EntityQ3150225· pop 5· linked from 383 articlesarea code 530Sign in to savearea code for parts of northern CaliforniaConnectionsNorth American Numbering PlanEntityarea code 209EntityArea code 702EntityCaliforniaEntityNevadaEntityOregonEntitygeographic coordinate systemEntitySacramentoEntitySierra NevadaEntityEl Dorado CountyEntitytelephone numbering planEntitySiskiyou CountyEntityHumboldt CountyEntityAlpine CountyEntityMono CountyEntityShasta CountyEntityButte CountyEntityLassen CountyEntityNevada CountyEntityChicoEntityCategories1997 establishments in CaliforniaAlpine County, CaliforniaArea codes in CaliforniaArea codes in the United StatesButte County, CaliforniaColusa County, CaliforniaEl Dorado County, CaliforniaGlenn County, CaliforniaHumboldt County, CaliforniaLassen County, CaliforniaModoc County, CaliforniaNevada County, California