I use radiotime, its like 2.99 in the market, and you can search for coast to coast am, and it will show you all the stations available that are playing it, theres a ton on radiotime... you can always find stuff just by searching for the shot name, it tells you all the stations its on, and how much longer its gonna be on.
Probably not the answer you're looking for, but I downloaded the free app IHeartRadio (made by ClearChannel) to get Coast to Coast. Has a lot of negative reviews but it's always worked fine for streaming KFI640, Southern California's Coast to Coast carrier.
Iheartradio is good also, I used that for quite a while, provides great streams, no real complaints about it. My problem was none of my local stations are Clear Channel, so I didnt get the news I wanted... so I had to buy Radiotime, but all in all, iheartradio is a sweet app too