Commonwealth Edison has lost several large transformers feeding the the "West Loop" in Chicago. Commonwealth Edison reports the outage is in the Jefferson substation at 828 S. Jefferson St. starting around 10am CDT. There are some major ISP/Telco facilties near that area. At the moment, the ones I was able to reach report they are up on backup power. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation