What is Blackberry Network Unlocking code?

Blackberry network unlock codes the same codes which is use to unlock Blackberry. Wireless providers who sell BlackBerry devices, such as AT&T, T-Mobile, Vodafone or Verizon, don't want you to switch to another service provider, so they lock your phone so it can't be used on a different provider's/carrier`s network. But if you're traveling overseas and you don't want to pay international rates every time you use your BlackBerry, or you decide that you don't like your provider and you want to switch then these unlock codes are used to unlock that restriction.

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