Find any 661- phone number in California

The 661 area code is a telephone numbering plan code or NPA that covers the majority of Kern County, California; most of north San Luis Obispo County; small portions of southeast Santa Barbara County; and a teeny bit of Tulare County. It serves the Bakersfield metropolitan area, and it was created in 1999 due to a split from the 805 area code.

The 661 area code is part of the North American Numbering Plan (NANP), which is a system that divides telephone numbers into geographic regions, assigning a unique area code to each region. These geographic areas, or Numbering Plan Areas (NPAs), are then further subdivided into Service Management Areas (SMAs), which are small geographic areas that represent a particular telephone exchange. Each number is then assigned a three-digit prefix, typically based on the geographical region in which the service is located. The 661 area code recognizes the region of Kern County, California, based on the telephone exchanges in the region.