The American 303 area code serves Denver and other 137 cities.
Primary City | Denver, CO |
Assigned | 99% |
Time Zone | Mountain |
Coordinates | 38.68685,-104.3348 |
City | Population | Percent of 303 | Percent of City |
---|---|---|---|
Acres Green, CO | 3007 | 0% | 100% |
Aetna Estates, CO | 834 | 0% | 100% |
Allenspark, CO | 528 | 0% | 100% |
Altona, CO | 501 | 0% | 100% |
Applewood, CO | 7160 | 0% | 100% |
Aristocrat Ranchettes, CO | 1344 | 0% | 100% |
Arvada, CO | 106433 | 1% | 100% |
Aspen Park, CO | 882 | 0% | 100% |
Aurora, CO | 325078 | 2% | 100% |
Bark Ranch, CO | 213 | 0% | 100% |
Bennett, CO | 2308 | 0% | 100% |
Berkley, CO | 11207 | 0% | 100% |
Black Hawk, CO | 118 | 0% | 100% |
Bonanza Mountain Estates, CO | 128 | 0% | 100% |
Boulder, CO | 97385 | 0% | 100% |
Bow Mar, CO | 866 | 0% | 100% |
Brick Center, CO | 107 | 0% | 100% |
Brighton, CO | 33352 | 0% | 100% |
Broomfield, CO | 55889 | 0% | 100% |
Byers, CO | 1160 | 0% | 100% |
Castle Pines, CO | 3614 | 0% | 100% |
Castle Pines North, CO | 10360 | 0% | 100% |
Castle Rock, CO | 48231 | 0% | 100% |
Centennial, CO | 100377 | 0% | 100% |
Central City, CO | 663 | 0% | 100% |
Cherry Creek, CO | 11120 | 0% | 100% |
Cherry Hills Village, CO | 5987 | 0% | 100% |
Coal Creek, CO | 2400 | 0% | 100% |
Columbine, CO | 24280 | 0% | 100% |
Columbine Valley, CO | 1256 | 0% | 100% |
Comanche Creek, CO | 369 | 0% | 100% |
Commerce City, CO | 45913 | 1% | 100% |
Crisman, CO | 186 | 0% | 100% |
Dacono, CO | 4152 | 0% | 100% |
Dakota Ridge, CO | 32005 | 0% | 100% |
Deer Trail, CO | 546 | 0% | 100% |
Denver, CO | 600158 | 2% | 100% |
Derby, CO | 7685 | 0% | 100% |
Dove Valley, CO | 5243 | 0% | 100% |
Downieville-Lawson-Dumont, CO | 594 | 0% | 100% |
East Pleasant View, CO | 356 | 0% | 100% |
Edgewater, CO | 5170 | 0% | 100% |
Elbert, CO | 230 | 0% | 100% |
Eldora, CO | 142 | 0% | 100% |
Eldorado Springs, CO | 585 | 0% | 100% |
Elizabeth, CO | 1358 | 0% | 100% |
Empire, CO | 282 | 0% | 100% |
Englewood, CO | 30255 | 0% | 100% |
Erie, CO | 18135 | 0% | 100% |
Evergreen, CO | 9038 | 0% | 100% |
Fairmount, CO | 7559 | 0% | 100% |
Federal Heights, CO | 11467 | 0% | 100% |
Firestone, CO | 10147 | 0% | 100% |
Floyd Hill, CO | 998 | 0% | 100% |
Fort Lupton, CO | 7377 | 0% | 100% |
Foxfield, CO | 685 | 0% | 100% |
Franktown, CO | 395 | 0% | 100% |
Frederick, CO | 8679 | 0% | 100% |
Genesee, CO | 3609 | 0% | 100% |
Georgetown, CO | 1034 | 0% | 100% |
Glendale, CO | 69 | 0% | 100% |
Glendale, CO | 4184 | 0% | 100% |
Gold Hill, CO | 230 | 0% | 100% |
Golden, CO | 18867 | 0% | 100% |
Grand View Estates, CO | 528 | 0% | 100% |
Greenwood Village, CO | 13925 | 0% | 100% |
Gunbarrel, CO | 9263 | 0% | 100% |
Hidden Lake, CO | 31 | 0% | 100% |
Highlands Ranch, CO | 96713 | 0% | 100% |
Holly Hills, CO | 2521 | 0% | 100% |
Hudson, CO | 2356 | 0% | 100% |
Idaho Springs, CO | 1717 | 0% | 100% |
Idledale, CO | 252 | 0% | 100% |
Indian Hills, CO | 1280 | 0% | 100% |
Inverness, CO | 1532 | 0% | 100% |
Jamestown, CO | 274 | 0% | 100% |
Keenesburg, CO | 1127 | 0% | 100% |
Ken Caryl, CO | 32438 | 0% | 100% |
Kiowa, CO | 723 | 0% | 100% |
Kittredge, CO | 1304 | 0% | 100% |
Lafayette, CO | 24453 | 0% | 100% |
Lakeside, CO | 8 | 0% | 100% |
Lakewood, CO | 142980 | 1% | 100% |
Larkspur, CO | 183 | 0% | 100% |
Lazy Acres, CO | 920 | 0% | 100% |
Leyner, CO | 29 | 0% | 100% |
Littleton, CO | 41737 | 0% | 100% |
Lochbuie, CO | 4726 | 0% | 100% |
Lone Tree, CO | 10218 | 0% | 100% |
Longmont, CO | 86270 | 0% | 100% |
Louisville, CO | 18376 | 0% | 100% |
Louviers, CO | 269 | 0% | 100% |
Lyons, CO | 2033 | 0% | 100% |
Mead, CO | 3405 | 0% | 9% |
Meridian, CO | 2970 | 0% | 100% |
Morrison, CO | 428 | 0% | 100% |
Mountain Meadows, CO | 274 | 0% | 100% |
Mountain View, CO | 507 | 0% | 100% |
Nederland, CO | 1445 | 0% | 100% |
Niwot, CO | 4006 | 0% | 100% |
North Washington, CO | 484 | 0% | 100% |
Northglenn, CO | 35789 | 0% | 100% |
Paragon Estates, CO | 928 | 0% | 100% |
Parker, CO | 45297 | 0% | 100% |
Peoria, CO | 163 | 0% | 100% |
Perry Park, CO | 1646 | 0% | 100% |
Pine Brook Hill, CO | 983 | 0% | 100% |
Ponderosa Park, CO | 3232 | 0% | 100% |
Rollinsville, CO | 181 | 0% | 100% |
Roxborough Park, CO | 9099 | 0% | 100% |
Sedalia, CO | 206 | 0% | 100% |
Seven Hills, CO | 121 | 0% | 100% |
Shaw Heights, CO | 5116 | 0% | 100% |
Sheridan, CO | 5664 | 0% | 100% |
Sherrelwood, CO | 18287 | 0% | 100% |
Silver Plume, CO | 170 | 0% | 100% |
St. Ann Highlands, CO | 288 | 0% | 100% |
St. Mary's, CO | 283 | 0% | 100% |
Stonegate, CO | 8962 | 0% | 100% |
Strasburg, CO | 2447 | 0% | 100% |
Sugarloaf, CO | 261 | 0% | 100% |
Sunshine, CO | 230 | 0% | 100% |
Superior, CO | 12483 | 0% | 100% |
Tall Timber, CO | 208 | 0% | 100% |
The Pinery, CO | 10517 | 0% | 100% |
Thornton, CO | 118772 | 1% | 100% |
Todd Creek, CO | 3768 | 0% | 100% |
Twin Lakes, CO | 6101 | 0% | 100% |
Upper Bear Creek, CO | 1059 | 0% | 100% |
Valmont, CO | 59 | 0% | 100% |
Ward, CO | 150 | 0% | 100% |
Watkins, CO | 653 | 0% | 100% |
Welby, CO | 14846 | 0% | 100% |
West Pleasant View, CO | 3840 | 0% | 100% |
Westcreek, CO | 129 | 0% | 100% |
Westminster, CO | 106114 | 0% | 100% |
Wheat Ridge, CO | 30166 | 0% | 100% |
The American area code 303 is one of the original 86 area codes created by AT&T and the Bell System in 1947. It originally served the entire state of Colorado. 303 was split in 1995 creating the need to update some of the phone numbers to area code 970. In 1998, area code 720 was created and is currently an overlay to 303. This area code now serves Denver and 137 other cities.
Yoder, CO
719-683-2626
19.53 mi.
Rush, CO
719-478-3855
27.06 mi.
Fountain, CO
719-382-4623
32.14 mi.
Colorado Springs, CO
719-390-3192
34.11 mi.
Colorado Springs, CO
719-638-1781
37.54 mi.
Calhan, CO
719-347-3269
38.79 mi.
Colorado Springs, CO
719-570-5380
39.44 mi.
Colorado Springs, CO
719-579-9617
39.82 mi.
Peyton, CO
719-749-2997
39.88 mi.
Colorado Springs, Colorado
1-888-880-0688
42.55 mi.
Pueblo, Colorado
1-888-737-1761
50.28 mi.
Canon City, Colorado
1-866-272-5728
82.8 mi.
La Junta, Colorado
1-888-221-0429
105.19 mi.
Littleton, Colorado
1-800-772-1213
114.19 mi.
Aurora, Colorado
1-800-772-1213
118.28 mi.
Denver, Colorado
1-800-772-1213
130.74 mi.
Lakewood, Colorado
1-800-772-1213
132.28 mi.
Boulder, Colorado
1-800-772-1213
167.38 mi.
13009 South Radio Station Road
Seneca
(864) 882-8698
1950.01 mi.
2133 Gentry Memorial Highway
Pickens
(864) 878-1396
1970.87 mi.
Greenville DMV Office - Saluda Dam
15 Saluda Dam Road
Greenville
(864) 241-1147
1989.02 mi.
331 Highway 29 Bypass North
Anderson
(864) 260-2205
1989.07 mi.
123 O'Neal St.
Belton
(864) 338-5114
1994.31 mi.
300 University Ridge Suite 105
Greenville
(864) 241-1145
1994.9 mi.
610 Arlington Road
Greer
(864) 801-9375
2007.38 mi.
1310 N. Main St.
Fountain Inn
(864) 967-4013
2014.52 mi.
1331 Haigler St
Abbeville
(864) 459-2147
2019.62 mi.