I purchased a used BB 8700g from ebay.

There is no sim card.

I wiped out the data and ran an update to 4.5 (They did not wipe there personal data from the phone before shipping....)

I do not see any external markings on the phone indicating AT&T, Verizon , etc.

It would appear the provider was 'Cincinnati Bell' as I have a Welcome to Blackberry by Cincinnati Bell message.

Does anyone familiar with wireless & blackberry know if I can I use this phone with another provider?