Via 411-Portal you get FREE online access to up-to-date telephone databases of the United States of America.
Search on the telephone number and get the corresponding name and address.
Automatically perform a reverse search on unknown incoming calls so you can see who is calling you or whose call you missed.
Insert the information you find into the address book of your mobile device.
Pass the address you find to your map application.
Directly call the telephone number you find.