It was a big deal when AT&T purchased 2 of the wireless networks in Mexico. There was hope that someday US vacationers could use their phones in Mexico just like they do at home. While AT&T gears up to spend Billions to upgrade their new networks, T-Mobile comes up with a deal that opens that door, today, and for a much lower cost. T-Mobile's roamers use the best Mexico networks available...today...and we get Canada thrown in, too. In our world this also means Cricket Wireless, GoPhone and MetroPCS change their roaming story as well.
It's no small deal that AT&T customers get no data roaming...yet...and T-Mobile's do. Of course this will change sometime in the future. AT&T will construct a 4G LTE network and data will be included for Mexico roamers, but they may end up playing catchup for years.
To the benefit of Mexican wireless users, the other wireless networks in Mexico have also promised Billions to improve their own networks to 4G LTE as well, which will also benefit T-Mobile roamers. We have no idea what will happen in Canada. AT&T probably won't buy a network there. They will need to eventually do what T-Mobile has already done. Not only has the magenta network invaded the rest of North America with a pen, they continue to disrupt the wireless landscape in the US with a better idea.
Sprint is coming out with a similar plan, Open World, which offers free calls, text and Data while roaming in Mexico, Canada, Dominican Republic, Argentina, Brazil, Chile, Colombia, Costa
Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama and Paraguay. There may be some limits with this plan unless your Sprint phone includes GSM circuitry.
We're following the deals at MexicoCellular.com.