
What mobile carrier offer the best roaming services in Los Angeles
The AT&T or Cingular doesn't have any roaming or long-distance charges on all of their plans. Depending on what plan you choose with AT&T they don't charges on their roaming services.
http://cellphones.about.com/od/attserviceplans/p/attnationplans.htm
Most carriers have great offers for their roaming services but it's much wiser to just use a long distance calling card if you intend to have long phone calls on other countries. And the international charges also differ depending on what country you are in.
But some carriers follow similar roaming rates and long distance call on places outside the US.
http://www.t-mobile.com/shop/plans/prepaidrates.aspx

