I have a house about 40 miles north of Cabo San Lucas B.C.S and Telcel is the dominant provider there. I used to see Movistar network there on Sprint sim but now with Tmo R15 its Telcel or AT&T that i have never connected to. Telcel has 5x5 B5, 20x20 B66 LTE and the usual UMTS on air there. LTE is fast when I can connect to it. The coverage also seems a little overstated there according to the map. I am just happy to have usable service there.