[2] CMN was known as the Philippine Federation of Catholic Broadcasters (PFCB), a radio network founded through the efforts of Fr.

In October 2017, the House of Representatives threatened not to renew the 25-year franchise of the CBCP's broadcast radio operations (including some of the CMN member stations), citing criticism on the Duterte administration over war on drugs.

However, CMN's de facto flagship station DZRV, was not part of it as it is operated by CBCP's affiliate Global Broadcasting System, which its franchise was already renewed by the Aquino administration a year earlier.

Eventually, in July 2019, CBCP broadcast franchise was renewed for 25 years after its respective bill was lapsed into law as President Rodrigo Duterte did not signed it within the period set by the Constitution.

CMN's AM stations are grouped as Radyo Totoo (Tagalog, “Radio True”), with the exception of DWAL in Batangas.