How to tell a difference between between a cell phone number and land line.?

Question

Some time you get a miss call on your land line or on cell phone from a number you don't recognize. How you can tell if the caller was calling from a land line or from a cell phone.

Answer 1

www.nanpa.com

This site is the North American Numbering Plan Adminstration.

It tells you the area code for states and cities.
It also tells you what telephone companies are using what prefixes.