Question: how to call knbr 680?
Answer: Mailing Address. 750 Battery St., Suite 300. San Francisco, CA 94111.
Telephone. Business: 415-995-6800. Fax: 415-995-6867. KNBR 680 Studio: 808-KNBR (to talk with show hosts on-air from area codes 415/408/650/510/925/707) ... 
Email. General Questions and Promotions. Program Director Jeremiah Crowe. Murph & Mac.