@KiltedTim: Thanks! Yes, as Belize Telemedia. I bought the phone direct from Apple since they now sell factory unlocked iphone 4s phones. Will be travelling to Mexico this weekend, let's see how it works out cause I checked with my carrier and they say that my Roaming is active and enabled. But like i mentioned before, I owned a Samsung GSM phone prior to my iphone GSM and it worked with the same simm card that I am using presently. Unfortunately since my simm card had to be cut to fit the 4s series I can no longer use on my other phone.