Patent ID: 8463258

Claim:
A method for activating a wireless device on a wireless network, the method comprising: receiving an authentication request based on the wireless device attempting to attach to the wireless network, wherein the authorization request specifies an international mobile subscriber identity (IMSI); comparing the IMSI to a set of stored blocked IMSIs, wherein each IMSI of the set of stored blocked IMSIs is prohibited from being used to access the wireless network; in response to the comparison, determining the wireless device that corresponds to the IMSI is permitted to be attached to the wireless network; and in response to determining the wireless device is permitted to attach to the wireless network, causing authentication of the wireless device, wherein the authentication comprises: selecting an authentication center (AUC) from a plurality of AUCs of the wireless network to receive authentication information corresponding to the wireless device based on a response time of the AUC; and transmitting the authentication information corresponding to the wireless device to the selected AUC.