Manila Broadcasting Company Radio Stations (Circa 1979)

DZRH 656 kHz Metro Manila
DWIZ 800 kHz Metro Manila
DZMB-FM 90.7 MHz Metro Manila

DZJC 730 kHz Laoag
DYEZ 670 kHz Bacolod
DYRC 620 kHz Cebu
DXRH 1300 kHz Davao
DWIL-FM 90.7 MHz Laoag
DYMB-FM 97.5 MHz Iloilo