As of 2015, there is no website that lists every radio station and their phone numbers. Try manually searching each radio station for their numbers. This makes it easy to compose a list of them.
In the United States, radio stations often list their phone numbers on their official websites. To find contact numbers, search local radio stations' websites. These numbers may be found on the Contact Us page.
Radio-Locator.com lists every radio station that operates in North America. It also lists some ones that broadcast internationally. Use this site to find all the local radio stations in a given city or state. Next, visit the stations' Contact Us pages to find the radio station phone numbers you need.