All Area Codes of 303

Colorado

Area Codes List: 303, 719, 720, 970

Prefix City Company Type Introduced
303747 Allenspark, CO Qwest Corporation Landline 02/04/1994
303214 Aurora, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303261 Aurora, CO Qwest Corporation Landline 02/04/1994
303283 Aurora, CO Qwest Corporation Landline 04/01/1997
303306 Aurora, CO Qwest Corporation Landline 04/15/1996
303317 Aurora, CO Qwest Corporation Landline 09/11/1994
303326 Aurora, CO Qwest Corporation Landline 01/11/1997
303337 Aurora, CO Qwest Corporation Landline 02/04/1994
303338 Aurora, CO Qwest Corporation Landline 02/04/1994
303340 Aurora, CO Qwest Corporation Landline 02/04/1994
303341 Aurora, CO Qwest Corporation Landline 02/04/1994
303342 Aurora, CO Qwest Corporation Landline 02/04/1994
303343 Aurora, CO Qwest Corporation Landline 02/04/1994
303344 Aurora, CO Qwest Corporation Landline 02/04/1994
303348 Aurora, CO Qwest Corporation Landline 02/04/1994
303360 Aurora, CO Qwest Corporation Landline 02/04/1994
303361 Aurora, CO Qwest Corporation Landline 02/04/1994
303363 Aurora, CO Qwest Corporation Landline 02/04/1994
303364 Aurora, CO Qwest Corporation Landline 02/04/1994
303365 Aurora, CO Qwest Corporation Landline 07/01/1996
303366 Aurora, CO Qwest Corporation Landline 02/04/1994
303367 Aurora, CO Qwest Corporation Landline 02/04/1994
303368 Aurora, CO Qwest Corporation Landline 02/04/1994
303369 Aurora, CO Qwest Corporation Landline 02/04/1994
303418 Aurora, CO Icg Telecom Group Landline 04/01/1997
303537 Aurora, CO Teleport Communications America Landline 01/11/1997
303557 Aurora, CO Global Crossing Local Services-co Landline 08/14/1998
303577 Aurora, CO Eschelon Telecom Of Colorado Landline 06/13/2000
303614 Aurora, CO Qwest Corporation Landline 02/11/1995
303636 Aurora, CO Qwest Corporation Landline 02/04/1994
303671 Aurora, CO Qwest Corporation Landline 02/04/1994
303676 Aurora, CO Qwest Corporation Landline 02/04/1994
303677 Aurora, CO Qwest Corporation Landline 10/15/1996
303695 Aurora, CO Qwest Corporation Landline 02/04/1994
303696 Aurora, CO Qwest Corporation Landline 02/04/1994
303724 Aurora, CO Qwest Corporation Landline 04/01/1997
303731 Aurora, CO Level 3 Communications Landline 04/01/1997
303739 Aurora, CO Qwest Corporation Landline 02/04/1994
303743 Aurora, CO Qwest Corporation Landline 02/04/1994
303745 Aurora, CO Qwest Corporation Landline 02/04/1994
303750 Aurora, CO Qwest Corporation Landline 02/04/1994
303751 Aurora, CO Qwest Corporation Landline 02/04/1994
303752 Aurora, CO Qwest Corporation Landline 02/04/1994
303755 Aurora, CO Qwest Corporation Landline 02/04/1994
303873 Aurora, CO Qwest Corporation Landline 01/11/1997
303644 Bennett, CO Eastern Slope Rural Telephone Association Landline 02/04/1994
303219 Brighton, CO Mcimetro Access Transmission Services LLC Landline 04/01/1997
303479 Brighton, CO Teleport Communications America Landline 01/25/1998
303498 Brighton, CO Comcast Phone Of Colorado Landline 04/22/2005
303558 Brighton, CO Global Crossing Local Services-co Landline 08/14/1998
303637 Brighton, CO Qwest Corporation Landline 02/04/1994
303654 Brighton, CO Qwest Corporation Landline 02/04/1994
303655 Brighton, CO Qwest Corporation Landline 07/01/1996
303659 Brighton, CO Qwest Corporation Landline 02/04/1994
303835 Brighton, CO Level 3 Communications Landline 01/11/1997
303822 Byers, CO Bijou Telephone Cooperative Association Landline 02/04/1994
303719 Deer Trail, CO Ymax Communications Corp. Landline 11/16/2006
303769 Deer Trail, CO Bijou Telephone Cooperative Association Landline 02/04/1994
303200 Denver, CO Teleport Communications America Landline 01/25/1998
303201 Denver, CO Usa Mobility Wireless Cell Number 09/11/1994
303202 Denver, CO Qwest Corporation Landline 09/11/1994
303203 Denver, CO American Messaging (am) Cell Number 01/25/1998
303204 Denver, CO Cellco Partnership DBA Verizon Wireless Cell Number 04/01/1997
303205 Denver, CO Qwest Corporation Landline 01/10/1996
303206 Denver, CO Usa Mobility Wireless Cell Number 04/15/1996
303207 Denver, CO Usa Mobility Wireless Cell Number 01/10/1996
303208 Denver, CO Usa Mobility Wireless Cell Number 02/11/1995
303209 Denver, CO Mcimetro Access Transmission Services LLC Landline 10/31/2001
303210 Denver, CO Sprint Spectrum L.p. Cell Number 04/01/1997
303212 Denver, CO Contact Paging Of Colorado Cell Number 02/11/1995
303213 Denver, CO Usa Mobility Wireless Cell Number 04/15/1996
303217 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303218 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303220 Denver, CO Qwest Corporation Landline 02/04/1994
303221 Denver, CO Qwest Corporation Landline 04/01/1997
303222 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303223 Denver, CO Global Crossing Local Services-co Landline 01/25/1998
303224 Denver, CO Qwest Corporation Landline 01/25/1998
303225 Denver, CO Global Crossing Local Services-co Landline 01/25/1998
303226 Denver, CO Icg Telecom Group Landline 01/25/1998
303227 Denver, CO Qwest Corporation Landline 10/15/1996
303228 Denver, CO Icg Telecom Group Landline 01/25/1998
303229 Denver, CO Cellco Partnership DBA Verizon Wireless Cell Number 01/11/1997
303230 Denver, CO Usa Mobility Wireless Cell Number 02/04/1994
303231 Denver, CO Qwest Corporation Landline 02/04/1994
303232 Denver, CO Qwest Corporation Landline 02/04/1994
303233 Denver, CO Qwest Corporation Landline 02/04/1994
303234 Denver, CO Qwest Corporation Landline 02/04/1994
303235 Denver, CO Qwest Corporation Landline 02/04/1994
303236 Denver, CO Qwest Corporation Landline 02/04/1994
303237 Denver, CO Qwest Corporation Landline 02/04/1994
303238 Denver, CO Qwest Corporation Landline 02/04/1994
303239 Denver, CO Qwest Corporation Landline 02/04/1994
303240 Denver, CO Usa Mobility Wireless Cell Number 04/01/1997
303241 Denver, CO Cellco Partnership DBA Verizon Wireless Cell Number 01/11/1997
303242 Denver, CO Mcimetro Access Transmission Services LLC Landline 04/01/1997
303243 Denver, CO N.e. Colorado Cellular Cell Number 04/01/1997
303244 Denver, CO Qwest Corporation Landline 01/25/1998
303245 Denver, CO Qwest Corporation Landline 01/25/1998
303246 Denver, CO Sprint Spectrum L.p. Cell Number 04/01/1997
303247 Denver, CO Qwest Corporation Landline 01/25/1998
303248 Denver, CO Teleport Communications America Landline 04/01/1997
303249 Denver, CO New Cingular Wireless PCS Cell Number 04/01/1997
303250 Denver, CO New Cingular Wireless PCS Cell Number 04/01/1997
303251 Denver, CO Usa Mobility Wireless Cell Number 02/04/1994
303252 Denver, CO Qwest Corporation Landline 02/04/1994
303253 Denver, CO Teleport Communications America Landline 04/01/1997
303254 Denver, CO Qwest Corporation Landline 02/04/1994
303255 Denver, CO Qwest Corporation Landline 02/04/1994
303256 Denver, CO Teleport Communications America Landline 04/01/1997
303257 Denver, CO Sprint Spectrum L.p. Cell Number 01/25/1998
303258 Denver, CO Qwest Corporation Landline 02/04/1994
303259 Denver, CO American Messaging (am) Cell Number 10/11/1997
303260 Denver, CO Qwest Corporation Landline 04/01/1997
303262 Denver, CO AT&T Local Landline 02/27/1999
303263 Denver, CO Cellco Partnership DBA Verizon Wireless Cell Number 09/11/1994
303264 Denver, CO Teleport Communications America Landline 04/01/1997
303265 Denver, CO Qwest Corporation Landline 04/01/1997
303266 Denver, CO Usa Mobility Wireless Cell Number 02/04/1994
303267 Denver, CO Qwest Corporation Landline 02/04/1994
303268 Denver, CO Icg Telecom Group Landline 04/01/1997
303269 Denver, CO Qwest Corporation Landline 06/30/2001
303270 Denver, CO Qwest Corporation Landline 02/04/1994
303272 Denver, CO Qwest Corporation Landline 01/25/1998
303274 Denver, CO Qwest Corporation Landline 02/04/1994
303275 Denver, CO Qwest Corporation Landline 02/04/1994
303276 Denver, CO Convergent Communications Landline 04/01/1997
303280 Denver, CO Qwest Corporation Landline 02/04/1994
303281 Denver, CO Qwest Corporation Landline 02/04/1994
303282 Denver, CO Qwest Corporation Landline 01/25/1998
303284 Denver, CO Comcast Phone Of Colorado Landline 10/13/1999
303285 Denver, CO Icg Telecom Group Landline 04/01/1997
303286 Denver, CO Qwest Corporation Landline 02/04/1994
303287 Denver, CO Qwest Corporation Landline 02/04/1994
303288 Denver, CO Qwest Corporation Landline 02/04/1994
303289 Denver, CO Qwest Corporation Landline 02/04/1994
303290 Denver, CO Qwest Corporation Landline 02/04/1994
303291 Denver, CO Qwest Corporation Landline 02/04/1994
303292 Denver, CO Qwest Corporation Landline 02/04/1994
303293 Denver, CO Qwest Corporation Landline 02/04/1994
303294 Denver, CO Qwest Corporation Landline 02/04/1994
303295 Denver, CO Qwest Corporation Landline 02/04/1994
303296 Denver, CO Qwest Corporation Landline 02/04/1994
303297 Denver, CO Qwest Corporation Landline 02/04/1994
303298 Denver, CO Qwest Corporation Landline 02/04/1994
303299 Denver, CO Qwest Corporation Landline 02/04/1994
303300 Denver, CO Qwest Corporation Landline 11/20/1998
303301 Denver, CO Icg Telecom Group Landline 04/01/1997
303302 Denver, CO Xo Colorado Landline 11/20/1998
303305 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303307 Denver, CO Qwest Corporation Landline 05/18/1998
303308 Denver, CO Qwest Corporation Landline 08/14/1998
303309 Denver, CO Global Crossing Local Services-co Landline 01/25/1998
303310 Denver, CO Contact Paging Of Colorado Cell Number 09/11/1994
303312 Denver, CO Qwest Corporation Landline 02/11/1995
303313 Denver, CO Qwest Corporation Landline 04/15/1996
303314 Denver, CO Qwest Corporation Landline 04/15/1996
303315 Denver, CO Qwest Corporation Landline 01/10/1996
303316 Denver, CO Qwest Corporation Landline 04/15/1996
303318 Denver, CO Qwest Corporation Landline 01/11/1997
303319 Denver, CO Elbert County Wireless Cell Number 08/12/2004
303320 Denver, CO Qwest Corporation Landline 02/04/1994
303321 Denver, CO Qwest Corporation Landline 02/04/1994
303322 Denver, CO Qwest Corporation Landline 02/04/1994
303323 Denver, CO Mcimetro Access Transmission Services LLC Landline 04/01/1997
303324 Denver, CO New Cingular Wireless PCS Cell Number 02/04/1994
303325 Denver, CO Icg Telecom Group Landline 04/01/1997
303327 Denver, CO Icg Telecom Group Landline 04/01/1997
303328 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303329 Denver, CO Qwest Corporation Landline 02/04/1994
303330 Denver, CO 360networks (usa) Inc. Landline 03/09/2006
303331 Denver, CO Qwest Corporation Landline 02/04/1994
303332 Denver, CO T-mobile Usa Cell Number 10/15/1996
303333 Denver, CO Qwest Corporation Landline 02/04/1994
303334 Denver, CO Mcimetro Access Transmission Services LLC Landline 04/01/1997
303335 Denver, CO Cellco Partnership DBA Verizon Wireless Landline 11/20/1998
303336 Denver, CO Qwest Corporation Landline 02/04/1994
303339 Denver, CO Cbeyond Communications Landline 12/15/2003
303345 Denver, CO Icg Telecom Group Landline 01/25/1998
303347 Denver, CO Qwest Corporation Landline 02/04/1994
303349 Denver, CO Cellco Partnership DBA Verizon Wireless Cell Number 10/15/1996
303350 Denver, CO New Cingular Wireless PCS Landline 10/13/1999
303352 Denver, CO Qwest Corporation Landline 01/25/1998
303353 Denver, CO Comcast Phone Of Colorado Landline 10/13/1999
303354 Denver, CO Teleport Communications America Landline 01/25/1998
303355 Denver, CO Qwest Corporation Landline 02/04/1994
303356 Denver, CO Sprint Spectrum L.p. Cell Number 01/25/1998
303357 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/25/1998
303358 Denver, CO Cellco Partnership DBA Verizon Wireless Cell Number 04/01/1997
303359 Denver, CO T-mobile Usa Cell Number 10/15/1996
303362 Denver, CO Teleport Communications America Landline 10/15/1996
303370 Denver, CO Qwest Corporation Landline 02/04/1994
303371 Denver, CO Qwest Corporation Landline 02/04/1994
303372 Denver, CO Qwest Corporation Landline 02/04/1994
303373 Denver, CO Qwest Corporation Landline 02/04/1994
303374 Denver, CO Teleport Communications America Landline 04/01/1997
303375 Denver, CO Qwest Corporation Landline 02/04/1994
303376 Denver, CO Icg Telecom Group Landline 04/01/1997
303377 Denver, CO Qwest Corporation Landline 02/04/1994
303378 Denver, CO New Cingular Wireless PCS Cell Number 02/04/1994
303379 Denver, CO Teleport Communications America Landline 04/01/1997
303380 Denver, CO Qwest Corporation Landline 04/01/1997
303381 Denver, CO Icg Telecom Group Landline 04/01/1997
303382 Denver, CO Qwest Corporation Landline 04/01/1997
303383 Denver, CO Qwest Corporation Landline 04/01/1997
303385 Denver, CO Icg Telecom Group Landline 01/25/1998
303386 Denver, CO Icg Telecom Group Landline 01/25/1998
303387 Denver, CO Mcleodusa Telecommunications Services- Co Landline 04/01/1997
303388 Denver, CO Qwest Corporation Landline 02/04/1994
303389 Denver, CO Qwest Corporation Landline 10/15/1996
303390 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303391 Denver, CO Qwest Corporation Landline 02/04/1994
303392 Denver, CO Contact Paging Of Colorado Cell Number 02/04/1994
303393 Denver, CO Qwest Corporation Landline 02/04/1994
303394 Denver, CO Qwest Corporation Landline 02/04/1994
303395 Denver, CO Global Crossing Local Services-co Landline 01/25/1998
303396 Denver, CO Live Wire Networks Landline 06/01/2005
303397 Denver, CO Qwest Corporation Landline 02/04/1994
303398 Denver, CO Qwest Corporation Landline 02/04/1994
303399 Denver, CO Qwest Corporation Landline 02/04/1994
303400 Denver, CO Qwest Corporation Landline 11/20/1998
303401 Denver, CO Qwest Corporation Landline 04/01/1997
303402 Denver, CO Qwest Corporation Landline 04/15/1996
303403 Denver, CO Qwest Corporation Landline 04/15/1996
303404 Denver, CO Qwest Corporation Landline 04/15/1996
303405 Denver, CO Qwest Corporation Landline 04/15/1996
303406 Denver, CO Icg Telecom Group Landline 07/06/1997
303407 Denver, CO Cbeyond Communications Landline 05/18/1998
303408 Denver, CO New Cingular Wireless PCS Landline 04/01/1997
303409 Denver, CO Icg Telecom Group Landline 04/01/1997
303410 Denver, CO Qwest Corporation Landline 04/01/1997
303412 Denver, CO Qwest Corporation Landline 01/10/1996
303413 Denver, CO Qwest Corporation Landline 07/04/1995
303414 Denver, CO Icg Telecom Group Landline 02/11/1995
303415 Denver, CO Qwest Corporation Landline 02/11/1995
303416 Denver, CO Global Crossing Local Services-co Landline 01/25/1998
303417 Denver, CO Qwest Corporation Landline 07/04/1995
303419 Denver, CO Sprint Spectrum L.p. Cell Number 09/11/1994
303420 Denver, CO Qwest Corporation Landline 02/04/1994
303421 Denver, CO Qwest Corporation Landline 02/04/1994
303422 Denver, CO Qwest Corporation Landline 02/04/1994
303423 Denver, CO Qwest Corporation Landline 02/04/1994
303424 Denver, CO Qwest Corporation Landline 02/04/1994
303425 Denver, CO Qwest Corporation Landline 02/04/1994
303426 Denver, CO Qwest Corporation Landline 02/04/1994
303427 Denver, CO Qwest Corporation Landline 02/04/1994
303428 Denver, CO Qwest Corporation Landline 02/04/1994
303429 Denver, CO Qwest Corporation Landline 02/04/1994
303430 Denver, CO Qwest Corporation Landline 02/04/1994
303431 Denver, CO Qwest Corporation Landline 02/04/1994
303432 Denver, CO Qwest Corporation Landline 10/15/1996
303433 Denver, CO Qwest Corporation Landline 02/04/1994
303434 Denver, CO Sprint Spectrum L.p. Cell Number 01/25/1998
303435 Denver, CO Sprint Spectrum L.p. Cell Number 04/01/1997
303436 Denver, CO Qwest Corporation Landline 02/04/1994
303437 Denver, CO Sprint Spectrum L.p. Cell Number 10/15/1996
303438 Denver, CO Qwest Corporation Landline 02/04/1994
303439 Denver, CO Qwest Corporation Landline 09/11/1994
303440 Denver, CO Qwest Corporation Landline 02/04/1994
303441 Denver, CO Qwest Corporation Landline 02/04/1994
303442 Denver, CO Qwest Corporation Landline 02/04/1994
303443 Denver, CO Qwest Corporation Landline 02/04/1994
303444 Denver, CO Qwest Corporation Landline 02/04/1994
303445 Denver, CO Qwest Corporation Landline 07/01/1996
303446 Denver, CO Qwest Corporation Landline 02/04/1994
303447 Denver, CO Qwest Corporation Landline 02/04/1994
303448 Denver, CO Qwest Corporation Landline 07/01/1996
303449 Denver, CO Qwest Corporation Landline 02/04/1994
303450 Denver, CO Qwest Corporation Landline 02/04/1994
303451 Denver, CO Qwest Corporation Landline 02/04/1994
303452 Denver, CO Qwest Corporation Landline 02/04/1994
303453 Denver, CO Qwest Corporation Landline 01/25/1998
303454 Denver, CO Qwest Corporation Landline 04/01/1997
303455 Denver, CO Qwest Corporation Landline 02/04/1994
303456 Denver, CO Qwest Corporation Landline 02/04/1994
303457 Denver, CO Qwest Corporation Landline 02/04/1994
303458 Denver, CO Qwest Corporation Landline 02/04/1994
303459 Denver, CO Qwest Corporation Landline 02/04/1994
303460 Denver, CO Qwest Corporation Landline 02/04/1994
303461 Denver, CO Usa Mobility Wireless Cell Number 02/04/1994
303462 Denver, CO Qwest Corporation Landline 09/11/1994
303463 Denver, CO Qwest Corporation Landline 04/01/1997
303464 Denver, CO Qwest Corporation Landline 10/15/1996
303465 Denver, CO Qwest Corporation Landline 02/04/1994
303466 Denver, CO Qwest Corporation Landline 02/04/1994
303467 Denver, CO Qwest Corporation Landline 02/04/1994
303468 Denver, CO Cbeyond Communications Landline 05/24/2001
303469 Denver, CO Qwest Corporation Landline 02/04/1994
303472 Denver, CO Sprint Spectrum L.p. Cell Number 09/11/1994
303473 Denver, CO Qwest Corporation Landline 02/04/1994
303474 Denver, CO Teleport Communications America Landline 04/01/1997
303475 Denver, CO New Cingular Wireless PCS Cell Number 02/04/1994
303476 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/25/1998
303477 Denver, CO Qwest Corporation Landline 02/04/1994
303478 Denver, CO New Cingular Wireless PCS Cell Number 02/04/1994
303480 Denver, CO Qwest Corporation Landline 02/04/1994
303481 Denver, CO Mcimetro Access Transmission Services LLC Landline 01/11/1997
303482 Denver, CO Global Crossing Local Services-co Landline 01/25/1998
303483 Denver, CO Icg Telecom Group Landline 01/25/1998
303484 Denver, CO Teleport Communications America Landline 01/25/1998

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