This is actually Fidelity Investments and is a legit number.

How is this calling

Fidelity Investments. Legit number

This number is a bonafide scam. It announces that "We have been trying to call you. This is Credit card services, and this is your last attempt to lower your credit card rate" (or words to that effect). The "Credit Card Services" is what they were calling themselves. I have received 3 such scam calls from different area codes week