Is there on the internet where you can lookup phone numbers for free and
Not have to pay ANYTHING!

Yellow or white pages.com depending if you want a business or resident

There are several sites that allow you to lookup phone numbers of people or businesses. Switchboard.com, 411.com and several others.

If you are asking about a reverse lookup, finding out who has a phone number, try anywho.com.

is there on the internet where you can lookup phone numbers for free and
not have to pay ANYTHING!
Another really great one for looking to see if telemarketers or collection agencies are calling you is whocalled.us