Area Code 303

 

Colorado area code 303 has been in service since 1947. It has 633 landlines and 139 wireless prefixes (exchanges) serviced by 43 carriers. It covers 14 counties, 680 ZIP codes, and 75 cities, including Denver, Aurora, Littleton, Lakewood, Arvada, Boulder, Longmont, Centennial, and Broomfield.

State:
Colorado
Time Zone:
Mountain (8:59 pm)

Area Code (303) has 772 prefixes

Prefix County City Company/Carrier Line Type
(303) 200- Jefferson Denver Teleport Communications Gro... Landline
(303) 201- Boulder Boulder Metrocall Landline
(303) 202- Jefferson Denver Qwest Corporation Landline
(303) 203- Adams Denver American Messaging (am), Inc. Cell Phone
(303) 204- Jefferson Bow Mar Cellco Partnership Dba Veri... Cell Phone
(303) 205- Jefferson Denver Qwest Corporation Landline
(303) 206- Arapahoe Centennial Metrocall Landline
(303) 207- Jefferson Bow Mar Metrocall Landline
(303) 209- Denver Denver Mcimetro, Ats, Inc. Landline
(303) 210- Denver Denver Nextel Communications, Inc. Cell Phone
(303) 212- Clear Creek Idaho Springs Contact Paging Of Colorado,... Cell Phone
(303) 214- Arapahoe Aurora Mcimetro, Ats, Inc. Landline
(303) 215- Jefferson Evergreen Qwest Corporation Landline
(303) 216- Jefferson Evergreen Qwest Corporation Landline
(303) 217- Denver Denver Mcimetro, Ats, Inc. Landline
(303) 218- Arapahoe Centennial Mcimetro, Ats, Inc. Landline
(303) 219- Adams Brighton Mcimetro, Ats, Inc. Landline
(303) 220- Arapahoe Centennial Qwest Corporation Landline
(303) 221- Arapahoe Centennial Qwest Corporation Landline
(303) 222- Arapahoe Centennial Mcimetro, Ats, Inc. Landline
(303) 223- Denver Denver Global Crossing Local Servi... Landline
(303) 224- Arapahoe Centennial Qwest Corporation Landline
(303) 225- Denver Denver Global Crossing Local Servi... Landline
(303) 226- Denver Denver Icg Telecom Group - Co Landline
(303) 227- Adams Adams City Qwest Corporation Landline
(303) 228- Arapahoe Centennial Icg Telecom Group - Co Landline
(303) 229- Denver Denver Cellco Partnership Dba Veri... Cell Phone
(303) 230- Denver Aurora Metrocall Landline
(303) 231- Jefferson Denver Qwest Corporation Landline
(303) 232- Jefferson Denver Qwest Corporation Landline
(303) 233- Jefferson Denver Qwest Corporation Landline
(303) 234- Jefferson Denver Qwest Corporation Landline
(303) 235- Jefferson Denver Qwest Corporation Landline
(303) 236- Jefferson Denver Qwest Corporation Landline
(303) 237- Jefferson Denver Qwest Corporation Landline
(303) 238- Jefferson Denver Qwest Corporation Landline
(303) 239- Jefferson Denver Qwest Corporation Landline
(303) 240- Jefferson Evergreen Metrocall Landline
(303) 241- Denver Denver Cellco Partnership Dba Veri... Cell Phone
(303) 242- Denver Denver Mcimetro, Ats, Inc. Landline
(303) 243- Denver Denver Cellular One Of Ne Colorado Cell Phone
(303) 244- Denver Denver Qwest Corporation Landline
(303) 245- Boulder Boulder Qwest Corporation Landline
(303) 246- Jefferson Bow Mar Sprint Spectrum L.p. Cell Phone
(303) 247- Boulder Boulder Qwest Corporation Landline
(303) 248- Jefferson Denver Teleport Communications Gro... Landline
(303) 249- Denver Denver Blue Licenses Holding, Llc Cell Phone
(303) 250- Arapahoe Aurora Blue Licenses Holding, Llc Cell Phone
(303) 251- Arapahoe Cherry Hills Metrocall Landline
(303) 252- Adams Denver Qwest Corporation Landline
(303) 253- Adams Denver Teleport Communications Gro... Landline
(303) 254- Adams Denver Qwest Corporation Landline
(303) 255- Adams Denver Qwest Corporation Landline
(303) 256- Jefferson Denver Teleport Communications Gro... Landline
(303) 257- Denver Denver Sprint Spectrum L.p. Cell Phone
(303) 258- Boulder Nederland Qwest Corporation Landline
(303) 259- Arapahoe Aurora American Messaging (am), Inc. Cell Phone
(303) 260- Denver Denver Qwest Corporation Landline
(303) 261- Adams Watkins Qwest Corporation Landline
(303) 262- Denver Denver At&t Local Landline
(303) 263- Jefferson Bow Mar Cellco Partnership Dba Veri... Cell Phone
(303) 264- Arapahoe Centennial Teleport Communications Gro... Landline
(303) 265- Arapahoe Centennial Qwest Corporation Landline
(303) 266- Arapahoe Centennial Metrocall Landline
(303) 267- Arapahoe Centennial Qwest Corporation Landline
(303) 268- Arapahoe Centennial Icg Telecom Group - Co Landline
(303) 269- Arapahoe Aurora Qwest Corporation Landline
(303) 270- Denver Denver Qwest Corporation Landline
(303) 271- Jefferson Evergreen Qwest Corporation Landline
(303) 272- Denver Denver Qwest Corporation Landline
(303) 273- Jefferson Evergreen Qwest Corporation Landline
(303) 274- Jefferson Denver Qwest Corporation Landline
(303) 275- Jefferson Denver Qwest Corporation Landline
(303) 276- Arapahoe Aurora Convergent Communications, ... Landline
(303) 277- Jefferson Evergreen Qwest Corporation Landline
(303) 278- Jefferson Evergreen Qwest Corporation Landline
(303) 279- Jefferson Evergreen Qwest Corporation Landline
(303) 280- Adams Denver Qwest Corporation Landline
(303) 281- Denver Denver Qwest Corporation Landline
(303) 282- Denver Denver Qwest Corporation Landline
(303) 283- Arapahoe Aurora Qwest Corporation Landline
(303) 284- Denver Denver Mediaone Telecomm Corp., Db... Landline
(303) 285- Denver Denver Icg Telecom Group - Co Landline
(303) 286- Adams Adams City Qwest Corporation Landline
(303) 287- Adams Adams City Qwest Corporation Landline
(303) 288- Adams Adams City Qwest Corporation Landline
(303) 289- Adams Adams City Qwest Corporation Landline
(303) 290- Arapahoe Centennial Qwest Corporation Landline
(303) 291- Denver Denver Qwest Corporation Landline
(303) 292- Denver Denver Qwest Corporation Landline
(303) 293- Denver Denver Qwest Corporation Landline
(303) 294- Denver Denver Qwest Corporation Landline
(303) 295- Denver Denver Qwest Corporation Landline
(303) 296- Denver Denver Qwest Corporation Landline
(303) 297- Denver Denver Qwest Corporation Landline
(303) 298- Denver Denver Qwest Corporation Landline
(303) 299- Denver Denver Qwest Corporation Landline
(303) 300- Denver Denver Qwest Corporation Landline
(303) 301- Adams Denver Icg Telecom Group - Co Landline
(303) 302- Denver Denver Xo Colorado, Llc Landline