possible fraudulent phone calls

I've been receiving phone messages, first on my land line and then on my iPhone, that are ostensibly from Apple Inc. They are recorded messages that I cannot understand very well, but they say that there is something wrong with my iCloud account. I've been deleting them without worry until today I noticed that the call on my iPhone Included information that it was from Cupertino, CA, and gave an address of 1 Infinite Loop and a phone number of 1 (800) MYAPPLE. I began to worry that maybe there was really something I should look into.