www.att.net back up over IPv6

[frnkblk]

After being down since early May 2014, www.att.net is now back up over IPv6
since 7:29 pm U.S. Central.

Sites that we track that were up but remain down over IPv6 are
www.charter.com, www.dnssec.comcast.net, and www.globalcrossing.com.

Frank