I am using the Century Link ISP from Saint Paul, MN. No Wikimedia sites can be reached, other sites work fine.
Reports on http://www.isitdownrightnow.com/wikipedia.org.html indicate that this affects other CenturyLink customers and has been going on for 45 hours.
Two tracert ouputs, taken 30 minutes apart:
$ tracert en.wikipedia.org Tracing route to en.wikipedia.org [208.80.154.224]over a maximum of 30 hops: 1 2 ms 1 ms 2 ms 192.168.0.1 2 44 ms 41 ms 44 ms 207.225.140.237 3 44 ms 48 ms 56 ms mpls-agw1.inet.qwest.net [75.168.229.97] 4 54 ms 54 ms 59 ms chp-brdr-03.inet.qwest.net [67.14.8.194] 5 55 ms 51 ms 55 ms ae5.chi12.ip4.gtt.net [173.205.63.229] 6 78 ms 79 ms 78 ms xe-0-3-1.was10.ip4.gtt.net [89.149.128.141] 7 * * * Request timed out. 8 * * 299 ms text-lb.eqiad.wikimedia.org [208.80.154.224] Trace complete.
$ tracert en.wikipedia.org Tracing route to en.wikipedia.org [208.80.154.224]over a maximum of 30 hops: 1 2 ms 1 ms 1 ms 192.168.0.1 2 47 ms 41 ms 41 ms 207.225.140.237 3 48 ms 46 ms 42 ms mpls-agw1.inet.qwest.net [75.168.229.97] 4 50 ms 51 ms 57 ms chp-brdr-03.inet.qwest.net [67.14.8.194] 5 51 ms 55 ms 50 ms ae5.chi12.ip4.gtt.net [173.205.63.229] 6 77 ms 86 ms 78 ms et-4-3-0.was10.ip4.gtt.net [89.149.129.210] 7 * 303 ms 291 ms xe-5-3-1.cr2-eqiad.wikimedia.org [173.241.131.218] 8 * * * Request timed out. 9 * * * Request timed out. 10 * 295 ms * text-lb.eqiad.wikimedia.org [208.80.154.224] 11 * * * Request timed out. 12 * * 321 ms text-lb.eqiad.wikimedia.org [208.80.154.224] Trace complete.