National Institute of Information and Communications Technology (NICT) is the only public research institution in Japan specializing in the information and communications technology. Along with our cutting-edge research, as a national institute we are providing calibration services for the radio equipment under the Radio Law of Japan. Here, we introduce our newly launched calibration service to promote R&D of Beyond 5G mobile communications, along with the techniques for human exposure assessment in the THz range for Beyond 5G. In addition, information for the person interested in working for NICT will be provided at our booth.