unknown number

missed a call from this number, too.
Philadelphia area code? i have no unknown affiliations with people in this area, so i'm assuming they just received my number from some survey or some other.
tried calling it back, but call couldn't be connected.

Did not say what company he was with instead gave me a LONG string of numbers and letters and said dot com at the end of the sentence. He claimed to have information for the owner regarding rates for heath insurance and better policies. I told him not to bother calling back, I won't put him through ever.

This phone number belongs to a telemarketing business called "Company Voice" located in Blue Bell, PA.  They are calling me twice a day every weekday despite my number being on the do not call registry.

The call was in reference to refinancing mortgage.