Vanguard Radio Network, established in 1961, operates the following:
105.5 BiG SOUND fm
  Cabanatuan City, Nueva Ecija
95.9 BiG SOUND fm
  Baguio City
105.5 BiG SOUND fm
  San Fernando City, La Union
95.3 BiG SOUND fm
  Cauayan City, Isabela
100.5 BiG SOUND fm
  Tuguegarao City, Cagayan
101.3 BiG SOUND fm
  Solano/Bayombong, Nueva Vizcaya
1188kHz DZXO am
  Cabanatuan City, Nueva Ecija
1395 DWMG am
  Solano/Bayombong, Nueva Vizcaya
88.7 BIG RADIO
  Tagbilaran City, Bohol
 
For inquiries, email us at info@bigsound.com , text BIG to +639062051244 or call +632-892-6520.