So this afternoon, as my lovely wife and I were strolling through the din of Avenida Revolución, my T-Mobile cell rang. I answered it and talked for a couple of minutes, figuring that we were in front of Gigante's grocery store six blocks from the American border and that Cingular/T-Mobile blast signal as far as they possibly can into Mexico. When I hung up, though, my phone showed absolutely full reception from MOVISTAR. Movistar is a division of Telefónica Móviles de Españna, S.A. de C.V., and I could have sworn that Telefónica ran CDMA, especially since the people we were drinking with in Rosarito had Verizon phones that were roaming on it. Last time I went down there my phone was on Telcel until Puerto Nuevo, at which point it lost signal till Ensenada. But here I was looking at that pressed tin arch that looks like the cheap Mexican version of St Louis' Gateway Arch and is a hundred metres south of the border and I could not for the life of me get an American signal. Weird. I wonder when Telefónica switched to GSM.
as far as i know, telefónica has always been GSM. it is in many countries of latin america, and they are all GSM. did you use telefónica on CDMA before?? that's pretty weird!
Telefonica Movistar bought out Baja Cellular in Baja California. So yea there in Baja California Norte it is AMPS/CDMA unless they converted it to GSM since thats what Baja Cellular had. So hope that answers your question.
Oh I didn't read carefully enough my apoligies. So I guess telefonica movistar did convert to GSM. And now people with Verizon roam on Iusacell PCS in TJ, Tecate, Rosarito, Ensanada, San Luis Rio Colorado and Mexicali areas (since Verizon owns a part of Iusacell) and I think Sprint uses them too. There coverage really sucks tho since there pretty new to the area.
I believe Sprint has an agreement with Iusacell as well but in TJ, Rosarito etc however Pegaso PCS was their main roaming provider down there. They were 65 % purchased by Telfonica Moviles which is mainly GSM. Their CDMA network is still up but I don't know if it is staying/shrinking/expanding or what. G.
I think that Telefonica made the switch to GSM since their networks in Spain and other countries are GSM thus making it more compatible with the rest of their assets. Vodafone is the same kind of situation with their network portfolio as most of you may know. Their only non 2G (GSM) assets are Verizon in the US and J-Phone in Japan (3G).