When I was opening my phone bill last night, I found one phone number that I didn’t know. To know who belongs to that phone number, I should know the area code first. Then, I browsed in the internet to find and reference about US area code. After browsing for a few minutes, I finally stopped in this Search Area Codes. I directly typed the phone number in the available box of this Search Area Codes, wait for a few second. Beside s for reversing phone lookups, this Search Area Codes can be used to find the exact address of someone or your friends.