Cox Gigablast Not Available in a New Build Community Where Competitor Gig is?

Hey there, I was wondering why it seems like Cox's Gig Service isn't available in Arizona, down in the new Eastmark Masterplan Community (85212) when it seems that CenturyLink is offering their gig service at the same time.

Fiber is fiber so is there a reason why Cox hasn't jumped onboard?  From what I can tell it seems that despite advertising Gig service all over the Phoenix Metro, Cox isn't really selling it anywhere.

Going to be moving down there soon and inquiring minds want to know.