A computer-implemented method, system, and computer program product for handling identification information emitted by a radio frequency device, and a radio frequency device for emitting identification information. The method receives and stores identification information transmitted by the radio frequency device, retrieves the identification information from the first mobile communication device, and inserts the identification information into the communication. The system includes a first mobile communication device, a second communication device, and an inserting means. The computer program product includes computer program instructions for carrying out the steps of the method. The radio frequency device includes an antenna adapted to operate in UHF frequency bands, an energy storage means adapted to be charged with energy captured through the antenna, an information storage means adapted to store information, and a transmission means adapted to transmit the information using the energy from the energy storage means.