You possibly can since they both require SIM cards. You might have to unlock your Blackberry though to switch services.
I haven't a clue which Blackberry you have, but here is a website that might help.
http://iunlockblackberry.com/instructions/
I have a Blackberry Storm that is only offered by Verizon. I have unlocked it and am using it on ATT. The best way to do this is to go to www.crackberry.com and go through some of the disucssions there. They have lots of unlocking tips and links. The best one I found was www.berryology.com. This website is all about unlocking Blackberry phones.
no, sprint and Verizon are cmda. att and t-moble are gsm.
sadly no the black berry storm 2 dose not work on att, but it dose work on the network verizon.
You can't use Verizon service on ATT phones or any other GSM phones. Verizon runs on a different frequency, which ATT phones do not support.
no you cannot, one is gsm and the other is cdma
No
yes you are charged by verizon
You can find blackberry cell phones from Verizon, ATT, t-mobile etc. Check www.verizonwireless.com or www.at&t.com or which ever career you ise and check what they have.
They do not sell blackberry storms at At&T. They sell a blackberry bold phone, but you can only get the storm at Verizon unless you buy it from someone on eBay, and have it flashed over..and that's njot a fer sher either...
Verizon Blackberry
Yes, you can flash a Verizon phone to ATT. However, you will also need to insert a Verizon SIM card into the ATT phone in order for it to properly work.
will not work!