no feasible way for someone like Mediaworks to know that this is an NZ prefix, all the documentation points to Singapore.