Comment by sgjohnson

> I disabled ICMP reply on my home router.

Doesn't actually help at all because the BGP announced prefix of your IP can still be tracerouted. You won't be physically far from it.

Say if your ISP announces 125.15.18.0/17 and you're in 125.15.29.145, a traceroute will still yield a pretty good approximation of where you're at. The last hop ping is really quite immaterial here.