Who knows of good website to get a reliable reverse cellphone and email look up?

• cheap ecommerce website
• email marketing solution

I'm looking for a reliable, inexpensive website so I can do a cellphone and email reverse look up. Wanting to check where number is coming from and who is really emailing and calling me. Could possibly be a romantic and gold scam coming out of the country of Ghana on the continent of Africa, thank you all.

Who knows of good website to get a reliable reverse cellphone and email look up?