A method and system for transferring access to cellular services from a postpaid subscriber account to a prepaid subscriber account are disclosed. A central postpaid system receives a request to transfer cellular services from the postpaid subscriber account to the prepaid subscriber account. The cellular services are transferred to a central prepaid system for the prepaid subscriber account. The amount of the transferred cellular services is deducted from the postpaid subscriber account stored in the central postpaid system. A monetary amount from the prepaid subscriber account is credited to the postpaid subscriber account for the transferred amount of cellular services.