Afair, we had close to 100Mbit/s on our lines. The building wasn't very old, apparently we had good copper wires (I can't comment on the average quality of thos

Afair, we had close to 100Mbit/s on our lines. The building wasn't very old, apparently we had good copper wires (I can't comment on the average quality of those across the country, but knowing Japan, it should be good).