415it - San Francisco, Marin, San Mateo Area Code Updater
San Francisco, San Mateo, Marin County, fear 10 digit dialing no more. With the addition of another area code, residents are now required to dial the area code before the seven digit phone number for local calls. 415it will automate the task of adding the 415 area code to existing 7 digit local phone numbers in your contacts list.