Vanguard Radio Network (VRN) is a

Philippine The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

radio network There are two types of radio network currently in use around the world: the one-to-many (simplex communication) broadcast network commonly used for public information and mass media, mass-media entertainment, and the two-way radio (Duplex (teleco ...

. Its corporate office is located at Rm. 614, Cityland Shaw Tower, St. Francis St. cor. Shaw Blvd., Ortigas Center,

Mandaluyong Mandaluyong ( ; ), officially the City of Mandaluyong (, ), is a Cities of the Philippines#Legal classification, highly-urbanized city in the Metro Manila, National Capital Region of the Philippines. According to the 2020 census, it has a popula ...

, and its main headquarters is located at Pan-Philippine Highway, Brgy. Sangitan East,

Cabanatuan Cabanatuan, officially the City of Cabanatuan (; ; kapampangan language, Kapampangan: ''Lakanbalen/Ciudad ning Cabanatuan''), is a Cities of the Philippines#Legal classification, component city in the province of Nueva Ecija, Philippines. Acco ...

. VRN operates a number of stations across regional places in

Luzon Luzon ( , ) is the largest and most populous List of islands in the Philippines, island in the Philippines. Located in the northern portion of the List of islands of the Philippines, Philippine archipelago, it is the economic and political ce ...

under the Big Sound FM and Big Radio brands.

VRN stations

AM stations

FM stations

Former stations

Trademark dispute

In July 2011, VRN filed a legal

trademark infringement Trademark infringement is a violation of the exclusive rights attached to a trademark without the authorization of the trademark owner or any licensees (provided that such authorization was within the scope of the licence). Infringement may occ ...

case at the Intellectual Property Office against Manuelito F. Luzon, owner of ZimZam Management which operates and manages Metro Manila station

DWKY DWKY (91.5 FM broadcasting, FM), broadcasting as 91.5 Win Radio, is a radio station owned by Mabuhay Broadcasting System and operated by Manuelito "Manny" Luzon's Win Radio, ZimZam Management, Inc. It serves as the flagship station of the Win ...

(which used the "Big Radio" brand). Luzon was accused of using the said brand without any permission from VRN, citing that VRN already owned the said brand alongside the "Big Sound FM" brand. The case was upheld in 2017, and Luzon violated Section 147 of the Intellectual Property Code of the Philippines.

References

Radio stations in the Philippines Philippine radio networks {{Philippines-media-stub