Methods and systems for using and/or storing identity data associated with a device to direct communications to another device are described herein. A server may store identity data, such as subscriber identity module (SIM) data, associated with a device or user. The SIM data may be used to authenticate and/or register the device or user with a mobile network. Using the SIM data, other devices may use the capabilities of the first device. The server may receive, from another device, a request to access one or more capabilities of the first device. Based on the request, the server may send a request to register the SIM data with a mobile network. After registration of the SIM data with the mobile network, the server may be used to direct communications to the other device.