EntityQ4788601· pop 5· linked from 318 articlesarea code 660Sign in to saveTelephone area code for northern and western Missouri, United StatesConnectionsNorth American Numbering PlanEntityKansasEntityMissouriEntityIowaEntityNebraskaEntitymobile phoneEntitygeographic coordinate systemEntitySt. LouisEntityU.S. stateEntityJefferson CityEntityColumbiaEntitytelephone numbering planEntitySt. JosephEntitySedaliaEntityWarrensburgEntityKirksvilleEntityMaryvilleEntityBoonvilleEntityButlerEntityLexingtonEntityCategoriesArea codes in MissouriArea codes in the United States