A wireless device may include a digital receiver and a digital transmitter, and a controller configured to control the digital receiver to receive signals and the digital transmitter to transmit signals, and further configured to receive a registration rejection from a first roaming mobile network while roaming, add the first roaming mobile network to a list of forbidden mobile networks, register with a second roaming mobile network and receiving an operator list of mobile networks from a home mobile network, and attempt to register with the first roaming mobile network based on a ranking of mobile networks in the operator list.