05-14-2013 02:31 PM
Sorry for your loss !
Please contact your Carrier Bell and let them know about your loss , it is your carrier who is able to block or blacklist your device PIN and IMEI number to make it useless.
05-15-2013 05:44 AM
You have to contact your Carrier for all help related to blocking your device , I agree that all Carrier are not able to Block or Blacklist a device .
BlackBerry ID will not help in Blocking a device but you need device PIN and IMEI numbers for this purpose .Also go through this Article : Lost or Stolen BlackBerry -- What to do?