Not really relevant to your market, but in my market AT&T uses Ericsson RRUs on many of their sites.
Additionally I believe some smaller regional carriers use then as well (pretty sure I saw some for Bluegrass Cellular).
Just talked to a co-worker near the Blazer Pkwy site, and his phone isn't picking up LTE yet. I'll be driving by on my way home tonight and will be checking it again.
EDIT: Blazer site is live now.
Something is going on in Lexington but not in that specific area yet. Probably just seeing the back-haul upgrades they have done in preparation of the NV work.
I assume the nv site your talking about is network.sprint.com
If so, that site doesn't just show NV upgrades, is shows legacy "band-aid" upgrades as well.
In the sponsor section of the site I have posted pictures of work going on in Lexington. Confirmed 1 site has Panels, RRUs, and Cabinets installed but not active.
Possible work on at least 2 more sites.
I'm an indirect dealer, Monday I received a dealer news report directly from Sprint saying EKY was underway. I would post the exact verbiage but it's marked confidential.