Methods, systems, and computer program products for routing query messages associated with prepaid subscribers in a number portability environment are disclosed. One method may include sending a registration message to an HLR. At the HLR, the ID or address of an STP is inserted as the prepaid SCP ID...http://www.google.co.uk/patents/US20070230680?utm_source=gb-gplus-sharePatent US20070230680 - Methods, systems, and computer program products for processing mobile originated query messages for prepaid mobile subscribers in a number portability environment
