This chart was created before the series of smaller mergers that has added Cumulus Media to the ranks of the megaconglomerates. Most of Cumulus' growth came not by merging with multi-market operators, but instead by acquiring stations a handful at a time. Their merger with Citadel Broadcasting in 2011 was by far their biggest move, as Citadel had previously acquired the stations owned by ABC Radio in 2007 and those stations are now owned by Cumulus.

Thanks to public radio station WFMU 91.1/90.1 in New Jersey for sending a tweet to this page on January 30, 2012.