Yes it is all of those that are on a 15 foot truss arm or a 6 foot curved upsweep with a bottom brace all on wooden poles are all ComEds! You will find them outside of Chicago, Northern Illinois, NW Illinois, NE Illinois....middle of Illinois, there's even some of those truss arms south of Chicago outside of the city limits!...but more south of Illinois have different electrical company...and there's no truss arms on wooden poles in that area....different arms on wooden poles.
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all of those that are on a 15 foot truss arm or a 6 foot curved upsweep with a bottom brace all on wooden poles are all ComEds! 
You will find them outside of Chicago, Northern Illinois, NW Illinois, NE Illinois....middle of Illinois, there's even some of those truss arms south of Chicago outside of the city limits!...but more south of Illinois have different electrical company...and there's no truss arms on wooden poles in that area....different arms on wooden poles.