Area Code Details for: 303

Location

State

Colorado

Country

US

Map

Details

State
Colorado (CO)
Time Zone
Parent NPA
-
Relief Planning in Progress
No
In Service Date
January 1, 1947

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Cities

ZipcodeCityCounty
80444GeorgetownClear Creek
80448GrantPark
80452Idaho SpringsClear Creek
80439EvergreenJefferson
80436DumontClear Creek
80437EvergreenJefferson
80438EmpireClear Creek
80465MorrisonJefferson
80466NederlandBoulder
80470PineJefferson
80457KittredgeJefferson
80453IdledaleJefferson
80454Indian HillsJefferson
80455JamestownBoulder
80433ConiferJefferson
80314BoulderBoulder
80401GoldenJefferson
80402GoldenJefferson
80310BoulderBoulder
80307BoulderBoulder
80308BoulderBoulder
80309BoulderBoulder
80423BondEagle
80425Buffalo CreekJefferson
80427Central CityGilpin
80422Black HawkGilpin
80403GoldenJefferson
80419GoldenJefferson
80421BaileyPark
80471PinecliffeBoulder
80603BrightonWeld
80603LochbuieWeld
80614EastlakeAdams
80602BrightonAdams
80540LyonsBoulder
80544NiwotBoulder
80601BrightonAdams
80652RoggenWeld
80732HerefordWeld
80749SedgwickSedgwick
80643KeenesburgWeld
80621Fort LuptonWeld
80640HendersonAdams
80642HudsonWeld
80533HygieneBoulder
80501LongmontBoulder
80502LongmontBoulder
80503LongmontBoulder
80481WardBoulder
80474RollinsvilleGilpin
80475ShawneePark
80476Silver PlumeClear Creek
80516FrederickBoulder
80520FirestoneWeld
80530FrederickWeld
80516ErieBoulder
80504LongmontWeld
80510AllensparkLarimer
80514DaconoWeld
80109Castle RockDouglas
80110EnglewoodArapahoe
80107ElizabethElbert
80108Castle RockDouglas
80111EnglewoodArapahoe
80116FranktownDouglas
80117KiowaElbert
80112EnglewoodArapahoe
80113EnglewoodArapahoe
80106ElbertEl Paso
80045AuroraAdams
80046AuroraArapahoe
80042AuroraAdams
80044AuroraArapahoe
80047AuroraArapahoe
80104Castle RockDouglas
80105Deer TrailArapahoe
80102BennettAdams
80103ByersArapahoe
80118LarkspurDouglas
80131LouviersDouglas
80134ParkerDouglas
80129LittletonDouglas
80130LittletonDouglas
80135SedaliaDouglas
80138ParkerDouglas
80150EnglewoodArapahoe
80136StrasburgAdams
80137WatkinsAdams
80128LittletonJefferson
80122LittletonArapahoe
80123LittletonJefferson
80120LittletonArapahoe
80121LittletonArapahoe
80124Lone TreeDouglas
80126LittletonDouglas
80127LittletonJefferson
80124LittletonDouglas
80125LittletonDouglas
80041AuroraArapahoe
80014AuroraArapahoe
80015AuroraArapahoe
80012AuroraArapahoe
80013AuroraArapahoe
80016AuroraArapahoe
80019AuroraAdams
80020BroomfieldBroomfield
80017AuroraArapahoe
80018AuroraArapahoe
80011AuroraAdams
80003ArvadaJefferson
80004ArvadaJefferson
80001ArvadaJefferson
80002ArvadaJefferson
80005ArvadaJefferson
80010AuroraArapahoe
80011AuroraArapahoe
80006ArvadaJefferson
80007ArvadaJefferson
80020WestminsterBroomfield
80033Wheat RidgeJefferson
80034Wheat RidgeJefferson
80030WestminsterAdams
80031WestminsterAdams
80035WestminsterAdams
80038BroomfieldBroomfield
80040AuroraAdams
80036WestminsterAdams
80037Commerce CityAdams
80027LouisvilleBoulder
80021WestminsterBroomfield
80022Commerce CityAdams
80021BroomfieldJefferson
80021BroomfieldJefferson
80023BroomfieldBroomfield
80025Eldorado SpringsBoulder
80026LafayetteBoulder
80023WestminsterBroomfield
80024DupontAdams
80248DenverDenver
80249DenverDenver
80246DenverDenver
80247DenverArapahoe
80250DenverDenver
80259DenverDenver
80260DenverAdams
80256DenverDenver
80257DenverDenver
80243DenverDenver
80235DenverJefferson
80235LakewoodJefferson
80233DenverAdams
80234DenverAdams
80236DenverDenver
80239DenverDenver
80241ThorntonAdams
80237DenverDenver
80238DenverDenver
80261DenverDenver
80299DenverDenver
80301BoulderBoulder
80293DenverDenver
80294DenverDenver
80302BoulderBoulder
80305BoulderBoulder
80306BoulderBoulder
80303BoulderBoulder
80304BoulderBoulder
80291DenverDenver
80265DenverDenver
80266DenverDenver
80263DenverDenver
80264DenverDenver
80271DenverDenver
80281DenverDenver
80290DenverDenver
80273DenverDenver
80274DenverDenver
80232DenverJefferson
80205DenverDenver
80206DenverDenver
80203DenverDenver
80204DenverDenver
80207DenverDenver
80210DenverDenver
80211DenverDenver
80208DenverDenver
80209DenverDenver
80202DenverDenver
80160LittletonArapahoe
80161LittletonArapahoe
80151EnglewoodArapahoe
80155EnglewoodArapahoe
80162LittletonJefferson
80166LittletonArapahoe
80201DenverDenver
80163LittletonDouglas
80165LittletonArapahoe
80212DenverDenver
80226DenverJefferson
80227DenverJefferson
80224DenverDenver
80225DenverJefferson
80227LakewoodJefferson
80230DenverDenver
80231DenverDenver
80228DenverJefferson
80229DenverAdams
80223DenverDenver
80216DenverDenver
80217DenverDenver
80214DenverJefferson
80215DenverJefferson
80218DenverDenver
80221DenverAdams
80222DenverDenver
80219DenverDenver
80220DenverDenver
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