Having fueled generators for both Verizon and Sprint during outages in Washington and Oregon I can tell you Tmobile rarely had generators at its sites during that time. Verizon has a bunch of fixed generators and Sprint had mobile ones deployed. Tmobile with none is a bad mark in my book.
That differs from market to market. Here, T-mobile has a permanent generator sitting at every site, so does Verizon. Sprint only has two. -- WinXP_Home SP2, 1.8GHz P4, 512DDR, DW7000, SatMex5, 1090MHz, RSL~87, WRT54G v5.0, WGPS606 Printer Server.