Geico aired more than 47,000 commercials nationwide last week
According to Media Monitors, GEICO took the top spot as radio's number one advertiser. Researchers said GEICO aired 47,571 commercials across the nation last week. That increased of nearly 2,000 ads compared to the previous week.
Home Depot was number two at 41,871 ads.
Lowe's was number three at 31,748 ads.
Walgreens was fourth at 30,807 ads.
Rounding out the top five was JC Penney at 29,389 ads.