DZMM (630 AM) was a Philippine radio station owned and operated by ABS-CBN Corporation. The station's studio was located in the ABS-CBN Broadcasting Center, corner of Sgt. Esguerra Avenue and Mother Ignacia Street in Brgy. South Triangle, Diliman, Quezon City, with its 50,000 watt transmitter located at F. Navarette Street, Brgy. Panghulo, Obando, Bulacan. Select programming from the station was also simulcast via satellite over various regional stations, including Puerto Princesa, Cebu, and in Davao City. In 2007 DZMM launched DZMM TeleRadyo, a namesake TV channel which simulcast the radio station and a video feed from the studio.
DZMM went off the air on May 5, 2020 following the expiration of ABS-CBN's legislative franchise to operate terrestrial television and radio stations. Most of the station's programming resumed three days later through the TeleRadyo channel and as an online feed.
The Philippine Collective Media Corporation acquired the frequency in 2023 and relaunched the station in a joint venture with ABS-CBN (via Media Serbisyo Production Corporation), with the call-sign DWPM and initially under the Radyo 630 branding. On May 29, 2025 Radyo 630 and its television counterpart TeleRadyo Serbisyo rebranded back to DZMM Radyo Patrol 630 and DZMM TeleRadyo, reinstating the iconic callsign after five years' absence. But even after this rebranding the station still retained the DWPM callsign prescribed by the National Telecommunications Commission (NTC), meaning the DZMM callsign no longer exists except as part of the brands DZMM Radyo Patrol 630 and DZMM TeleRadyo.
History First iteration: 1953–72 DZMM can trace its roots back through its direct forerunner DZAQ to the pre-1953 experimental station DZBC, which used the Filipino language in its broadcasts instead of the English lingua franca dominant on other stations at that time. DZAQ itself was established on October 19, 1953 as the first radio station of the former Alto Broadcasting System (ABS), then owned by the Quirino family under President Elpidio Quirino's brother Antonio. DZAQ 620 kHz featured news, variety, and music programs on the then-standard AM format and served as the progenitor for DZAQ-TV 3, with Eddie Ilarde, Ike Lozada, German Moreno, and Joey de Leon being some of the station's best-known personalities. Its first radio studios in Aduana, Intramuros, Manila shared the same building as the television studios until 1957, when the DZAQ radio studios moved to the then-new ABS radio and television studios in Pasay.
When ABS and the Lopez-owned Chronicle Broadcasting Network (CBN) formally merged into a single network in 1967, DZAQ 620 kHz switched frequencies with CBN-owned DZXL 960 kHz and was rebranded as DZAQ Radyo Patrol 960 kHz, becoming one of ABS-CBN's pre-martial law flagship AM stations. Ben Aniceto and Orly Mercado – the station manager from 1969 to 1971 – together came up with a vision to establish a 24-hour all-news/talk radio station and ABS-CBN agreed. Putting it under the Radyo Patrol brand – the successor to the 24 hour news station DZQL Radyo Reloj which CBN had launched in 1956 – DZAQ Radyo Patrol became the first 24-hour news radio station anywhere in Southeast Asia.
The first and original Radyo Patrol team was hastily organized in 1967 in the aftermath of Super Typhoon Welming (international name: Emma) when then-program manager Ben Aniceto and chief engineer Emilio Solidum found a way to broadcast typhoon damage news from Manila and the surrounding areas. They dispatched Volkswagen Kombis fitted with UHF transmitters, Kombi One with Al Mendez and Zoilo Paragas Jr as reporters and Kombi 2 with Bar Samson. DZQL and DZXL became the carrying stations for their news reports, with then-DJs Naldy Castro, Buddy Medina, Boots Baker, Mary Jane Madamba, and Ike Lozada alternating as anchors, and Cesar Mortega coordinating the broadcasts. It proved to be a huge success for the corporation, and for its news service.
The magnitude 7.6 earthquake in Casiguran on August 2, 1968 which severely affected Manila and led to the collapse of the Ruby Tower in the capital's downtown district was the second major news event that was a progenitor of the current Radyo Patrol. DZAQ again took on the task of informing the nation live as it happened, with the coordination handled by former DZAQ station manager Orly Mercado and veteran broadcaster Joe Taruc, and the first reporters assigned to Radyo Patrol being Mercado himself, Jun Ricafrente, Mario Garcia, Cris Daluz, and Ismael Reyes. This marathon radio-TV simulcast of a major event was the first of its kind by Philippine media and was a great success. The Radyo Patrol format later became an integral part of DZAQ's broadcasts, with the station's field reporters being assigned to cover breaking news stories and then calling in to the station to convey those stories as they happened.
Encouraged by the success of the field reports on breaking news stories in the Greater Manila Area and beyond, DZAQ later converted into a 24-hour uninterrupted news and commentary station covering national events of importance. At the same time the original team of five field reporters was expanded to include young announcers like Rey Langit, Ernie Baron, and Manolo Favis alongside industry news veterans. By 1971 the success of the Radyo Patrol format in the Greater Manila Area had led to select ABS-CBN provincial radio stations establishing Radyo Patrol news services within their own areas.
Martial law period: 1972–86
The operations of DZAQ, DZXL, DZYK-FM, DZAQ-TV, DZXL-TV and 4 other ABS-CBN AM radio stations were halted during the night of September 23, 1972 when Metrocom forces seized ABS-CBN Broadcasting Center two days after President Ferdinand Marcos declared martial law. Some DZAQ and DZXL personalities were arrested because of the strict censorship as the stations went off the air.
DWWX-AM 620 of the Banahaw Broadcasting Corporation (BBC) took over the frequency in 1973, thirteen months after all radio and television stations were shut down under martial law. In response to the NTC law that broadcasters could have only one station per market, BBC took DWWX off the air in 1975, instead focusing on its other station DWWA 1160. Meanwhile, DWWW Radyo Broadcast City, an AM station of the Kanlaon Broadcasting System now known as Radio Philippines Network (KBS/RPN) went on air in 1973 with news, public service programs, drama, and music, with veteran anchors and new recruits like Johnny de Leon, Rod Navarro, Joe Taruc,and Vic Morales joining DWWW at that time. Dely Magpayo, Henry Jones Ragas, Gel Santos-Relos, Julie Fe Navarro, Bert "Tawa" Marcelo, and Noli de Castro were among those who worked as station announcers.
Under KBS/RPN control the station was dubbed Pinakamatatag sa Buong Pilipinas (). Back then its frequency was 1280 kHz, but later in 1975 it migrated to 620 kHz after the shutdown of DWWX-AM. Following the switch on November 23, 1978 of the Philippine AM radio bandplan from the NARBA-implemented 10 kHz spacing (used from 1922 until November 22, 1978) to the GE75-implemented 9 kHz spacing, DWWW's frequency was reassigned from 620 to 630 AM, and the station gained a new home at Broadcast City in Diliman, Quezon City, Metro Manila.
Following the capture of MBS 4 on the morning of February 24, 1986 and RPN 9 the day after, on the third day of the 1986 EDSA Revolution reformist soldiers stormed into the RPN broadcasting complex and took DWWW off the air. Following Cory Aquino's accession to the presidency both RPN's DWWW and BBC'sDWWK-FM were sequestered by the government, with the then-newly formed Presidential Commission on Good Government handing back the two radio stations to ABS-CBN in April 1986.
Second iteration: 1986–2016
Preparations and re-launch: 1986 After DWWW's handback to ABS-CBN the station changed its callsign to DZMM and began preparations for the resumption of broadcasts. Vice-president for radio Lito Balquiedra Jr., Mr. Ben Aniceto, and attorney Jake Lopez (a member of the ABS-CBN news teams of the 60s and early 70s) together spearheaded the station's preparations and launch, recruiting a new generation of Radyo Patrol reporters alongside experienced employees. After days of careful planning a test broadcast took place from July 16th to July 21st, 1986 alongside DWKO-FM 101.9 and the network's mother TV station ABS-CBN Channel 2, which re-opened on September 14.
DZMM officially went on air at 3pm on July 22, 1986, broadcasting from its studios in the Chronicle Building in Pasig with the new tagline "Ang Himpilan ng Malayang Mamamayan" (). Rene Jose delivered the first sign-on spiels, Magpayo was the first ever anchor with her program Dear Tiya Dely, and other early broadcast icons included Jun Ricafrente, Cesar Mortega, Ernie Baron, Kuya Cesar, Ric Tierro, and de Castro, as well as newly recruited female hosts Mel Tiangco and Angelique Lazo. The first full-length program the station launched was Knowledge Power, the country's first-ever scholastic program on AM radio. Months after the station's reopening, Mario Garcia, part of the original Radyo Patrol core, became the first station manager.
First fifteen years: 1986–1991 During its first years of operations DZMM maintained a 19 to 20-hours-a-day schedule throughout the week, transferring from the former Chronicle Building in Ortigas Center, Pasig to the ABS-CBN Broadcast Center in Quezon City in 1987. That same year the first-ever tandem presenting on local AM radio was introduced in Mel & Jay, hosted by Mel Tiangco and Jay Sonza. It was also the year in which DZMM gradually built a remarkable roster of radio talents, including Ted Failon, Korina Sanchez, Frankie Evangelista, Gel Santos-Relos, Neil Ocampo, Jake Maderazo, and Ernie Angeles, the latter also serving as the station's voiceover announcer during its first decade of operations.
DZMM maintained the tradition of the ABS-CBN Radyo Patrol field reporters of the 1960s and early 1970s so as to develop the station's public service capabilities. One of the original members of the team, Radyo Patrol #3 Jun Ricafrente, started training new recruits, with the first of the second generation of reporters to be selected being Radyo Patrol #2 Claude Vitug, Radyo Patrol #4 Emil Recometa, Radyo Patrol #1 Lito Villarosa, and Radyo Patrol #5 Neil Ocampo.Abs-Cbn – Dzmm Main And when military insurgents tried to take over the station during the 1987 coup attempt, the plan was thwarted by moving the booth to an undisclosed location where it immediately resumed broadcasting.
Keeping up with the demands of delivering news to listeners, DZMM eventually evolved into a 24-hour round-the-clock broadcast service in 1989. Ted Failon joined DZMM's roster of broadcasters the following year with Gising Pilipinas, originally known as Good Morning Pilipinas but unrelated to the now defunct morning show that aired on PTV. Known for his outside-the-box broadcasting style, Failon changed the landscape of Philippine radio broadcasting as he aired from 2 am to 4 am on weekdays.
During the late 1980s and the early 1990s the station's notable news coverages included the Mendiola riot, the August 1987 coup, Supertyphoon Sisang, the Doña Paz sinking, the death of Ferdinand Marcos, the December 1989 Christmas coup, the Luzon earthquake, the 1991 eruption of Mount Pinatubo, and the Gulf War. ABS-CBN News reporters witnessed all of these events and made them available to listeners on AM radio, a source of pride for the station as it received great acclaim from the public for its ability to deliver live, accurate reporting of breaking news stories.
New initiatives: 1991–1998