NumLookup vs sift.email

World's Best Reverse Phone Lookup Tool

NumLookup can help you perform a reverse phone number search and lookup a phone number to identify the owner. You can quickly answer questions like: “Who called me?”, 
“Is this a cell phone number?”
, “Whose phone number is this?”. No registration or sign up is needed to use NumLookup. It is an entirely hassle-free reverse phone lookup tool - enter phone number and get owner's full name. You can now perform free reverse phone lookup using NumLookup. Simply enter the phone number you are trying to lookup using the form below and click on the NumLookup button. NumLookup is a completely free tool for phone number search. No credit card is needed or registration is required to use NumLookup. Wondering who called you? Look no further. NumLookup is world's best reverse lookup service for Cell Phones, VOIP & Landlines that is 100% free. Find out why millions of people in America use NumLookup to find out who called them. Our guarantee to you is that you will not find a more accurate White Pages service for US phone numbers.

Location: California, United States

check if an email address really exist

Identify invalid, disposable, role based or email accounts that no longer exist. Validate using the web app, or integrate with a website or service via API.