Users on Centurylink Fiber can reach us in 4ms over IPv6 (despite it not being true IPv6) versus 45ms to 60ms with IPv4. DSL is similiar but not quite as notable, more like 30ms of saved latency.
The root issue is Centurylink has no peering with Hurricane Electric on IPv4, and ditto for peering with numerous other providers, versus on IPv6 they have a much more open peering policy. This seems to be common among a number of ISPs, though as time goes on this issue will hopefully ease.
The root issue is Centurylink has no peering with Hurricane Electric on IPv4, and ditto for peering with numerous other providers, versus on IPv6 they have a much more open peering policy. This seems to be common among a number of ISPs, though as time goes on this issue will hopefully ease.