As previously announced, B-Root’s IPv6 address was renumbered to 2001:500:200::b, effective 2017-06-01. (Or IPv6 address previously was 2001:500:84::b; we will continue to operate service on the old address for at least 6 months.)

We also plan renumber our IPv4 address in October 2017; we will post more details here when we have them.