Here is a list of the top credit card issuing banks, and the number to call. Note that there is not a standard way of contacting the banks and filing fraud and dispute claims. Some are fraud departments, some are disputes, and some are the customer service number. If there was a number specifically for credit card fraud, that is the number listed. Otherwise it is a disputes or customer service number.
You can click on the number with most smartphones and Skype.
American Express
Bank of America
Barclay Card
BB&T
Capital One
Chase
Citibank
Commerce Bank
Discover
Fifth Third Bank
HSBC
Note: Wants you to call number on card or statement.
M&T Bank
PNC
SunTrust
TD Bank
U.S. Bank
USAA
Wells Fargo