Geographic Regions and Area Codes

Area code 442 is located in the state of California and serves a significant portion of southeastern and southernmost California. This includes Imperial, Inyo, and Mono counties, as well as parts of North County San Diego, Riverside, San Bernardino, Los Angeles, and Kern counties. The area code covers a diverse landscape, embracing counties like Imperial, Inyo, Mono, and portions of San Diego, Riverside, San Bernardino, Los Angeles, and Kern.

Key regions within Area Code 442 include:

  • San Bernardino
  • Oceanside
  • Escondido

Area code 442 is an overlay for area code 760 and serves the same geographic regions. It touches eight counties, including San Bernardino, San Diego, Riverside, Kern, Imperial, Tulare, Inyo, and Mono.