923
- 92301 Adelanto
- 92304 Amboy
- 92305 Angelus Oaks
- 92307 Apple Valley
- 92308 Apple Valley
- 92309 Baker
- 92310 Fort Irwin
- 92311 Barstow
- 92313 Grand Terrace
- 92314 Big Bear City
- 92315 Big Bear Lake
- 92316 Bloomington
- 92320 Calimesa
- 92321 Cedar Glen
- 92322 Cedarpines Park
- 92324 Colton
- 92325 Crestline
- 92327 Daggett
- 92328 Death Valley
- 92332 Essex
- 92333 Fawnskin
- 92335 Fontana
- 92336 Fontana
- 92337 Fontana
- 92338 Ludlow
- 92339 Forest Falls
- 92341 Green Valley Lake
- 92342 Helendale
- 92344 Hesperia
- 92345 Hesperia
- 92346 Highland
- 92347 Hinkley
- 92352 Lake Arrowhead
- 92354 Loma Linda
- 92356 Lucerne Valley
- 92358 Lytle Creek
- 92359 Mentone
- 92363 Needles
- 92364 Nipton
- 92365 Newberry Springs
- 92368 Oro Grande
- 92371 Phelan
- 92372 Pinon Hills
- 92373 Redlands
- 92374 Redlands
- 92376 Rialto
- 92377 Rialto
- 92378 Rimforest
- 92382 Running Springs
- 92384 Shoshone
- 92385 Skyforest
- 92386 Sugarloaf
- 92389 Tecopa
- 92391 Twin Peaks
- 92392 Victorville
- 92394 Victorville
- 92395 Victorville
- 92397 Wrightwood
- 92398 Yermo
- 92399 Yucaipa