I got only 3G with an iPhone 6 with one dot (bar) signal wireless coverage at corner of Crested Bird & Groveland (near Groveland & Irvine Blvd. intersection).
What worse is that I constantly get calls dropped!
and see one Tower at 13241 Jeffrey Rd. Irvine, CA which owns by Verizon but it may not be working?
I this this tower is constructed: