It looks like no one has responded to you since may. Dont know if you will read this but I had Verizon a while ago, and it had no sim cards. They dont even make a slot for them in their phones. So unfortunately, you cannot use your sim card in verizon or sprint phones. Only in T-mobile or ATT phones. I actually have a Tmobile phone now and I use ATT. Sprint and Verizon have the new Blackberry 8330 and I REALLY want one, but unfortunately again, cannot put my sim card in their phones.