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
Zipcode | City | County |
---|---|---|
80444 | Georgetown | Clear Creek |
80448 | Grant | Park |
80452 | Idaho Springs | Clear Creek |
80439 | Evergreen | Jefferson |
80436 | Dumont | Clear Creek |
80437 | Evergreen | Jefferson |
80438 | Empire | Clear Creek |
80465 | Morrison | Jefferson |
80466 | Nederland | Boulder |
80470 | Pine | Jefferson |
80457 | Kittredge | Jefferson |
80453 | Idledale | Jefferson |
80454 | Indian Hills | Jefferson |
80455 | Jamestown | Boulder |
80433 | Conifer | Jefferson |
80314 | Boulder | Boulder |
80401 | Golden | Jefferson |
80402 | Golden | Jefferson |
80310 | Boulder | Boulder |
80307 | Boulder | Boulder |
80308 | Boulder | Boulder |
80309 | Boulder | Boulder |
80423 | Bond | Eagle |
80425 | Buffalo Creek | Jefferson |
80427 | Central City | Gilpin |
80422 | Black Hawk | Gilpin |
80403 | Golden | Jefferson |
80419 | Golden | Jefferson |
80421 | Bailey | Park |
80471 | Pinecliffe | Boulder |
80603 | Brighton | Weld |
80603 | Lochbuie | Weld |
80614 | Eastlake | Adams |
80602 | Brighton | Adams |
80540 | Lyons | Boulder |
80544 | Niwot | Boulder |
80601 | Brighton | Adams |
80652 | Roggen | Weld |
80732 | Hereford | Weld |
80749 | Sedgwick | Sedgwick |
80643 | Keenesburg | Weld |
80621 | Fort Lupton | Weld |
80640 | Henderson | Adams |
80642 | Hudson | Weld |
80533 | Hygiene | Boulder |
80501 | Longmont | Boulder |
80502 | Longmont | Boulder |
80503 | Longmont | Boulder |
80481 | Ward | Boulder |
80474 | Rollinsville | Gilpin |
80475 | Shawnee | Park |
80476 | Silver Plume | Clear Creek |
80516 | Frederick | Boulder |
80520 | Firestone | Weld |
80530 | Frederick | Weld |
80516 | Erie | Boulder |
80504 | Longmont | Weld |
80510 | Allenspark | Larimer |
80514 | Dacono | Weld |
80109 | Castle Rock | Douglas |
80110 | Englewood | Arapahoe |
80107 | Elizabeth | Elbert |
80108 | Castle Rock | Douglas |
80111 | Englewood | Arapahoe |
80116 | Franktown | Douglas |
80117 | Kiowa | Elbert |
80112 | Englewood | Arapahoe |
80113 | Englewood | Arapahoe |
80106 | Elbert | El Paso |
80045 | Aurora | Adams |
80046 | Aurora | Arapahoe |
80042 | Aurora | Adams |
80044 | Aurora | Arapahoe |
80047 | Aurora | Arapahoe |
80104 | Castle Rock | Douglas |
80105 | Deer Trail | Arapahoe |
80102 | Bennett | Adams |
80103 | Byers | Arapahoe |
80118 | Larkspur | Douglas |
80131 | Louviers | Douglas |
80134 | Parker | Douglas |
80129 | Littleton | Douglas |
80130 | Littleton | Douglas |
80135 | Sedalia | Douglas |
80138 | Parker | Douglas |
80150 | Englewood | Arapahoe |
80136 | Strasburg | Adams |
80137 | Watkins | Adams |
80128 | Littleton | Jefferson |
80122 | Littleton | Arapahoe |
80123 | Littleton | Jefferson |
80120 | Littleton | Arapahoe |
80121 | Littleton | Arapahoe |
80124 | Lone Tree | Douglas |
80126 | Littleton | Douglas |
80127 | Littleton | Jefferson |
80124 | Littleton | Douglas |
80125 | Littleton | Douglas |
80041 | Aurora | Arapahoe |
80014 | Aurora | Arapahoe |
80015 | Aurora | Arapahoe |
80012 | Aurora | Arapahoe |
80013 | Aurora | Arapahoe |
80016 | Aurora | Arapahoe |
80019 | Aurora | Adams |
80020 | Broomfield | Broomfield |
80017 | Aurora | Arapahoe |
80018 | Aurora | Arapahoe |
80011 | Aurora | Adams |
80003 | Arvada | Jefferson |
80004 | Arvada | Jefferson |
80001 | Arvada | Jefferson |
80002 | Arvada | Jefferson |
80005 | Arvada | Jefferson |
80010 | Aurora | Arapahoe |
80011 | Aurora | Arapahoe |
80006 | Arvada | Jefferson |
80007 | Arvada | Jefferson |
80020 | Westminster | Broomfield |
80033 | Wheat Ridge | Jefferson |
80034 | Wheat Ridge | Jefferson |
80030 | Westminster | Adams |
80031 | Westminster | Adams |
80035 | Westminster | Adams |
80038 | Broomfield | Broomfield |
80040 | Aurora | Adams |
80036 | Westminster | Adams |
80037 | Commerce City | Adams |
80027 | Louisville | Boulder |
80021 | Westminster | Broomfield |
80022 | Commerce City | Adams |
80021 | Broomfield | Jefferson |
80021 | Broomfield | Jefferson |
80023 | Broomfield | Broomfield |
80025 | Eldorado Springs | Boulder |
80026 | Lafayette | Boulder |
80023 | Westminster | Broomfield |
80024 | Dupont | Adams |
80248 | Denver | Denver |
80249 | Denver | Denver |
80246 | Denver | Denver |
80247 | Denver | Arapahoe |
80250 | Denver | Denver |
80259 | Denver | Denver |
80260 | Denver | Adams |
80256 | Denver | Denver |
80257 | Denver | Denver |
80243 | Denver | Denver |
80235 | Denver | Jefferson |
80235 | Lakewood | Jefferson |
80233 | Denver | Adams |
80234 | Denver | Adams |
80236 | Denver | Denver |
80239 | Denver | Denver |
80241 | Thornton | Adams |
80237 | Denver | Denver |
80238 | Denver | Denver |
80261 | Denver | Denver |
80299 | Denver | Denver |
80301 | Boulder | Boulder |
80293 | Denver | Denver |
80294 | Denver | Denver |
80302 | Boulder | Boulder |
80305 | Boulder | Boulder |
80306 | Boulder | Boulder |
80303 | Boulder | Boulder |
80304 | Boulder | Boulder |
80291 | Denver | Denver |
80265 | Denver | Denver |
80266 | Denver | Denver |
80263 | Denver | Denver |
80264 | Denver | Denver |
80271 | Denver | Denver |
80281 | Denver | Denver |
80290 | Denver | Denver |
80273 | Denver | Denver |
80274 | Denver | Denver |
80232 | Denver | Jefferson |
80205 | Denver | Denver |
80206 | Denver | Denver |
80203 | Denver | Denver |
80204 | Denver | Denver |
80207 | Denver | Denver |
80210 | Denver | Denver |
80211 | Denver | Denver |
80208 | Denver | Denver |
80209 | Denver | Denver |
80202 | Denver | Denver |
80160 | Littleton | Arapahoe |
80161 | Littleton | Arapahoe |
80151 | Englewood | Arapahoe |
80155 | Englewood | Arapahoe |
80162 | Littleton | Jefferson |
80166 | Littleton | Arapahoe |
80201 | Denver | Denver |
80163 | Littleton | Douglas |
80165 | Littleton | Arapahoe |
80212 | Denver | Denver |
80226 | Denver | Jefferson |
80227 | Denver | Jefferson |
80224 | Denver | Denver |
80225 | Denver | Jefferson |
80227 | Lakewood | Jefferson |
80230 | Denver | Denver |
80231 | Denver | Denver |
80228 | Denver | Jefferson |
80229 | Denver | Adams |
80223 | Denver | Denver |
80216 | Denver | Denver |
80217 | Denver | Denver |
80214 | Denver | Jefferson |
80215 | Denver | Jefferson |
80218 | Denver | Denver |
80221 | Denver | Adams |
80222 | Denver | Denver |
80219 | Denver | Denver |
80220 | Denver | Denver |

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