DZRL is also the ICAO code for Rennes-le-Château airport in France.DZRL Radyo Ronda Batac is a radio station owned by Radio Philippines Network and Nine Media Corporation. Its studios, offices, and transmitter are located at RPN Building, National Highway, City of Batac, Ilocos Norte, which is a stone's throw away from the Batac Campus of the Mariano Marcos State University.The station operates at 639 kHz on the AM band.It also serves as a relay station of sister station DWIZ 882 Manila