How do I activate my prepaid Blackberry plan? The customer is required to text a keyword to short code 136 to subscribe to a Prepaid BlackBerry plan. The keyword per plan is as below: For example: Text keyword BB7 to 136 Related articles What are the prepaid plans for Blackberry? What are the advantages of Blackberry service? What is Blackberry Service? What is the Basic Eligibility Criteria? How do I become eligible for the Credit on Loan Service?