What is an Area Code? An area code is a section of a telephone number that denotes the broad area that the phone receiving the call is based in. Area codes were first introduced circa 1947 for operator use only. Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 858 serves the state of California.
The Table Below Shows the Towns and Cities That Use Area Code 858
Alpine Bonita Bostonia Boulevard Campo Casa de Oro-Mount Helix Chula Vista Coronado | Crest Del Mar Descanso El Cajon Eucalyptus Hills Fairbanks Ranch Granite Hills Harbison Canyon | Imperial Beach Jacumba Jamul Lakeside La Mesa La Presa Lemon Grove National City | Pine Valley Potrero Poway Rancho San Diego San Diego Santee Solana Beach Spring Valley Winter Gardens |