Or, it could be a spoofed number, as noted above. Unfortunately, as many of these people claim to be on the DNC and do not have a business relationship with Fidelity, these would be illegal calls, so questioning the circumstances is surely reasonable.
Caller left message -said his name was Andrew - said he wanted to go over my portfolio with Sedodie Investments - I don't have a portfolio with those people - he left callback number of 800 544-5315 ext 17479. I didnt call him back- seemed suspicious! Number on caller ID was 603 864-6488