720
Denver, Colorado
Colorado · Mountain (UTC-7) · — · 18 cities
Cities Served by Area Code 720 (18 cities)
Additional Details
Established
2001
Type
Overlay
Active Prefixes
800
Wireless Lines
45%
About Area Code 720
Area code 720 was introduced in 2001 as an overlay code, sharing the same geographic region as an existing area code to meet growing demand for phone numbers in the Denver area. The area is in the Mountain time zone. It covers 18 cities and communities including Arvada, Aurora, Boulder, Brighton, Broomfield and 13 more.
Phone Number Prefixes in Area Code 720
800 active NXX prefixes — 45% wireless, 55% landline. Each prefix (NXX) represents up to 10,000 phone numbers.
T-Mobile 132 (16%)CenturyLink 107 (13%)AT&T Mobility 91 (11%)Verizon Wireless 74 (9%)Lumen/Level 3 63 (8%)
| Prefix | Carrier | Type | Rate Center |
|---|---|---|---|
| 720-200 | CenturyLink | Landline | Denver |
| 720-201 | AT&T Mobility | Wireless | Denver |
| 720-202 | Verizon Wireless | Wireless | Denver |
| 720-203 | T-Mobile | Wireless | Denver |
| 720-204 | Lumen/Level 3 | Landline | Longmont |
| 720-205 | T-Mobile | Wireless | Denver |
| 720-206 | MCI/Verizon | Wireless | Denver |
| 720-207 | MCI/Verizon | Wireless | Denver |
| 720-208 | MCI/Verizon | Wireless | Denver |
| 720-209 | T-Mobile | Wireless | Denver |
| 720-210 | MCI/Verizon | Wireless | Denver |
| 720-211 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-212 | MCI/Verizon | Wireless | Denver |
| 720-213 | Paetec Itel | Landline | Denver |
| 720-214 | Paetec Itel | Landline | Denver |
| 720-215 | Verizon Wireless | Wireless | Denver |
| 720-216 | Teleport Communications America | Landline | Denver |
| 720-217 | T-Mobile | Wireless | Denver |
| 720-218 | T-Mobile | Wireless | Denver |
| 720-219 | Verizon Wireless | Wireless | Denver |
| 720-220 | T-Mobile | Wireless | Denver |
| 720-221 | MCI/Verizon | Wireless | Denver |
| 720-222 | MCI/Verizon | Wireless | Denver |
| 720-223 | MCI/Verizon | Wireless | Denver |
| 720-224 | MCI/Verizon | Wireless | Denver |
| 720-225 | MCI/Verizon | Wireless | Denver |
| 720-226 | MCI/Verizon | Wireless | Denver |
| 720-227 | MCI/Verizon | Wireless | Denver |
| 720-228 | MCI/Verizon | Wireless | Denver |
| 720-229 | MCI/Verizon | Wireless | Denver |
| 720-230 | Xo Colorado | Landline | Denver |
| 720-231 | T-Mobile | Wireless | Denver |
| 720-232 | T-Mobile | Wireless | Denver |
| 720-233 | T-Mobile | Wireless | Denver |
| 720-234 | T-Mobile | Wireless | Denver |
| 720-235 | T-Mobile | Wireless | Denver |
| 720-236 | T-Mobile | Wireless | Denver |
| 720-237 | AT&T Mobility | Wireless | Denver |
| 720-238 | T-Mobile | Wireless | Denver |
| 720-239 | Teleport Communications America | Landline | Denver |
| 720-240 | MCI/Verizon | Wireless | Denver |
| 720-241 | MCI/Verizon | Wireless | Denver |
| 720-242 | CenturyLink | Landline | Denver |
| 720-243 | AT&T Mobility | Wireless | Denver |
| 720-244 | AT&T Mobility | Wireless | Denver |
| 720-245 | Electric Lightwave | Landline | Denver |
| 720-246 | MCI/Verizon | Wireless | Denver |
| 720-247 | MCI/Verizon | Wireless | Denver |
| 720-248 | Onvoy | Landline | Denver |
| 720-249 | MCI/Verizon | Wireless | Denver |
| 720-250 | MCI/Verizon | Wireless | Denver |
| 720-251 | Lumen/Level 3 | Landline | Denver |
| 720-252 | T-Mobile | Wireless | Denver |
| 720-253 | T-Mobile | Wireless | Denver |
| 720-254 | T-Mobile | Wireless | Denver |
| 720-255 | T-Mobile | Wireless | Denver |
| 720-256 | T-Mobile | Wireless | Denver |
| 720-257 | MCI/Verizon | Wireless | Denver |
| 720-258 | Teleport Communications America | Landline | Denver |
| 720-259 | Lumen/Level 3 | Landline | Denver |
| 720-260 | T-Mobile | Wireless | Denver |
| 720-261 | T-Mobile | Wireless | Denver |
| 720-262 | Lumen/Level 3 | Landline | Denver |
| 720-263 | Lumen/Level 3 | Landline | Denver |
| 720-264 | CenturyLink | Landline | Denver |
| 720-265 | MCI/Verizon | Wireless | Denver |
| 720-266 | Lumen/Level 3 | Landline | Denver |
| 720-267 | CenturyLink | Landline | Denver |
| 720-268 | CenturyLink | Landline | Denver |
| 720-269 | Teleport Communications America | Landline | Denver |
| 720-270 | T-Mobile | Wireless | Denver |
| 720-271 | T-Mobile | Wireless | Denver |
| 720-272 | AT&T Mobility | Wireless | Denver |
| 720-273 | AT&T Mobility | Wireless | Denver |
| 720-274 | Paetec Itel | Landline | Denver |
| 720-275 | AT&T Mobility | Wireless | Denver |
| 720-276 | AT&T Mobility | Wireless | Denver |
| 720-277 | Lumen/Level 3 | Landline | Denver |
| 720-278 | Lumen/Level 3 | Landline | Denver |
| 720-279 | Lumen/Level 3 | Landline | Denver |
| 720-280 | T-Mobile | Wireless | Denver |
| 720-281 | Verizon Wireless | Wireless | Denver |
| 720-282 | Lumen/Level 3 | Landline | Denver |
| 720-283 | CenturyLink | Landline | Denver |
| 720-284 | MCI/Verizon | Wireless | Denver |
| 720-285 | Xo Colorado | Landline | Denver |
| 720-286 | Teleport Communications America | Landline | Denver |
| 720-287 | Comcast | Landline | Denver |
| 720-288 | Bandwidth.com | Landline | Denver |
| 720-289 | AT&T Mobility | Wireless | Denver |
| 720-290 | T-Mobile | Wireless | Denver |
| 720-291 | T-Mobile | Wireless | Denver |
| 720-292 | AT&T Mobility | Wireless | Denver |
| 720-293 | MCI/Verizon | Wireless | Denver |
| 720-294 | MCI/Verizon | Wireless | Denver |
| 720-295 | Bandwidth.com | Landline | Denver |
| 720-296 | AT&T Mobility | Wireless | Denver |
| 720-297 | AT&T Mobility | Wireless | Denver |
| 720-298 | AT&T Mobility | Wireless | Denver |
| 720-299 | T-Mobile | Wireless | Denver |
| 720-300 | T-Mobile | Wireless | Denver |
| 720-301 | T-Mobile | Wireless | Denver |
| 720-302 | Teleport Communications America | Landline | Denver |
| 720-303 | Bandwidth.com | Landline | Denver |
| 720-304 | CenturyLink | Landline | Denver |
| 720-305 | Lumen/Level 3 | Landline | Denver |
| 720-306 | Electric Lightwave | Landline | Denver |
| 720-307 | AT&T | Landline | Allnspklyn |
| 720-308 | AT&T Mobility | Wireless | Denver |
| 720-309 | AT&T Mobility | Wireless | Denver |
| 720-310 | Teleport Communications America | Landline | Allnspklyn |
| 720-311 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-312 | T-Mobile | Wireless | Denver |
| 720-313 | T-Mobile | Wireless | Denver |
| 720-314 | T-Mobile | Wireless | Denver |
| 720-315 | Onvoy | Landline | Denver |
| 720-316 | Bandwidth.com | Landline | Denver |
| 720-317 | T-Mobile | Wireless | Denver |
| 720-318 | T-Mobile | Wireless | Denver |
| 720-319 | T-Mobile | Wireless | Denver |
| 720-320 | AT&T Mobility | Wireless | Denver |
| 720-321 | CenturyLink | Landline | Denver |
| 720-322 | CenturyLink | Landline | Denver |
| 720-323 | T-Mobile | Wireless | Denver |
| 720-324 | Comcast | Landline | Denver |
| 720-325 | T-Mobile | Wireless | Denver |
| 720-326 | AT&T Mobility | Wireless | Denver |
| 720-327 | AT&T Mobility | Wireless | Denver |
| 720-328 | Comcast | Landline | Denver |
| 720-329 | AT&T Mobility | Wireless | Denver |
| 720-330 | Lumen/Level 3 | Landline | Denver |
| 720-331 | T-Mobile | Wireless | Denver |
| 720-332 | MCI/Verizon | Wireless | Denver |
| 720-333 | T-Mobile | Wireless | Denver |
| 720-334 | T-Mobile | Wireless | Denver |
| 720-335 | T-Mobile | Wireless | Denver |
| 720-336 | Bandwidth.com | Landline | Keenesburg |
| 720-337 | CenturyLink | Landline | Denver |
| 720-338 | AT&T Mobility | Wireless | Denver |
| 720-339 | T-Mobile | Wireless | Denver |
| 720-340 | Verizon Wireless | Wireless | Longmont |
| 720-341 | T-Mobile | Wireless | Denver |
| 720-342 | Teleport Communications America | Landline | Denver |
| 720-343 | Lumen/Level 3 | Landline | Denver |
| 720-344 | CenturyLink | Landline | Denver |
| 720-345 | Zippytech Incorporated | Landline | Denver |
| 720-346 | Verizon Wireless | Wireless | Denver |
| 720-347 | Lumen/Level 3 | Landline | Denver |
| 720-348 | CenturyLink | Landline | Denver |
| 720-349 | Teleport Communications America | Landline | Denver |
| 720-350 | T-Mobile | Wireless | Denver |
| 720-351 | T-Mobile | Wireless | Denver |
| 720-352 | T-Mobile | Wireless | Denver |
| 720-353 | T-Mobile | Wireless | Denver |
| 720-354 | Lumen/Level 3 | Landline | Denver |
| 720-355 | Verizon Wireless | Wireless | Denver |
| 720-356 | Teleport Communications America | Landline | Denver |
| 720-357 | AT&T Mobility | Wireless | Denver |
| 720-358 | MCI/Verizon | Wireless | Hudson |
| 720-359 | CenturyLink | Landline | Denver |
| 720-360 | AT&T Mobility | Wireless | Denver |
| 720-361 | Electric Lightwave | Landline | Denver |
| 720-362 | CenturyLink | Landline | Denver |
| 720-363 | Metro by T-Mobile | Wireless | Denver |
| 720-364 | AT&T Mobility | Wireless | Denver |
| 720-365 | AT&T Mobility | Wireless | Denver |
| 720-366 | AT&T Mobility | Wireless | Denver |
| 720-367 | MCI/Verizon | Wireless | Denver |
| 720-368 | MCI/Verizon | Wireless | Denver |
| 720-369 | AT&T Mobility | Wireless | Denver |
| 720-370 | Bandwidth.com | Landline | Denver |
| 720-371 | T-Mobile | Wireless | Denver |
| 720-372 | T-Mobile | Wireless | Denver |
| 720-373 | T-Mobile | Wireless | Denver |
| 720-374 | CenturyLink | Landline | Denver |
| 720-375 | Commnet Wireless | Wireless | Denver |
| 720-376 | Electric Lightwave | Landline | Denver |
| 720-377 | MCI/Verizon | Wireless | Denver |
| 720-378 | AT&T Mobility | Wireless | Longmont |
| 720-379 | Lumen/Level 3 | Landline | Denver |
| 720-380 | T-Mobile | Wireless | Denver |
| 720-381 | Comcast | Landline | Denver |
| 720-382 | Electric Lightwave | Landline | Denver |
| 720-383 | Verizon Wireless | Wireless | Fortlupton |
| 720-384 | MCI/Verizon | Wireless | Denver |
| 720-385 | MCI/Verizon | Wireless | Denver |
| 720-386 | Bandwidth.com | Landline | Georgetown |
| 720-387 | Lumen/Level 3 | Landline | Denver |
| 720-388 | Verizon Wireless | Wireless | Denver |
| 720-389 | MCI/Verizon | Wireless | Denver |
| 720-390 | Verizon Wireless | Wireless | Denver |
| 720-391 | Verizon Wireless | Wireless | Denver |
| 720-392 | Verizon Wireless | Wireless | Deer Trail |
| 720-393 | Lumen/Level 3 | Landline | Denver |
| 720-394 | T-Mobile | Wireless | Denver |
| 720-395 | AT&T | Landline | Denver |
| 720-396 | AT&T | Landline | Denver |
| 720-397 | AT&T | Landline | Denver |
| 720-398 | AT&T Mobility | Wireless | Denver |
| 720-399 | Lumen/Level 3 | Landline | Denver |
| 720-400 | T-Mobile | Wireless | Denver |
| 720-401 | T-Mobile | Wireless | Denver |
| 720-402 | Electric Lightwave | Landline | Denver |
| 720-403 | Peerless Network Of Colorado | Landline | Denver |
| 720-404 | AT&T Mobility | Wireless | Denver |
| 720-405 | Intrado Communications | Landline | Denver |
| 720-406 | CenturyLink | Landline | Denver |
| 720-407 | Onvoy | Landline | Denver |
| 720-408 | Bandwidth.com | Landline | Denver |
| 720-409 | Paetec Itel | Landline | Denver |
| 720-410 | Comcast | Landline | Denver |
| 720-411 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-412 | AT&T Mobility | Wireless | Denver |
| 720-413 | Verizon Wireless | Wireless | Denver |
| 720-414 | Lumen/Level 3 | Landline | Allnspklyn |
| 720-415 | Verizon Wireless | Wireless | Denver |
| 720-416 | Metro by T-Mobile | Wireless | Denver |
| 720-417 | Electric Lightwave | Landline | Denver |
| 720-418 | MCI/Verizon | Wireless | Denver |
| 720-419 | T-Mobile | Wireless | Denver |
| 720-420 | Lumen/Level 3 | Landline | Denver |
| 720-421 | T-Mobile | Wireless | Denver |
| 720-422 | AT&T Mobility | Wireless | Denver |
| 720-423 | CenturyLink | Landline | Denver |
| 720-424 | CenturyLink | Landline | Denver |
| 720-425 | Verizon Wireless | Wireless | Denver |
| 720-426 | CenturyLink | Landline | Denver |
| 720-427 | T-Mobile | Wireless | Denver |
| 720-428 | Onvoy | Landline | Denver |
| 720-429 | AT&T Mobility | Wireless | Denver |
| 720-430 | AT&T | Landline | Denver |
| 720-431 | AT&T Mobility | Wireless | Denver |
| 720-432 | Bandwidth.com | Landline | Denver |
| 720-433 | CenturyLink | Landline | Denver |
| 720-434 | AT&T Mobility | Wireless | Denver |
| 720-435 | AT&T Mobility | Wireless | Denver |
| 720-436 | AT&T Mobility | Wireless | Denver |
| 720-437 | Verizon Wireless | Wireless | Denver |
| 720-438 | Onvoy | Landline | Longmont |
| 720-439 | AT&T Mobility | Wireless | Denver |
| 720-440 | AT&T Mobility | Wireless | Denver |
| 720-441 | Bandwidth.com | Landline | Denver |
| 720-442 | Bandwidth.com | Landline | Longmont |
| 720-443 | Bandwidth.com | Landline | Denver |
| 720-444 | CenturyLink | Landline | Denver |
| 720-445 | Verizon Wireless | Wireless | Denver |
| 720-446 | MCI/Verizon | Wireless | Denver |
| 720-447 | AT&T Mobility | Wireless | Denver |
| 720-448 | AT&T Mobility | Wireless | Denver |
| 720-449 | MCI/Verizon | Wireless | Denver |
| 720-450 | MCI/Verizon | Wireless | Denver |
| 720-451 | T-Mobile | Wireless | Denver |
| 720-452 | Peerless Network Of Colorado | Landline | Denver |
| 720-453 | T-Mobile | Wireless | Longmont |
| 720-454 | Paetec Itel | Landline | Denver |
| 720-455 | CenturyLink | Landline | Denver |
| 720-456 | Lumen/Level 3 | Landline | Denver |
| 720-457 | Lumen/Level 3 | Landline | Denver |
| 720-458 | Lumen/Level 3 | Landline | Denver |
| 720-459 | Onvoy | Landline | Denver |
| 720-460 | Electric Lightwave | Landline | Denver |
| 720-461 | Metro by T-Mobile | Wireless | Denver |
| 720-462 | MCI/Verizon | Wireless | Denver |
| 720-463 | Onvoy | Landline | Deckers |
| 720-464 | Bandwidth.com | Landline | Denver |
| 720-465 | AT&T Mobility | Wireless | Denver |
| 720-466 | AT&T Mobility | Wireless | Fortlupton |
| 720-467 | Verizon Wireless | Wireless | Denver |
| 720-468 | Lumen/Level 3 | Landline | Denver |
| 720-469 | AT&T Mobility | Wireless | Denver |
| 720-470 | Verizon Wireless | Wireless | Denver |
| 720-471 | Verizon Wireless | Wireless | Denver |
| 720-472 | Teleport Communications America | Landline | Denver |
| 720-473 | Onvoy | Landline | Denver |
| 720-474 | T-Mobile | Wireless | Denver |
| 720-475 | Teleport Communications America | Landline | Denver |
| 720-476 | AT&T Mobility | Wireless | Denver |
| 720-477 | Onvoy | Landline | Denver |
| 720-478 | Lumen/Level 3 | Landline | Denver |
| 720-479 | Teleport Communications America | Landline | Denver |
| 720-480 | AT&T Mobility | Wireless | Denver |
| 720-481 | AT&T Mobility | Wireless | Denver |
| 720-482 | CenturyLink | Landline | Denver |
| 720-483 | AT&T Mobility | Wireless | Denver |
| 720-484 | Electric Lightwave | Landline | Denver |
| 720-485 | Comcast | Landline | Denver |
| 720-486 | AT&T Mobility | Wireless | Denver |
| 720-487 | Telnyx | Landline | Longmont |
| 720-488 | CenturyLink | Landline | Denver |
| 720-489 | CenturyLink | Landline | Denver |
| 720-490 | T-Mobile | Wireless | Denver |
| 720-491 | AT&T Mobility | Wireless | Longmont |
| 720-492 | T-Mobile | Wireless | Denver |
| 720-493 | CenturyLink | Landline | Denver |
| 720-494 | CenturyLink | Landline | Longmont |
| 720-495 | AT&T Mobility | Wireless | Denver |
| 720-496 | Lumen/Level 3 | Landline | Denver |
| 720-497 | CenturyLink | Landline | Denver |
| 720-498 | Verizon Wireless | Wireless | Denver |
| 720-499 | T-Mobile | Wireless | Denver |
| 720-500 | Peerless Network Of Colorado | Landline | Denver |
| 720-501 | Metro by T-Mobile | Wireless | Denver |
| 720-502 | Comcast | Landline | Denver |
| 720-503 | AT&T Mobility | Wireless | Denver |
| 720-504 | Bandwidth.com | Landline | Denver |
| 720-505 | Verizon Wireless | Wireless | Denver |
| 720-506 | Lumen/Level 3 | Landline | Denver |
| 720-507 | Bandwidth.com | Landline | Denver |
| 720-508 | Electric Lightwave | Landline | Denver |
| 720-509 | MCI/Verizon | Wireless | Denver |
| 720-510 | Comcast | Landline | Denver |
| 720-511 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-512 | Comcast | Landline | Denver |
| 720-513 | Onvoy | Landline | Denver |
| 720-514 | Teleport Communications America | Landline | Denver |
| 720-515 | Bandwidth.com | Landline | Denver |
| 720-516 | CenturyLink | Landline | Denver |
| 720-517 | AT&T Mobility | Wireless | Denver |
| 720-518 | Electric Lightwave | Landline | Denver |
| 720-519 | Teleport Communications America | Landline | Denver |
| 720-520 | Spectrum | Landline | Denver |
| 720-521 | American Messaging Services | Landline | Denver |
| 720-522 | MCI/Verizon | Wireless | Denver |
| 720-523 | CenturyLink | Landline | Denver |
| 720-524 | CenturyLink | Landline | Denver |
| 720-525 | T-Mobile | Wireless | Denver |
| 720-526 | AT&T Mobility | Wireless | Longmont |
| 720-527 | Teliax | Landline | Denver |
| 720-528 | CenturyLink | Landline | Denver |
| 720-529 | CenturyLink | Landline | Denver |
| 720-530 | AT&T Mobility | Wireless | Denver |
| 720-531 | Comcast | Landline | Denver |
| 720-532 | Teleport Communications America | Landline | Denver |
| 720-533 | Teleport Communications America | Landline | Denver |
| 720-534 | Vonage | Landline | Longmont |
| 720-535 | Teleport Communications America | Landline | Denver |
| 720-536 | CenturyLink | Landline | Denver |
| 720-537 | Fasttrack Communications | Landline | Denver |
| 720-538 | Verizon Wireless | Wireless | Fortlupton |
| 720-539 | AT&T Mobility | Wireless | Denver |
| 720-540 | CenturyLink | Landline | Denver |
| 720-541 | Verizon Wireless | Wireless | Denver |
| 720-542 | CenturyLink | Landline | Denver |
| 720-543 | Peerless Network Of Colorado | Landline | Denver |
| 720-544 | CenturyLink | Landline | Denver |
| 720-545 | Lumen/Level 3 | Landline | Denver |
| 720-546 | T-Mobile | Wireless | Denver |
| 720-547 | Bandwidth.com | Landline | Keenesburg |
| 720-548 | Lumen/Level 3 | Landline | Denver |
| 720-549 | Lumen/Level 3 | Landline | Denver |
| 720-550 | Paetec Itel | Landline | Denver |
| 720-551 | AT&T Mobility | Wireless | Denver |
| 720-552 | Verizon Wireless | Wireless | Longmont |
| 720-553 | CenturyLink | Landline | Denver |
| 720-554 | CenturyLink | Landline | Denver |
| 720-555 | Multiple Ocn Listing | Landline | Dir Asst |
| 720-556 | Verizon Wireless | Wireless | Denver |
| 720-557 | Verizon Wireless | Wireless | Denver |
| 720-558 | CenturyLink | Landline | Denver |
| 720-559 | Teleport Communications America | Landline | Denver |
| 720-560 | AT&T Mobility | Wireless | Denver |
| 720-561 | CenturyLink | Landline | Denver |
| 720-562 | CenturyLink | Landline | Denver |
| 720-563 | CenturyLink | Landline | Denver |
| 720-564 | CenturyLink | Landline | Denver |
| 720-565 | CenturyLink | Landline | Denver |
| 720-566 | CenturyLink | Landline | Denver |
| 720-567 | Lumen/Level 3 | Landline | Denver |
| 720-568 | CenturyLink | Landline | Denver |
| 720-569 | AT&T Mobility | Wireless | Denver |
| 720-570 | CenturyLink | Landline | Denver |
| 720-571 | Onvoy | Landline | Allnspklyn |
| 720-572 | Teleport Communications America | Landline | Denver |
| 720-573 | Lumen/Level 3 | Landline | Denver |
| 720-574 | Bandwidth.com | Landline | Denver |
| 720-575 | Onvoy | Landline | Denver |
| 720-576 | Verizon Wireless | Wireless | Denver |
| 720-577 | Lumen/Level 3 | Landline | Denver |
| 720-578 | CenturyLink | Landline | Denver |
| 720-579 | MCI/Verizon | Wireless | Denver |
| 720-580 | Bandwidth.com | Landline | Keenesburg |
| 720-581 | T-Mobile | Wireless | Denver |
| 720-582 | Verizon Wireless | Wireless | Denver |
| 720-583 | Onvoy | Landline | Denver |
| 720-584 | Verizon Wireless | Wireless | Denver |
| 720-585 | T-Mobile | Wireless | Denver |
| 720-586 | Metro by T-Mobile | Wireless | Denver |
| 720-587 | Teleport Communications America | Landline | Denver |
| 720-588 | Nuso | Landline | Denver |
| 720-589 | T-Mobile | Wireless | Denver |
| 720-590 | Onvoy | Landline | Denver |
| 720-591 | Verizon Wireless | Wireless | Denver |
| 720-592 | T-Mobile | Wireless | Denver |
| 720-593 | Lumen/Level 3 | Landline | Denver |
| 720-594 | Airus | Landline | Denver |
| 720-595 | Lumen/Level 3 | Landline | Denver |
| 720-596 | Teleport Communications America | Landline | Denver |
| 720-597 | Verizon Wireless | Wireless | Longmont |
| 720-598 | Bandwidth.com | Landline | Denver |
| 720-599 | Electric Lightwave | Landline | Denver |
| 720-600 | Onvoy | Landline | Longmont |
| 720-601 | Verizon Wireless | Wireless | Denver |
| 720-602 | T-Mobile | Wireless | Denver |
| 720-603 | Lumen/Level 3 | Landline | Denver |
| 720-604 | Bandwidth.com | Landline | Denver |
| 720-605 | Onvoy | Landline | Denver |
| 720-606 | AT&T Mobility | Wireless | Fortlupton |
| 720-607 | Verizon Wireless | Wireless | Denver |
| 720-608 | Bandwidth.com | Landline | Georgetown |
| 720-609 | AT&T Mobility | Wireless | Denver |
| 720-610 | Verizon Wireless | Wireless | Denver |
| 720-611 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-612 | T-Mobile | Wireless | Denver |
| 720-613 | MCI/Verizon | Wireless | Hudson |
| 720-614 | Airespring | Landline | Denver |
| 720-615 | Bandwidth.com | Landline | Keenesburg |
| 720-616 | Lumen/Level 3 | Landline | Denver |
| 720-617 | Paetec Itel | Landline | Denver |
| 720-618 | Verizon Wireless | Wireless | Denver |
| 720-619 | Bandwidth.com | Landline | Georgetown |
| 720-620 | AT&T Mobility | Wireless | Denver |
| 720-621 | AT&T Mobility | Wireless | Denver |
| 720-622 | CenturyLink | Landline | Denver |
| 720-623 | Onvoy | Landline | Denver |
| 720-624 | Teleport Communications America | Landline | Denver |
| 720-625 | Paetec Itel | Landline | Denver |
| 720-626 | Verizon Wireless | Wireless | Denver |
| 720-627 | CenturyLink | Landline | Denver |
| 720-628 | AT&T Mobility | Wireless | Denver |
| 720-629 | AT&T Mobility | Wireless | Denver |
| 720-630 | AT&T Mobility | Wireless | Denver |
| 720-631 | MCI/Verizon | Wireless | Denver |
| 720-632 | Teleport Communications America | Landline | Denver |
| 720-633 | AT&T Mobility | Wireless | Denver |
| 720-634 | MCI/Verizon | Wireless | Denver |
| 720-635 | AT&T Mobility | Wireless | Denver |
| 720-636 | Verizon Wireless | Wireless | Denver |
| 720-637 | Onvoy | Landline | Denver |
| 720-638 | Comcast | Landline | Denver |
| 720-639 | Onvoy | Landline | Denver |
| 720-640 | Lumen/Level 3 | Landline | Hudson |
| 720-641 | T-Mobile | Wireless | Denver |
| 720-642 | Verizon Wireless | Wireless | Denver |
| 720-643 | Lumen/Level 3 | Landline | Denver |
| 720-644 | Paetec Itel | Landline | Denver |
| 720-645 | T-Mobile | Wireless | Denver |
| 720-646 | AT&T Mobility | Wireless | Denver |
| 720-647 | Onvoy | Landline | Denver |
| 720-648 | Verizon Wireless | Wireless | Denver |
| 720-649 | Bandwidth.com | Landline | Georgetown |
| 720-650 | Onvoy | Landline | Denver |
| 720-651 | Verizon Wireless | Wireless | Denver |
| 720-652 | CenturyLink | Landline | Longmont |
| 720-653 | Verizon Wireless | Wireless | Denver |
| 720-654 | AT&T Mobility | Wireless | Denver |
| 720-655 | T-Mobile | Wireless | Denver |
| 720-656 | AT&T Mobility | Wireless | Denver |
| 720-657 | Bandwidth.com | Landline | Denver |
| 720-658 | Telstar Communications | Landline | Denver |
| 720-659 | Vonage | Landline | Denver |
| 720-660 | Verizon Wireless | Wireless | Denver |
| 720-661 | Verizon Wireless | Wireless | Denver |
| 720-662 | T-Mobile | Wireless | Denver |
| 720-663 | Bandwidth.com | Landline | Denver |
| 720-664 | Onvoy | Landline | Allnspklyn |
| 720-665 | Verizon Wireless | Wireless | Denver |
| 720-666 | Peerless Network Of Colorado | Landline | Denver |
| 720-667 | Comcast | Landline | Denver |
| 720-668 | Verizon Wireless | Wireless | Denver |
| 720-669 | Onvoy | Landline | Hudson |
| 720-670 | Verizon Wireless | Wireless | Denver |
| 720-671 | Verizon Wireless | Wireless | Denver |
| 720-672 | Verizon Wireless | Wireless | Denver |
| 720-673 | Exiant Communications | Landline | Denver |
| 720-674 | Comcast | Landline | Denver |
| 720-675 | AT&T Mobility | Wireless | Denver |
| 720-676 | MCI/Verizon | Wireless | Denver |
| 720-677 | Onvoy | Landline | Denver |
| 720-678 | Csc Wireless | Wireless | Denver |
| 720-679 | Onvoy | Landline | Georgetown |
| 720-680 | T-Mobile | Wireless | Longmont |
| 720-681 | T-Mobile | Wireless | Denver |
| 720-682 | Verizon Wireless | Wireless | Denver |
| 720-683 | Bandwidth.com | Landline | Fortlupton |
| 720-684 | Lumen/Level 3 | Landline | Longmont |
| 720-685 | CenturyLink | Landline | Denver |
| 720-686 | MCI/Verizon | Wireless | Denver |
| 720-687 | T-Mobile | Wireless | Denver |
| 720-688 | AT&T Mobility | Wireless | Denver |
| 720-689 | Bandwidth.com | Landline | Denver |
| 720-690 | AT&T Mobility | Wireless | Denver |
| 720-691 | T-Mobile | Wireless | Denver |
| 720-692 | Metro by T-Mobile | Wireless | Denver |
| 720-693 | Verizon Wireless | Wireless | Denver |
| 720-694 | T-Mobile | Wireless | Denver |
| 720-695 | MCI/Verizon | Wireless | Denver |
| 720-696 | Bandwidth.com | Landline | Denver |
| 720-697 | CenturyLink | Landline | Denver |
| 720-698 | Verizon Wireless | Wireless | Longmont |
| 720-699 | Onvoy | Landline | Denver |
| 720-700 | Landline | ||
| 720-701 | Teleport Communications America | Landline | Denver |
| 720-702 | Onvoy | Landline | Keenesburg |
| 720-703 | Nuso | Landline | Denver |
| 720-704 | T-Mobile | Wireless | Denver |
| 720-705 | AT&T Mobility | Wireless | Denver |
| 720-706 | Onvoy | Landline | Denver |
| 720-707 | Onvoy | Landline | Denver |
| 720-708 | Teliax | Landline | Denver |
| 720-709 | Paetec Itel | Landline | Denver |
| 720-710 | Onvoy | Landline | Denver |
| 720-711 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-712 | Bandwidth.com | Landline | Fortlupton |
| 720-713 | Onvoy | Landline | Longmont |
| 720-714 | Onvoy | Landline | Longmont |
| 720-715 | Bandwidth.com | Landline | Deckers |
| 720-716 | Lumen/Level 3 | Landline | Denver |
| 720-717 | AT&T Mobility | Wireless | Denver |
| 720-718 | CenturyLink | Landline | Longmont |
| 720-719 | Bandwidth.com | Landline | Denver |
| 720-720 | AT&T Mobility | Wireless | Denver |
| 720-721 | The Voice Application Network | Landline | Denver |
| 720-722 | CenturyLink | Landline | Denver |
| 720-723 | Electric Lightwave | Landline | Denver |
| 720-724 | Electric Lightwave | Landline | Denver |
| 720-725 | T-Mobile | Wireless | Denver |
| 720-726 | Comcast | Landline | Denver |
| 720-727 | Bandwidth.com | Landline | Longmont |
| 720-728 | Lumen/Level 3 | Landline | Denver |
| 720-729 | Bandwidth.com | Landline | Keenesburg |
| 720-730 | Onvoy | Landline | Denver |
| 720-731 | Lumen/Level 3 | Landline | Longmont |
| 720-732 | T-Mobile | Wireless | Denver |
| 720-733 | CenturyLink | Landline | Denver |
| 720-734 | Commnet Wireless | Wireless | Denver |
| 720-735 | Onvoy | Landline | Keenesburg |
| 720-736 | Onvoy | Landline | Denver |
| 720-737 | Verizon Wireless | Wireless | Denver |
| 720-738 | Onvoy | Landline | Denver |
| 720-739 | Bandwidth.com | Landline | Denver |
| 720-740 | Hd Carrier | Landline | Deckers |
| 720-741 | Onvoy | Landline | Georgetown |
| 720-742 | T-Mobile | Wireless | Denver |
| 720-743 | Bandwidth.com | Landline | Longmont |
| 720-744 | CenturyLink | Landline | Denver |
| 720-745 | Lumen/Level 3 | Landline | Longmont |
| 720-746 | CenturyLink | Landline | Denver |
| 720-747 | CenturyLink | Landline | Denver |
| 720-748 | CenturyLink | Landline | Denver |
| 720-749 | Peerless Network Of Colorado | Landline | Denver |
| 720-750 | T-Mobile | Wireless | Denver |
| 720-751 | T-Mobile | Wireless | Denver |
| 720-752 | Lumen/Level 3 | Landline | Denver |
| 720-753 | AT&T Mobility | Wireless | Fortlupton |
| 720-754 | Lumen/Level 3 | Landline | Denver |
| 720-755 | T-Mobile | Wireless | Denver |
| 720-756 | T-Mobile | Wireless | Denver |
| 720-757 | T-Mobile | Wireless | Denver |
| 720-758 | CenturyLink | Landline | Denver |
| 720-759 | Pacoptic Networks | Landline | Longmont |
| 720-760 | Twilio | Landline | Denver |
| 720-761 | T-Mobile | Wireless | Denver |
| 720-762 | Verizon Wireless | Wireless | Denver |
| 720-763 | AT&T Mobility | Wireless | Denver |
| 720-764 | Onvoy | Landline | Hudson |
| 720-765 | Verizon Wireless | Wireless | Denver |
| 720-766 | Fractel | Landline | Denver |
| 720-767 | T-Mobile | Wireless | Denver |
| 720-768 | Commio | Landline | Denver |
| 720-769 | Vonage | Landline | Denver |
| 720-770 | Bandwidth.com | Landline | Deckers |
| 720-771 | T-Mobile | Wireless | Denver |
| 720-772 | Electric Lightwave | Landline | Denver |
| 720-773 | MCI/Verizon | Wireless | Denver |
| 720-774 | AT&T Mobility | Wireless | Denver |
| 720-775 | AT&T Mobility | Wireless | Denver |
| 720-776 | Peerless Network Of Colorado | Landline | Deckers |
| 720-777 | CenturyLink | Landline | Denver |
| 720-778 | Bandwidth.com | Landline | Denver |
| 720-779 | Bandwidth.com | Landline | Denver |
| 720-780 | Onvoy | Landline | Denver |
| 720-781 | T-Mobile | Wireless | Longmont |
| 720-782 | AT&T | Landline | Hudson |
| 720-783 | Onvoy | Landline | Denver |
| 720-784 | Onvoy | Landline | Georgetown |
| 720-785 | Teleport Communications America | Landline | Denver |
| 720-786 | T-Mobile | Wireless | Denver |
| 720-787 | Pacoptic Networks | Landline | Denver |
| 720-788 | Verizon Wireless | Wireless | Denver |
| 720-789 | Lumen/Level 3 | Landline | Denver |
| 720-790 | Onvoy | Landline | Allnspklyn |
| 720-791 | Telnyx | Landline | Georgetown |
| 720-792 | Onvoy | Landline | Denver |
| 720-793 | Verizon Wireless | Wireless | Denver |
| 720-794 | Onvoy | Landline | Allnspklyn |
| 720-795 | CenturyLink | Landline | Denver |
| 720-796 | Nuso | Landline | Georgetown |
| 720-797 | Bandwidth.com | Landline | Keenesburg |
| 720-798 | Bandwidth.com | Landline | Denver |
| 720-799 | Onvoy | Landline | Denver |
| 720-800 | Onvoy | Landline | Denver |
| 720-801 | Hd Carrier | Landline | Georgetown |
| 720-802 | Onvoy | Landline | Fortlupton |
| 720-803 | T-Mobile | Wireless | Denver |
| 720-804 | T-Mobile | Wireless | Longmont |
| 720-805 | Voip Innovations | Landline | Denver |
| 720-806 | Peerless Network Of Colorado | Landline | Deckers |
| 720-807 | Onvoy | Landline | Denver |
| 720-808 | Bandwidth.com | Landline | Denver |
| 720-809 | Metro by T-Mobile | Wireless | Denver |
| 720-810 | Verizon Wireless | Wireless | Denver |
| 720-811 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-812 | Verizon Wireless | Wireless | Denver |
| 720-813 | Ip Horizon | Landline | Denver |
| 720-814 | Verizon Wireless | Wireless | Deer Trail |
| 720-815 | Comcast | Landline | Longmont |
| 720-816 | Spectrum | Landline | Allnspklyn |
| 720-817 | Comcast | Landline | Strasburg |
| 720-818 | Verizon Wireless | Wireless | Longmont |
| 720-819 | T-Mobile | Wireless | Denver |
| 720-820 | Wide Voice | Landline | Denver |
| 720-821 | Onvoy | Landline | Longmont |
| 720-822 | Verizon Wireless | Wireless | Denver |
| 720-823 | Onvoy | Landline | Denver |
| 720-824 | Vonage | Landline | Hudson |
| 720-825 | Hd Carrier | Landline | Denver |
| 720-826 | Comcast | Landline | Denver |
| 720-827 | T-Mobile | Wireless | Denver |
| 720-828 | T-Mobile | Wireless | Denver |
| 720-829 | Metro by T-Mobile | Wireless | Denver |
| 720-830 | Hd Carrier | Landline | Denver |
| 720-831 | Teleport Communications America | Landline | Denver |
| 720-832 | Spectrum | Landline | Hudson |
| 720-833 | CenturyLink | Landline | Denver |
| 720-834 | Teleport Communications America | Landline | Denver |
| 720-835 | AT&T Mobility | Wireless | Denver |
| 720-836 | Lumen/Level 3 | Landline | Denver |
| 720-837 | T-Mobile | Wireless | Denver |
| 720-838 | T-Mobile | Wireless | Denver |
| 720-839 | T-Mobile | Wireless | Denver |
| 720-840 | T-Mobile | Wireless | Denver |
| 720-841 | T-Mobile | Wireless | Denver |
| 720-842 | CenturyLink | Landline | Denver |
| 720-843 | Spectrum | Landline | Denver |
| 720-844 | Leap Telecom | Landline | Denver |
| 720-845 | T-Mobile | Wireless | Denver |
| 720-846 | Verizon Wireless | Wireless | Deer Trail |
| 720-847 | CenturyLink | Landline | Denver |
| 720-848 | CenturyLink | Landline | Denver |
| 720-849 | T-Mobile | Wireless | Denver |
| 720-850 | Five9 | Landline | Denver |
| 720-851 | CenturyLink | Landline | Denver |
| 720-852 | CenturyLink | Landline | Denver |
| 720-853 | Bandwidth.com | Landline | Longmont |
| 720-854 | CenturyLink | Landline | Denver |
| 720-855 | CenturyLink | Landline | Denver |
| 720-856 | Onvoy | Landline | Fortlupton |
| 720-857 | CenturyLink | Landline | Denver |
| 720-858 | CenturyLink | Landline | Denver |
| 720-859 | CenturyLink | Landline | Denver |
| 720-860 | Spectrum | Landline | Denver |
| 720-861 | Bandwidth.com | Landline | Georgetown |
| 720-862 | MCI/Verizon | Wireless | Denver |
| 720-863 | MCI/Verizon | Wireless | Denver |
| 720-864 | CenturyLink | Landline | Longmont |
| 720-865 | Lumen/Level 3 | Landline | Denver |
| 720-866 | Terra Nova Telecom | Landline | Denver |
| 720-867 | Great West Services | Landline | Denver |
| 720-868 | Onvoy | Landline | Fortlupton |
| 720-869 | AT&T Mobility | Wireless | Denver |
| 720-870 | CenturyLink | Landline | Denver |
| 720-871 | T-Mobile | Wireless | Longmont |
| 720-872 | CenturyLink | Landline | Denver |
| 720-873 | CenturyLink | Landline | Denver |
| 720-874 | CenturyLink | Landline | Denver |
| 720-875 | CenturyLink | Landline | Denver |
| 720-876 | CenturyLink | Landline | Denver |
| 720-877 | Lumen/Level 3 | Landline | Denver |
| 720-878 | AT&T Mobility | Wireless | Denver |
| 720-879 | Lumen/Level 3 | Landline | Denver |
| 720-880 | Verizon Wireless | Wireless | Denver |
| 720-881 | Bandwidth.com | Landline | Denver |
| 720-882 | AT&T Mobility | Wireless | Denver |
| 720-883 | Lumen/Level 3 | Landline | Denver |
| 720-884 | CenturyLink | Landline | Denver |
| 720-885 | AT&T Mobility | Wireless | Denver |
| 720-886 | CenturyLink | Landline | Denver |
| 720-887 | CenturyLink | Landline | Denver |
| 720-888 | Lumen/Level 3 | Landline | Denver |
| 720-889 | MCI/Verizon | Wireless | Denver |
| 720-890 | CenturyLink | Landline | Denver |
| 720-891 | Lumen/Level 3 | Landline | Denver |
| 720-892 | Bandwidth.com | Landline | Denver |
| 720-893 | Bandwidth.com | Landline | Allnspklyn |
| 720-894 | Bandwidth.com | Landline | Deckers |
| 720-895 | CenturyLink | Landline | Denver |
| 720-896 | T-Mobile | Wireless | Denver |
| 720-897 | Lumen/Level 3 | Landline | Denver |
| 720-898 | CenturyLink | Landline | Denver |
| 720-899 | Verizon Wireless | Wireless | Longmont |
| 720-900 | Peerless Network Of Colorado | Landline | Denver |
| 720-901 | Telnyx | Landline | Denver |
| 720-902 | Verizon Wireless | Wireless | Denver |
| 720-903 | Lumen/Level 3 | Landline | Denver |
| 720-904 | CenturyLink | Landline | Denver |
| 720-905 | Five9 | Landline | Denver |
| 720-906 | Comcast | Landline | Byers |
| 720-907 | Lumen/Level 3 | Landline | Denver |
| 720-908 | Verizon Wireless | Wireless | Denver |
| 720-909 | Bandwidth.com | Landline | Denver |
| 720-910 | Verizon Wireless | Wireless | Denver |
| 720-911 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 720-912 | Onvoy | Landline | Denver |
| 720-913 | Lumen/Level 3 | Landline | Denver |
| 720-914 | T-Mobile | Wireless | Fortlupton |
| 720-915 | Vonage | Landline | Allnspklyn |
| 720-916 | Verizon Wireless | Wireless | Denver |
| 720-917 | CenturyLink | Landline | Denver |
| 720-918 | Vonage | Landline | Keenesburg |
| 720-919 | T-Mobile | Wireless | Denver |
| 720-920 | Teleport Communications America | Landline | Denver |
| 720-921 | Lumen/Level 3 | Landline | Denver |
| 720-922 | CenturyLink | Landline | Denver |
| 720-923 | Advanced Telecom Solutions | Landline | Denver |
| 720-924 | CenturyLink | Landline | Deckers |
| 720-925 | Comcast | Landline | Denver |
| 720-926 | Verizon Wireless | Wireless | Denver |
| 720-927 | Bandwidth.com | Landline | Longmont |
| 720-928 | Bandwidth.com | Landline | Fortlupton |
| 720-929 | CenturyLink | Landline | Denver |
| 720-930 | Rclec | Landline | Denver |
| 720-931 | CenturyLink | Landline | Denver |
| 720-932 | CenturyLink | Landline | Denver |
| 720-933 | T-Mobile | Wireless | Denver |
| 720-934 | T-Mobile | Wireless | Denver |
| 720-935 | T-Mobile | Wireless | Denver |
| 720-936 | T-Mobile | Wireless | Denver |
| 720-937 | T-Mobile | Wireless | Denver |
| 720-938 | T-Mobile | Wireless | Denver |
| 720-939 | T-Mobile | Wireless | Denver |
| 720-940 | T-Mobile | Wireless | Denver |
| 720-941 | CenturyLink | Landline | Denver |
| 720-942 | CenturyLink | Landline | Denver |
| 720-943 | Lumen/Level 3 | Landline | Denver |
| 720-944 | CenturyLink | Landline | Denver |
| 720-945 | CenturyLink | Landline | Denver |
| 720-946 | CenturyLink | Landline | Denver |
| 720-947 | CenturyLink | Landline | Denver |
| 720-948 | Verizon Wireless | Wireless | Denver |
| 720-949 | Teleport Communications America | Landline | Denver |
| 720-950 | Landline | ||
| 720-951 | Verizon Wireless | Wireless | Denver |
| 720-952 | Vonage | Landline | Deckers |
| 720-953 | T-Mobile | Wireless | Denver |
| 720-954 | Verizon Wireless | Wireless | Fortlupton |
| 720-955 | Verizon Wireless | Wireless | Denver |
| 720-956 | CenturyLink | Landline | Denver |
| 720-957 | T-Mobile | Wireless | Denver |
| 720-958 | Landline | ||
| 720-959 | Landline | ||
| 720-960 | AT&T Mobility | Wireless | Denver |
| 720-961 | Lumen/Level 3 | Landline | Denver |
| 720-962 | CenturyLink | Landline | Denver |
| 720-963 | CenturyLink | Landline | Denver |
| 720-964 | T-Mobile | Wireless | Longmont |
| 720-965 | T-Mobile | Wireless | Denver |
| 720-966 | AT&T Mobility | Wireless | Fortlupton |
| 720-967 | Leap Telecom | Landline | Denver |
| 720-968 | AT&T Mobility | Wireless | Denver |
| 720-969 | AT&T Mobility | Wireless | Denver |
| 720-970 | Bandwidth.com | Landline | Longmont |
| 720-971 | T-Mobile | Wireless | Denver |
| 720-972 | CenturyLink | Landline | Denver |
| 720-973 | Hadlo Technologies | Landline | Denver |
| 720-974 | Electric Lightwave | Landline | Denver |
| 720-975 | Electric Lightwave | Landline | Denver |
| 720-976 | Landline | ||
| 720-977 | CenturyLink | Landline | Denver |
| 720-978 | Nuso | Landline | Denver |
| 720-979 | T-Mobile | Wireless | Denver |
| 720-980 | T-Mobile | Wireless | Denver |
| 720-981 | CenturyLink | Landline | Denver |
| 720-982 | T-Mobile | Wireless | Denver |
| 720-983 | AT&T Mobility | Wireless | Denver |
| 720-984 | T-Mobile | Wireless | Denver |
| 720-985 | T-Mobile | Wireless | Denver |
| 720-986 | Bandwidth.com | Landline | Longmont |
| 720-987 | T-Mobile | Wireless | Denver |
| 720-988 | T-Mobile | Wireless | Denver |
| 720-989 | T-Mobile | Wireless | Denver |
| 720-990 | Lumen/Level 3 | Landline | Denver |
| 720-991 | Commio | Landline | Deckers |
| 720-992 | Teleport Communications America | Landline | Denver |
| 720-993 | AT&T Mobility | Wireless | Denver |
| 720-994 | T-Mobile | Wireless | Denver |
| 720-995 | Eon Telecom | Landline | Denver |
| 720-996 | Commio | Landline | Denver |
| 720-997 | Comcast | Landline | Bennett |
| 720-998 | Comcast | Landline | Denver |
| 720-999 | T-Mobile | Wireless | Denver |
All 5 area codes in Colorado
About Area Code 720
Back in 2001, Colorado's phone lines were getting pretty crowded around Denver, so they rolled out area code 720 as an overlay to handle the surge. Picture this: Denver was booming with new folks moving in for jobs and the great outdoors, and the original 303 code just couldn't keep up. So, instead of splitting things up, they layered 720 right on top, meaning you might dial the same spot with either code depending on the number. That covered a bunch of cities like Arvada with its family-friendly neighborhoods, Aurora's mix of urban vibe and open spaces, Boulder's college town energy, and of course, Denver itself, where the action never stops. This code stretches across 18 cities in total, painting a picture of the Front Range's everyday life—from suburban commutes to mountain getaways. What's neat about 720 is how it's woven into the daily grind; it's not just digits, it's the soundtrack to calls about ski trips or grabbing a bite in Englewood. Folks here rely on it for everything from business deals in Centennial to chats with friends in Brighton. Over the years, it's become a staple, reflecting how Colorado's growth keeps pushing boundaries. Whether you're a long-timer or just passing through Broomfield, 720 connects the dots in this ever-changing slice of the Rockies. It's all about keeping up with the flow in a state that's always on the move.
⚠ Scam & Spam Alert for 720
If you're in the 720 area, you might notice a uptick in shady calls pretending to be from official sources. For instance, IRS scams are common, with callers claiming you owe taxes and demanding payment right away—don't bite, since the real IRS doesn't call like that. Then there's the auto warranty racket, where someone says your car's coverage is expiring and pressures you to renew over the phone; it's a trap to get your card details. Medicare fraud hits older residents hard, with scammers posing as reps to steal personal info for identity theft. These calls can be slick, but they're just attempts to trick you out of money or data. Remember, if something sounds off, hang up and check it out yourself. One solid tip: Always look up the organization independently and call them back on a verified number before sharing anything.
Local Snapshot
Denver's metro area packs in over 2.9 million people, making it a hub of activity in the heart of Colorado. The economy here runs on tech, aerospace, and outdoor gear companies, drawing in talent from all over. You can't talk about the region without mentioning its love for the mountains; hiking and skiing are just part of the deal. Then there's the surprising fact that Denver sits at a mile high elevation, which means the air's thinner and craft beer tastes even better—it's no wonder the city's got a booming brewing scene with places like Coors Field drawing crowds year-round.
Frequently Asked Questions
Where is area code 720?
Area code 720 serves Denver and surrounding communities in Colorado, including Arvada, Aurora, Boulder, Brighton, Broomfield and 13 more. It is in the Mountain time zone.
What cities are in area code 720?
Area code 720 covers 18 cities in Colorado: Arvada, Aurora, Boulder, Brighton, Broomfield, Centennial, Denver, Englewood, Erie, Golden, and 8 more
What time zone is 720?
Area code 720 is in the Mountain time zone (UTC-7).
When was area code 720 created?
Area code 720 was established in 2001 as an overlay to provide additional numbers for the region.
Is 720 a legitimate area code?
Yes, 720 is a valid, active area code assigned to Denver, Colorado. However, scammers can spoof any area code, so receiving a call from 720 doesn't guarantee the caller is actually in this area.
Why was the 720 area code established in 2001?
The 720 area code was created in 2001 as an overlay for the existing 303 code to handle the rapid population growth in the Denver metropolitan area. This allowed for more phone numbers to support the expanding suburbs and communities like Aurora and Boulder. The introduction reflected the area's development driven by migration and economic opportunities.
What key industries are prominent in the cities served by 720?
In the 720 area, aerospace and technology sectors are major, with companies in Denver and Boulder playing significant roles. The region also features energy and outdoor equipment manufacturing, tying into Colorado's natural resources and history. Agriculture and tourism add to the local economy in places like Brighton and Broomfield.
How does the Mountain Time Zone impact daily activities in the 720 area?
The Mountain Time Zone, UTC-7, requires residents in the 720 area to adjust schedules for daylight saving time, affecting coordination with other time zones during events. This timezone influences business operations and school timings in cities such as Arvada and Centennial, often leading to earlier evenings in winter months. It also plays a part in regional travel and communication within the state.