Colorado
Area code 720
Area code 720 covers Denver, Longmont, Fort Lupton, Georgetown, Deckers and more in Colorado, in the Mountain time zone. It has been in service since 1998. It shares its area with 303, 983 (an overlay).
WhereColorado
Time zoneMountain
Exchanges785
Flagged numbers37192 complaints
Most reported 720 numbers
(720) 715-8384Caution(720) 204-7402Caution(720) 817-3241Caution(720) 452-2378Caution(720) 784-8956Caution(720) 821-0485Caution(720) 784-8952Caution(720) 743-4345Caution(720) 792-0781CautionComputer(720) 953-6108Caution(720) 792-1554Caution(720) 792-0867CautionPayday loans(720) 712-0300Caution(720) 817-3666Caution(720) 552-8586Shady callPolitical(720) 897-0778CautionComputer(720) 829-4896CautionPolitical(720) 734-2405CautionMortgage loans(720) 824-9573Shady callPolitical(720) 340-3155Shady callPolitical(720) 580-0470Shady callPolitical(720) 894-9254Shady callHome improvement(720) 594-1985CautionHome improvement(720) 679-0407CautionHome improvement
Carriers in 720
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 720
DenverLongmontFort LuptonGeorgetownDeckersKeenesburgHudsonDeer Trail
Every 720 exchange
The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.
| Exchange | City | Carrier | Type | Flagged |
|---|---|---|---|---|
| 720-200 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-201 | Denver | AT&T Mobility | Wireless | 0 |
| 720-202 | Denver | Verizon Wireless | Wireless | 0 |
| 720-203 | Denver | T-Mobile | Wireless | 0 |
| 720-204 | Longmont | Lumen (Level 3) | VoIP | 1 |
| 720-205 | Denver | T-Mobile | Wireless | 0 |
| 720-206 | Denver | Verizon Business | VoIP | 0 |
| 720-207 | Denver | Verizon Business | VoIP | 0 |
| 720-208 | Denver | Verizon Business | VoIP | 0 |
| 720-209 | Denver | T-Mobile | Wireless | 0 |
| 720-210 | Denver | Verizon Business | VoIP | 0 |
| 720-212 | Denver | Verizon Business | VoIP | 0 |
| 720-213 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-214 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-215 | Denver | Verizon Wireless | Wireless | 0 |
| 720-216 | Denver | AT&T | VoIP | 0 |
| 720-217 | Denver | T-Mobile | Wireless | 0 |
| 720-218 | Denver | T-Mobile | Wireless | 0 |
| 720-219 | Denver | Verizon Wireless | Wireless | 0 |
| 720-220 | Denver | T-Mobile | Wireless | 0 |
| 720-221 | Denver | Verizon Business | VoIP | 0 |
| 720-222 | Denver | Verizon Business | VoIP | 0 |
| 720-223 | Denver | Verizon Business | VoIP | 0 |
| 720-224 | Denver | Verizon Business | VoIP | 0 |
| 720-225 | Denver | Verizon Business | VoIP | 0 |
| 720-226 | Denver | Verizon Business | VoIP | 0 |
| 720-227 | Denver | Verizon Business | VoIP | 0 |
| 720-228 | Denver | Verizon Business | VoIP | 0 |
| 720-229 | Denver | Verizon Business | VoIP | 0 |
| 720-230 | Denver | Xo Colorado | Landline | 0 |
| 720-231 | Denver | T-Mobile | Wireless | 0 |
| 720-232 | Denver | T-Mobile | Wireless | 0 |
| 720-233 | Denver | T-Mobile | Wireless | 0 |
| 720-234 | Denver | T-Mobile | Wireless | 0 |
| 720-235 | Denver | T-Mobile | Wireless | 0 |
| 720-236 | Denver | T-Mobile | Wireless | 0 |
| 720-237 | Denver | AT&T Mobility | Wireless | 0 |
| 720-238 | Denver | T-Mobile | Wireless | 1 |
| 720-239 | Denver | AT&T | VoIP | 0 |
| 720-240 | Denver | Verizon Business | VoIP | 0 |
| 720-241 | Denver | Verizon Business | VoIP | 0 |
| 720-242 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-243 | Denver | AT&T Mobility | Wireless | 0 |
| 720-244 | Denver | AT&T Mobility | Wireless | 0 |
| 720-245 | Denver | Allstream | Landline | 0 |
| 720-246 | Denver | Verizon Business | VoIP | 0 |
| 720-247 | Denver | Verizon Business | VoIP | 0 |
| 720-248 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-249 | Denver | Verizon Business | VoIP | 0 |
| 720-250 | Denver | Verizon Business | VoIP | 0 |
| 720-251 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-252 | Denver | T-Mobile | Wireless | 0 |
| 720-253 | Denver | T-Mobile | Wireless | 0 |
| 720-254 | Denver | T-Mobile | Wireless | 0 |
| 720-255 | Denver | T-Mobile | Wireless | 0 |
| 720-256 | Denver | T-Mobile | Wireless | 0 |
| 720-257 | Denver | Verizon Business | VoIP | 0 |
| 720-258 | Denver | AT&T | VoIP | 0 |
| 720-259 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-260 | Denver | T-Mobile | Wireless | 0 |
| 720-261 | Denver | T-Mobile | Wireless | 0 |
| 720-262 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-263 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-264 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-265 | Denver | Verizon Business | VoIP | 0 |
| 720-266 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-267 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-268 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-269 | Denver | AT&T | VoIP | 0 |
| 720-270 | Denver | T-Mobile | Wireless | 0 |
| 720-271 | Denver | T-Mobile | Wireless | 0 |
| 720-272 | Denver | AT&T Mobility | Wireless | 0 |
| 720-273 | Denver | AT&T Mobility | Wireless | 0 |
| 720-274 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-275 | Denver | AT&T Mobility | Wireless | 0 |
| 720-276 | Denver | AT&T Mobility | Wireless | 0 |
| 720-277 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-278 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-279 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-280 | Denver | T-Mobile | Wireless | 0 |
| 720-281 | Denver | Verizon Wireless | Wireless | 0 |
| 720-282 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-283 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-284 | Denver | Verizon Business | VoIP | 0 |
| 720-285 | Denver | Xo Colorado | Landline | 0 |
| 720-286 | Denver | AT&T | VoIP | 0 |
| 720-287 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-288 | Denver | Bandwidth | VoIP | 0 |
| 720-289 | Denver | AT&T Mobility | Wireless | 0 |
| 720-290 | Denver | T-Mobile | Wireless | 0 |
| 720-291 | Denver | T-Mobile | Wireless | 0 |
| 720-292 | Denver | AT&T Mobility | Wireless | 0 |
| 720-293 | Denver | Verizon Business | VoIP | 0 |
| 720-294 | Denver | Verizon Business | VoIP | 0 |
| 720-295 | Denver | Bandwidth | VoIP | 0 |
| 720-296 | Denver | AT&T Mobility | Wireless | 0 |
| 720-297 | Denver | AT&T Mobility | Wireless | 0 |
| 720-298 | Denver | AT&T Mobility | Wireless | 0 |
| 720-299 | Denver | T-Mobile | Wireless | 0 |
| 720-300 | Denver | T-Mobile | Wireless | 0 |
| 720-301 | Denver | T-Mobile | Wireless | 0 |
| 720-302 | Denver | AT&T | VoIP | 0 |
| 720-303 | Denver | Bandwidth | VoIP | 0 |
| 720-304 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-305 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-306 | Denver | Allstream | Landline | 0 |
| 720-307 | AT&T | Landline | 0 | |
| 720-308 | Denver | AT&T Mobility | Wireless | 0 |
| 720-309 | Denver | AT&T Mobility | Wireless | 0 |
| 720-310 | AT&T | VoIP | 0 | |
| 720-312 | Denver | T-Mobile | Wireless | 0 |
| 720-313 | Denver | T-Mobile | Wireless | 0 |
| 720-314 | Denver | T-Mobile | Wireless | 0 |
| 720-315 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-316 | Denver | Bandwidth | VoIP | 0 |
| 720-317 | Denver | T-Mobile | Wireless | 0 |
| 720-318 | Denver | T-Mobile | Wireless | 0 |
| 720-319 | Denver | T-Mobile | Wireless | 1 |
| 720-320 | Denver | AT&T Mobility | Wireless | 0 |
| 720-321 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-322 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-323 | Denver | T-Mobile | Wireless | 0 |
| 720-324 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-325 | Denver | T-Mobile | Wireless | 0 |
| 720-326 | Denver | AT&T Mobility | Wireless | 0 |
| 720-327 | Denver | AT&T Mobility | Wireless | 0 |
| 720-328 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-329 | Denver | AT&T Mobility | Wireless | 0 |
| 720-330 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-331 | Denver | T-Mobile | Wireless | 0 |
| 720-332 | Denver | Verizon Business | VoIP | 0 |
| 720-333 | Denver | T-Mobile | Wireless | 0 |
| 720-334 | Denver | T-Mobile | Wireless | 0 |
| 720-335 | Denver | T-Mobile | Wireless | 0 |
| 720-336 | Keenesburg | Bandwidth | VoIP | 0 |
| 720-337 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-338 | Denver | AT&T Mobility | Wireless | 0 |
| 720-339 | Denver | T-Mobile | Wireless | 0 |
| 720-340 | Longmont | Verizon Wireless | Wireless | 3 |
| 720-341 | Denver | T-Mobile | Wireless | 0 |
| 720-342 | Denver | AT&T | VoIP | 0 |
| 720-343 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-344 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-345 | Denver | Zippytech Incorporated | Landline | 0 |
| 720-346 | Denver | Verizon Wireless | Wireless | 0 |
| 720-347 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-348 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-349 | Denver | AT&T | VoIP | 0 |
| 720-350 | Denver | T-Mobile | Wireless | 0 |
| 720-351 | Denver | T-Mobile | Wireless | 0 |
| 720-352 | Denver | T-Mobile | Wireless | 0 |
| 720-353 | Denver | T-Mobile | Wireless | 0 |
| 720-354 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-355 | Denver | Verizon Wireless | Wireless | 0 |
| 720-356 | Denver | AT&T | VoIP | 0 |
| 720-357 | Denver | AT&T Mobility | Wireless | 0 |
| 720-358 | Hudson | Verizon Business | VoIP | 0 |
| 720-359 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-360 | Denver | AT&T Mobility | Wireless | 0 |
| 720-361 | Denver | Allstream | Landline | 0 |
| 720-362 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-363 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-364 | Denver | AT&T Mobility | Wireless | 0 |
| 720-365 | Denver | AT&T Mobility | Wireless | 0 |
| 720-366 | Denver | AT&T Mobility | Wireless | 0 |
| 720-367 | Denver | Verizon Business | VoIP | 0 |
| 720-368 | Denver | Verizon Business | VoIP | 0 |
| 720-369 | Denver | AT&T Mobility | Wireless | 0 |
| 720-370 | Denver | Bandwidth | VoIP | 0 |
| 720-371 | Denver | T-Mobile | Wireless | 0 |
| 720-372 | Denver | T-Mobile | Wireless | 0 |
| 720-373 | Denver | T-Mobile | Wireless | 0 |
| 720-374 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-375 | Denver | AT&T Mobility | Wireless | 0 |
| 720-376 | Denver | Allstream | Landline | 0 |
| 720-377 | Denver | Verizon Business | VoIP | 0 |
| 720-378 | Longmont | AT&T Mobility | Wireless | 0 |
| 720-379 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-380 | Denver | T-Mobile | Wireless | 0 |
| 720-381 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-382 | Denver | Allstream | Landline | 0 |
| 720-383 | Fort Lupton | Verizon Wireless | Wireless | 0 |
| 720-384 | Denver | Verizon Business | VoIP | 0 |
| 720-385 | Denver | Verizon Business | VoIP | 0 |
| 720-386 | Georgetown | Bandwidth | VoIP | 0 |
| 720-387 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-388 | Denver | Verizon Wireless | Wireless | 0 |
| 720-389 | Denver | Verizon Business | VoIP | 0 |
| 720-390 | Denver | Verizon Wireless | Wireless | 0 |
| 720-391 | Denver | Verizon Wireless | Wireless | 0 |
| 720-392 | Deer Trail | Verizon Wireless | Wireless | 0 |
| 720-393 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-394 | Denver | T-Mobile | Wireless | 0 |
| 720-395 | Denver | AT&T | Landline | 0 |
| 720-396 | Denver | AT&T | Landline | 0 |
| 720-397 | Denver | AT&T | Landline | 0 |
| 720-398 | Denver | AT&T Mobility | Wireless | 0 |
| 720-399 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-400 | Denver | T-Mobile | Wireless | 0 |
| 720-401 | Denver | T-Mobile | Wireless | 0 |
| 720-402 | Denver | Allstream | Landline | 0 |
| 720-403 | Denver | Peerless Network | VoIP | 0 |
| 720-404 | Denver | AT&T Mobility | Wireless | 0 |
| 720-405 | Denver | Intrado Communications | Landline | 0 |
| 720-406 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-407 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-408 | Denver | Bandwidth | VoIP | 0 |
| 720-409 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-410 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-412 | Denver | AT&T Mobility | Wireless | 0 |
| 720-413 | Denver | Verizon Wireless | Wireless | 0 |
| 720-414 | Lumen (Level 3) | VoIP | 0 | |
| 720-415 | Denver | Verizon Wireless | Wireless | 0 |
| 720-416 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-417 | Denver | Allstream | Landline | 0 |
| 720-418 | Denver | Verizon Business | VoIP | 0 |
| 720-419 | Denver | T-Mobile | Wireless | 0 |
| 720-420 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-421 | Denver | T-Mobile | Wireless | 0 |
| 720-422 | Denver | AT&T Mobility | Wireless | 0 |
| 720-423 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-424 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-425 | Denver | Verizon Wireless | Wireless | 0 |
| 720-426 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-427 | Denver | T-Mobile | Wireless | 0 |
| 720-428 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-429 | Denver | AT&T Mobility | Wireless | 0 |
| 720-430 | Denver | AT&T | Landline | 0 |
| 720-431 | Denver | AT&T Mobility | Wireless | 0 |
| 720-432 | Denver | Bandwidth | VoIP | 0 |
| 720-433 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-434 | Denver | AT&T Mobility | Wireless | 0 |
| 720-435 | Denver | AT&T Mobility | Wireless | 0 |
| 720-436 | Denver | AT&T Mobility | Wireless | 0 |
| 720-437 | Denver | Verizon Wireless | Wireless | 0 |
| 720-438 | Longmont | Onvoy (Sinch) | VoIP | 0 |
| 720-439 | Denver | AT&T Mobility | Wireless | 0 |
| 720-440 | Denver | AT&T Mobility | Wireless | 0 |
| 720-441 | Denver | Bandwidth | VoIP | 0 |
| 720-442 | Longmont | Bandwidth | VoIP | 0 |
| 720-443 | Denver | Bandwidth | VoIP | 0 |
| 720-444 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-445 | Denver | Verizon Wireless | Wireless | 0 |
| 720-446 | Denver | Verizon Business | VoIP | 0 |
| 720-447 | Denver | AT&T Mobility | Wireless | 0 |
| 720-448 | Denver | AT&T Mobility | Wireless | 0 |
| 720-449 | Denver | Verizon Business | VoIP | 0 |
| 720-450 | Denver | Verizon Business | VoIP | 0 |
| 720-451 | Denver | T-Mobile | Wireless | 0 |
| 720-452 | Denver | Peerless Network | VoIP | 1 |
| 720-453 | Longmont | T-Mobile | Wireless | 0 |
| 720-454 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-455 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-456 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-457 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-458 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-459 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-460 | Denver | Allstream | Landline | 0 |
| 720-461 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-462 | Denver | Verizon Business | VoIP | 0 |
| 720-463 | Deckers | Onvoy (Sinch) | VoIP | 0 |
| 720-464 | Denver | Bandwidth | VoIP | 0 |
| 720-465 | Denver | AT&T Mobility | Wireless | 0 |
| 720-466 | Fort Lupton | AT&T Mobility | Wireless | 0 |
| 720-467 | Denver | Verizon Wireless | Wireless | 0 |
| 720-468 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-469 | Denver | AT&T Mobility | Wireless | 0 |
| 720-470 | Denver | Verizon Wireless | Wireless | 0 |
| 720-471 | Denver | Verizon Wireless | Wireless | 0 |
| 720-472 | Denver | AT&T | VoIP | 0 |
| 720-473 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-474 | Denver | T-Mobile | Wireless | 0 |
| 720-475 | Denver | AT&T | VoIP | 0 |
| 720-476 | Denver | AT&T Mobility | Wireless | 0 |
| 720-477 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-478 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-479 | Denver | AT&T | VoIP | 0 |
| 720-480 | Denver | AT&T Mobility | Wireless | 0 |
| 720-481 | Denver | AT&T Mobility | Wireless | 0 |
| 720-482 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-483 | Denver | AT&T Mobility | Wireless | 0 |
| 720-484 | Denver | Allstream | Landline | 0 |
| 720-485 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-486 | Denver | AT&T Mobility | Wireless | 0 |
| 720-487 | Longmont | Telnyx | VoIP | 0 |
| 720-488 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-489 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-490 | Denver | T-Mobile | Wireless | 0 |
| 720-491 | Longmont | AT&T Mobility | Wireless | 0 |
| 720-492 | Denver | T-Mobile | Wireless | 1 |
| 720-493 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-494 | Longmont | Lumen (CenturyLink) | Landline | 0 |
| 720-495 | Denver | AT&T Mobility | Wireless | 0 |
| 720-496 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-497 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-498 | Denver | Verizon Wireless | Wireless | 0 |
| 720-499 | Denver | T-Mobile | Wireless | 0 |
| 720-500 | Denver | Peerless Network | VoIP | 0 |
| 720-501 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-502 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-503 | Denver | AT&T Mobility | Wireless | 0 |
| 720-504 | Denver | Bandwidth | VoIP | 0 |
| 720-505 | Denver | Verizon Wireless | Wireless | 0 |
| 720-506 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-507 | Denver | Bandwidth | VoIP | 0 |
| 720-508 | Denver | Allstream | Landline | 0 |
| 720-509 | Denver | Verizon Business | VoIP | 0 |
| 720-510 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-512 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-513 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-514 | Denver | AT&T | VoIP | 0 |
| 720-515 | Denver | Bandwidth | VoIP | 0 |
| 720-516 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-517 | Denver | AT&T Mobility | Wireless | 0 |
| 720-518 | Denver | Allstream | Landline | 0 |
| 720-519 | Denver | AT&T | VoIP | 0 |
| 720-520 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-521 | Denver | American Messaging Services | Landline | 0 |
| 720-522 | Denver | Verizon Business | VoIP | 0 |
| 720-523 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-524 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-525 | Denver | T-Mobile | Wireless | 0 |
| 720-526 | Longmont | AT&T Mobility | Wireless | 0 |
| 720-527 | Denver | Teliax | VoIP | 0 |
| 720-528 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-529 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-530 | Denver | AT&T Mobility | Wireless | 0 |
| 720-531 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-532 | Denver | AT&T | VoIP | 0 |
| 720-533 | Denver | AT&T | VoIP | 0 |
| 720-534 | Longmont | Vonage | VoIP | 0 |
| 720-535 | Denver | AT&T | VoIP | 0 |
| 720-536 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-537 | Denver | Fasttrack Communications | Landline | 0 |
| 720-538 | Fort Lupton | Verizon Wireless | Wireless | 0 |
| 720-539 | Denver | AT&T Mobility | Wireless | 0 |
| 720-540 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-541 | Denver | Verizon Wireless | Wireless | 0 |
| 720-542 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-543 | Denver | Peerless Network | VoIP | 1 |
| 720-544 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-545 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-546 | Denver | T-Mobile | Wireless | 0 |
| 720-547 | Keenesburg | Bandwidth | VoIP | 0 |
| 720-548 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-549 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-550 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-551 | Denver | AT&T Mobility | Wireless | 0 |
| 720-552 | Longmont | Verizon Wireless | Wireless | 1 |
| 720-553 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-554 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-556 | Denver | Verizon Wireless | Wireless | 0 |
| 720-557 | Denver | Verizon Wireless | Wireless | 0 |
| 720-558 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-559 | Denver | AT&T | VoIP | 0 |
| 720-560 | Denver | AT&T Mobility | Wireless | 0 |
| 720-561 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-562 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-563 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-564 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-565 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-566 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-567 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-568 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-569 | Denver | AT&T Mobility | Wireless | 0 |
| 720-570 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-571 | Onvoy (Sinch) | VoIP | 0 | |
| 720-572 | Denver | AT&T | VoIP | 0 |
| 720-573 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-574 | Denver | Bandwidth | VoIP | 0 |
| 720-575 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-576 | Denver | Verizon Wireless | Wireless | 0 |
| 720-577 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-578 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-579 | Denver | Verizon Business | VoIP | 0 |
| 720-580 | Keenesburg | Bandwidth | VoIP | 1 |
| 720-581 | Denver | T-Mobile | Wireless | 0 |
| 720-582 | Denver | Verizon Wireless | Wireless | 0 |
| 720-583 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-584 | Denver | Verizon Wireless | Wireless | 0 |
| 720-585 | Denver | T-Mobile | Wireless | 0 |
| 720-586 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-587 | Denver | AT&T | VoIP | 0 |
| 720-588 | Denver | Nuso | Landline | 0 |
| 720-589 | Denver | T-Mobile | Wireless | 0 |
| 720-590 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-591 | Denver | Verizon Wireless | Wireless | 0 |
| 720-592 | Denver | T-Mobile | Wireless | 0 |
| 720-593 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-594 | Denver | Onvoy (Sinch) | VoIP | 1 |
| 720-595 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-596 | Denver | AT&T | VoIP | 0 |
| 720-597 | Longmont | Verizon Wireless | Wireless | 0 |
| 720-598 | Denver | Bandwidth | VoIP | 0 |
| 720-599 | Denver | Allstream | Landline | 0 |
| 720-600 | Longmont | Onvoy (Sinch) | VoIP | 0 |
| 720-601 | Denver | Verizon Wireless | Wireless | 0 |
| 720-602 | Denver | T-Mobile | Wireless | 0 |
| 720-603 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-604 | Denver | Bandwidth | VoIP | 0 |
| 720-605 | Denver | Onvoy (Sinch) | VoIP | 1 |
| 720-606 | Fort Lupton | AT&T Mobility | Wireless | 0 |
| 720-607 | Denver | Verizon Wireless | Wireless | 0 |
| 720-608 | Georgetown | Bandwidth | VoIP | 0 |
| 720-609 | Denver | AT&T Mobility | Wireless | 0 |
| 720-610 | Denver | Verizon Wireless | Wireless | 0 |
| 720-612 | Denver | T-Mobile | Wireless | 0 |
| 720-613 | Hudson | Verizon Business | VoIP | 0 |
| 720-614 | Denver | Airespring | Landline | 0 |
| 720-615 | Keenesburg | Bandwidth | VoIP | 0 |
| 720-616 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-617 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-618 | Denver | Verizon Wireless | Wireless | 0 |
| 720-619 | Georgetown | Bandwidth | VoIP | 0 |
| 720-620 | Denver | AT&T Mobility | Wireless | 0 |
| 720-621 | Denver | AT&T Mobility | Wireless | 0 |
| 720-622 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-623 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-624 | Denver | AT&T | VoIP | 0 |
| 720-625 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-626 | Denver | Verizon Wireless | Wireless | 0 |
| 720-627 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-628 | Denver | AT&T Mobility | Wireless | 0 |
| 720-629 | Denver | AT&T Mobility | Wireless | 0 |
| 720-630 | Denver | AT&T Mobility | Wireless | 0 |
| 720-631 | Denver | Verizon Business | VoIP | 0 |
| 720-632 | Denver | AT&T | VoIP | 0 |
| 720-633 | Denver | AT&T Mobility | Wireless | 0 |
| 720-634 | Denver | Verizon Business | VoIP | 0 |
| 720-635 | Denver | AT&T Mobility | Wireless | 0 |
| 720-636 | Denver | Verizon Wireless | Wireless | 0 |
| 720-637 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-638 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-639 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-640 | Hudson | Lumen (Level 3) | VoIP | 0 |
| 720-641 | Denver | T-Mobile | Wireless | 0 |
| 720-642 | Denver | Verizon Wireless | Wireless | 0 |
| 720-643 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-644 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-645 | Denver | T-Mobile | Wireless | 0 |
| 720-646 | Denver | AT&T Mobility | Wireless | 0 |
| 720-647 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-648 | Denver | Verizon Wireless | Wireless | 0 |
| 720-649 | Georgetown | Bandwidth | VoIP | 0 |
| 720-650 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-651 | Denver | Verizon Wireless | Wireless | 0 |
| 720-652 | Longmont | Lumen (CenturyLink) | Landline | 0 |
| 720-653 | Denver | Verizon Wireless | Wireless | 0 |
| 720-654 | Denver | AT&T Mobility | Wireless | 0 |
| 720-655 | Denver | T-Mobile | Wireless | 0 |
| 720-656 | Denver | AT&T Mobility | Wireless | 0 |
| 720-657 | Denver | Bandwidth | VoIP | 0 |
| 720-658 | Denver | Telstar Communications | Landline | 0 |
| 720-659 | Denver | Vonage | VoIP | 0 |
| 720-660 | Denver | Verizon Wireless | Wireless | 0 |
| 720-661 | Denver | Verizon Wireless | Wireless | 0 |
| 720-662 | Denver | T-Mobile | Wireless | 0 |
| 720-663 | Denver | Bandwidth | VoIP | 0 |
| 720-664 | Onvoy (Sinch) | VoIP | 0 | |
| 720-665 | Denver | Verizon Wireless | Wireless | 0 |
| 720-666 | Denver | Peerless Network | VoIP | 0 |
| 720-667 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-668 | Denver | Verizon Wireless | Wireless | 0 |
| 720-669 | Hudson | Onvoy (Sinch) | VoIP | 0 |
| 720-670 | Denver | Verizon Wireless | Wireless | 0 |
| 720-671 | Denver | Verizon Wireless | Wireless | 0 |
| 720-672 | Denver | Verizon Wireless | Wireless | 0 |
| 720-673 | Denver | Exiant Communications | Landline | 0 |
| 720-674 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-675 | Denver | AT&T Mobility | Wireless | 0 |
| 720-676 | Denver | Verizon Business | VoIP | 0 |
| 720-677 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-678 | Denver | Csc Wireless | Wireless | 0 |
| 720-679 | Georgetown | Onvoy (Sinch) | VoIP | 1 |
| 720-680 | Longmont | T-Mobile | Wireless | 0 |
| 720-681 | Denver | T-Mobile | Wireless | 0 |
| 720-682 | Denver | Verizon Wireless | Wireless | 0 |
| 720-683 | Fort Lupton | Bandwidth | VoIP | 0 |
| 720-684 | Longmont | Lumen (Level 3) | VoIP | 0 |
| 720-685 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-686 | Denver | Verizon Business | VoIP | 0 |
| 720-687 | Denver | T-Mobile | Wireless | 0 |
| 720-688 | Denver | AT&T Mobility | Wireless | 0 |
| 720-689 | Denver | Bandwidth | VoIP | 0 |
| 720-690 | Denver | AT&T Mobility | Wireless | 0 |
| 720-691 | Denver | T-Mobile | Wireless | 0 |
| 720-692 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-693 | Denver | Verizon Wireless | Wireless | 0 |
| 720-694 | Denver | T-Mobile | Wireless | 0 |
| 720-695 | Denver | Verizon Business | VoIP | 0 |
| 720-696 | Denver | Bandwidth | VoIP | 0 |
| 720-697 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-698 | Longmont | Verizon Wireless | Wireless | 0 |
| 720-699 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-701 | Denver | AT&T | VoIP | 0 |
| 720-702 | Keenesburg | Onvoy (Sinch) | VoIP | 0 |
| 720-703 | Denver | Nuso | Landline | 0 |
| 720-704 | Denver | T-Mobile | Wireless | 0 |
| 720-705 | Denver | AT&T Mobility | Wireless | 0 |
| 720-706 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-707 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-708 | Denver | Teliax | VoIP | 0 |
| 720-709 | Denver | Windstream (PAETEC) | VoIP | 0 |
| 720-710 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-712 | Fort Lupton | Bandwidth | VoIP | 1 |
| 720-713 | Longmont | Onvoy (Sinch) | VoIP | 0 |
| 720-714 | Longmont | Onvoy (Sinch) | VoIP | 0 |
| 720-715 | Deckers | Bandwidth | VoIP | 1 |
| 720-716 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-717 | Denver | AT&T Mobility | Wireless | 0 |
| 720-718 | Longmont | Lumen (CenturyLink) | Landline | 0 |
| 720-719 | Denver | Bandwidth | VoIP | 0 |
| 720-720 | Denver | AT&T Mobility | Wireless | 0 |
| 720-721 | Denver | The Voice Application Network | Landline | 0 |
| 720-722 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-723 | Denver | Allstream | Landline | 0 |
| 720-724 | Denver | Allstream | Landline | 0 |
| 720-725 | Denver | T-Mobile | Wireless | 0 |
| 720-726 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-727 | Longmont | Bandwidth | VoIP | 0 |
| 720-728 | Denver | Lumen (Level 3) | VoIP | 1 |
| 720-729 | Keenesburg | Bandwidth | VoIP | 0 |
| 720-730 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-731 | Longmont | Lumen (Level 3) | VoIP | 0 |
| 720-732 | Denver | T-Mobile | Wireless | 0 |
| 720-733 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-734 | Denver | Onvoy (Sinch) | VoIP | 1 |
| 720-735 | Keenesburg | Onvoy (Sinch) | VoIP | 0 |
| 720-736 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-737 | Denver | Verizon Wireless | Wireless | 0 |
| 720-738 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-739 | Denver | Bandwidth | VoIP | 0 |
| 720-740 | Deckers | Hd Carrier | Landline | 1 |
| 720-741 | Georgetown | Onvoy (Sinch) | VoIP | 0 |
| 720-742 | Denver | T-Mobile | Wireless | 0 |
| 720-743 | Longmont | Bandwidth | VoIP | 1 |
| 720-744 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-745 | Longmont | Lumen (Level 3) | VoIP | 0 |
| 720-746 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-747 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-748 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-749 | Denver | Peerless Network | VoIP | 0 |
| 720-750 | Denver | T-Mobile | Wireless | 0 |
| 720-751 | Denver | T-Mobile | Wireless | 0 |
| 720-752 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-753 | Fort Lupton | AT&T Mobility | Wireless | 0 |
| 720-754 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-755 | Denver | T-Mobile | Wireless | 0 |
| 720-756 | Denver | T-Mobile | Wireless | 0 |
| 720-757 | Denver | T-Mobile | Wireless | 0 |
| 720-758 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-759 | Longmont | Bandwidth | VoIP | 0 |
| 720-760 | Denver | Twilio | VoIP | 0 |
| 720-761 | Denver | T-Mobile | Wireless | 0 |
| 720-762 | Denver | Verizon Wireless | Wireless | 0 |
| 720-763 | Denver | AT&T Mobility | Wireless | 0 |
| 720-764 | Hudson | Onvoy (Sinch) | VoIP | 0 |
| 720-765 | Denver | Verizon Wireless | Wireless | 0 |
| 720-766 | Denver | Fractel | VoIP | 0 |
| 720-767 | Denver | T-Mobile | Wireless | 0 |
| 720-768 | Denver | Commio | VoIP | 0 |
| 720-769 | Denver | Vonage | VoIP | 0 |
| 720-770 | Deckers | Bandwidth | VoIP | 0 |
| 720-771 | Denver | T-Mobile | Wireless | 0 |
| 720-772 | Denver | Allstream | Landline | 0 |
| 720-773 | Denver | Verizon Business | VoIP | 0 |
| 720-774 | Denver | AT&T Mobility | Wireless | 0 |
| 720-775 | Denver | AT&T Mobility | Wireless | 0 |
| 720-776 | Deckers | Peerless Network | VoIP | 0 |
| 720-777 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-778 | Denver | Bandwidth | VoIP | 0 |
| 720-779 | Denver | Bandwidth | VoIP | 0 |
| 720-780 | Denver | Onvoy (Sinch) | VoIP | 1 |
| 720-781 | Longmont | T-Mobile | Wireless | 0 |
| 720-782 | Hudson | AT&T | Landline | 0 |
| 720-783 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-784 | Georgetown | Onvoy (Sinch) | VoIP | 2 |
| 720-785 | Denver | AT&T | VoIP | 0 |
| 720-786 | Denver | T-Mobile | Wireless | 0 |
| 720-787 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-788 | Denver | Verizon Wireless | Wireless | 0 |
| 720-789 | Denver | Lumen (Level 3) | VoIP | 1 |
| 720-790 | Onvoy (Sinch) | VoIP | 0 | |
| 720-791 | Georgetown | Telnyx | VoIP | 0 |
| 720-792 | Denver | Onvoy (Sinch) | VoIP | 3 |
| 720-793 | Denver | Verizon Wireless | Wireless | 0 |
| 720-794 | Onvoy (Sinch) | VoIP | 0 | |
| 720-795 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-796 | Georgetown | Nuso | Landline | 1 |
| 720-797 | Keenesburg | Bandwidth | VoIP | 0 |
| 720-798 | Denver | Bandwidth | VoIP | 0 |
| 720-799 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-800 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-801 | Georgetown | Hd Carrier | Landline | 0 |
| 720-802 | Fort Lupton | Onvoy (Sinch) | VoIP | 0 |
| 720-803 | Denver | T-Mobile | Wireless | 0 |
| 720-804 | Longmont | T-Mobile | Wireless | 0 |
| 720-805 | Denver | Voip Innovations | VoIP | 0 |
| 720-806 | Deckers | Peerless Network | VoIP | 1 |
| 720-807 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-808 | Denver | Bandwidth | VoIP | 0 |
| 720-809 | Denver | T-Mobile (Metro) | Wireless | 0 |
| 720-810 | Denver | Verizon Wireless | Wireless | 0 |
| 720-812 | Denver | Verizon Wireless | Wireless | 0 |
| 720-813 | Denver | IP Horizon | VoIP | 0 |
| 720-814 | Deer Trail | Verizon Wireless | Wireless | 0 |
| 720-815 | Longmont | Comcast (Xfinity) | VoIP | 0 |
| 720-816 | Onvoy (Sinch) | VoIP | 0 | |
| 720-817 | Strasburg | Comcast (Xfinity) | VoIP | 2 |
| 720-818 | Longmont | Verizon Wireless | Wireless | 0 |
| 720-819 | Denver | T-Mobile | Wireless | 0 |
| 720-820 | Denver | Wide Voice | Landline | 0 |
| 720-821 | Longmont | Onvoy (Sinch) | VoIP | 1 |
| 720-822 | Denver | Verizon Wireless | Wireless | 0 |
| 720-823 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-824 | Hudson | Vonage | VoIP | 1 |
| 720-825 | Denver | Hd Carrier | Landline | 0 |
| 720-826 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-827 | Denver | T-Mobile | Wireless | 0 |
| 720-828 | Denver | T-Mobile | Wireless | 0 |
| 720-829 | Denver | T-Mobile (Metro) | Wireless | 1 |
| 720-830 | Denver | Hd Carrier | Landline | 0 |
| 720-831 | Denver | AT&T | VoIP | 0 |
| 720-832 | Hudson | Onvoy (Sinch) | VoIP | 0 |
| 720-833 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-834 | Denver | AT&T | VoIP | 0 |
| 720-835 | Denver | AT&T Mobility | Wireless | 0 |
| 720-836 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-837 | Denver | T-Mobile | Wireless | 0 |
| 720-838 | Denver | T-Mobile | Wireless | 0 |
| 720-839 | Denver | T-Mobile | Wireless | 0 |
| 720-840 | Denver | T-Mobile | Wireless | 0 |
| 720-841 | Denver | T-Mobile | Wireless | 0 |
| 720-842 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-843 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-844 | Denver | Leap Telecom | Landline | 0 |
| 720-845 | Denver | T-Mobile | Wireless | 0 |
| 720-846 | Deer Trail | Verizon Wireless | Wireless | 0 |
| 720-847 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-848 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-849 | Denver | T-Mobile | Wireless | 0 |
| 720-850 | Denver | Five9 | Landline | 0 |
| 720-851 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-852 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-853 | Longmont | Bandwidth | VoIP | 0 |
| 720-854 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-855 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-856 | Fort Lupton | Onvoy (Sinch) | VoIP | 0 |
| 720-857 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-858 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-859 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-860 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-861 | Georgetown | Bandwidth | VoIP | 0 |
| 720-862 | Denver | Verizon Business | VoIP | 0 |
| 720-863 | Denver | Verizon Business | VoIP | 0 |
| 720-864 | Longmont | Lumen (CenturyLink) | Landline | 0 |
| 720-865 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-866 | Denver | Terra Nova Telecom | Landline | 0 |
| 720-868 | Fort Lupton | Onvoy (Sinch) | VoIP | 0 |
| 720-869 | Denver | AT&T Mobility | Wireless | 0 |
| 720-870 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-871 | Longmont | T-Mobile | Wireless | 0 |
| 720-872 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-873 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-874 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-875 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-876 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-877 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-878 | Denver | AT&T Mobility | Wireless | 0 |
| 720-879 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-880 | Denver | Verizon Wireless | Wireless | 0 |
| 720-881 | Denver | Bandwidth | VoIP | 0 |
| 720-882 | Denver | AT&T Mobility | Wireless | 0 |
| 720-883 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-884 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-885 | Denver | AT&T Mobility | Wireless | 0 |
| 720-886 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-887 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-888 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-889 | Denver | Verizon Business | VoIP | 0 |
| 720-890 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-891 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-892 | Denver | Bandwidth | VoIP | 0 |
| 720-893 | Bandwidth | VoIP | 0 | |
| 720-894 | Deckers | Bandwidth | VoIP | 1 |
| 720-895 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-896 | Denver | T-Mobile | Wireless | 0 |
| 720-897 | Denver | Lumen (Level 3) | VoIP | 1 |
| 720-898 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-899 | Longmont | Verizon Wireless | Wireless | 0 |
| 720-900 | Denver | Peerless Network | VoIP | 0 |
| 720-901 | Denver | Telnyx | VoIP | 0 |
| 720-902 | Denver | Verizon Wireless | Wireless | 0 |
| 720-903 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-904 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-905 | Denver | Five9 | Landline | 0 |
| 720-906 | Byers | Comcast (Xfinity) | VoIP | 0 |
| 720-907 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-908 | Denver | Verizon Wireless | Wireless | 0 |
| 720-909 | Denver | Bandwidth | VoIP | 0 |
| 720-910 | Denver | Verizon Wireless | Wireless | 0 |
| 720-912 | Denver | Onvoy (Sinch) | VoIP | 0 |
| 720-913 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-914 | Fort Lupton | T-Mobile | Wireless | 0 |
| 720-915 | Vonage | VoIP | 0 | |
| 720-916 | Denver | Verizon Wireless | Wireless | 0 |
| 720-917 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-918 | Keenesburg | Vonage | VoIP | 0 |
| 720-919 | Denver | T-Mobile | Wireless | 0 |
| 720-920 | Denver | AT&T | VoIP | 0 |
| 720-921 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-922 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-923 | Denver | Advanced Telecom Solutions | Landline | 0 |
| 720-924 | Deckers | Lumen (CenturyLink) | Landline | 0 |
| 720-925 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-926 | Denver | Verizon Wireless | Wireless | 0 |
| 720-927 | Longmont | Bandwidth | VoIP | 0 |
| 720-928 | Fort Lupton | Bandwidth | VoIP | 0 |
| 720-929 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-930 | Denver | Verizon Wireless | Wireless | 0 |
| 720-931 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-932 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-933 | Denver | T-Mobile | Wireless | 0 |
| 720-934 | Denver | T-Mobile | Wireless | 0 |
| 720-935 | Denver | T-Mobile | Wireless | 0 |
| 720-936 | Denver | T-Mobile | Wireless | 0 |
| 720-937 | Denver | T-Mobile | Wireless | 0 |
| 720-938 | Denver | T-Mobile | Wireless | 0 |
| 720-939 | Denver | T-Mobile | Wireless | 0 |
| 720-940 | Denver | T-Mobile | Wireless | 0 |
| 720-941 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-942 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-943 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-944 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-945 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-946 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-947 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-948 | Denver | Verizon Wireless | Wireless | 0 |
| 720-949 | Denver | AT&T | VoIP | 0 |
| 720-951 | Denver | Verizon Wireless | Wireless | 0 |
| 720-952 | Deckers | Vonage | VoIP | 0 |
| 720-953 | Denver | T-Mobile | Wireless | 1 |
| 720-954 | Fort Lupton | Verizon Wireless | Wireless | 0 |
| 720-955 | Denver | Verizon Wireless | Wireless | 0 |
| 720-956 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-957 | Denver | T-Mobile | Wireless | 0 |
| 720-960 | Denver | AT&T Mobility | Wireless | 0 |
| 720-961 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-962 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-963 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-964 | Longmont | T-Mobile | Wireless | 0 |
| 720-965 | Denver | T-Mobile | Wireless | 0 |
| 720-966 | Fort Lupton | AT&T Mobility | Wireless | 0 |
| 720-967 | Denver | Leap Telecom | Landline | 0 |
| 720-968 | Denver | AT&T Mobility | Wireless | 0 |
| 720-969 | Denver | AT&T Mobility | Wireless | 0 |
| 720-970 | Longmont | Bandwidth | VoIP | 0 |
| 720-971 | Denver | T-Mobile | Wireless | 0 |
| 720-972 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-973 | Denver | Hadlo Technologies | Landline | 0 |
| 720-974 | Denver | Allstream | Landline | 0 |
| 720-975 | Denver | Allstream | Landline | 0 |
| 720-977 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-978 | Denver | Nuso | Landline | 0 |
| 720-979 | Denver | T-Mobile | Wireless | 0 |
| 720-980 | Denver | T-Mobile | Wireless | 0 |
| 720-981 | Denver | Lumen (CenturyLink) | Landline | 0 |
| 720-982 | Denver | T-Mobile | Wireless | 0 |
| 720-983 | Denver | AT&T Mobility | Wireless | 0 |
| 720-984 | Denver | T-Mobile | Wireless | 0 |
| 720-985 | Denver | T-Mobile | Wireless | 0 |
| 720-986 | Longmont | Bandwidth | VoIP | 0 |
| 720-987 | Denver | T-Mobile | Wireless | 0 |
| 720-988 | Denver | T-Mobile | Wireless | 0 |
| 720-989 | Denver | T-Mobile | Wireless | 0 |
| 720-990 | Denver | Lumen (Level 3) | VoIP | 0 |
| 720-991 | Deckers | Commio | VoIP | 0 |
| 720-992 | Denver | AT&T | VoIP | 0 |
| 720-993 | Denver | AT&T Mobility | Wireless | 0 |
| 720-994 | Denver | T-Mobile | Wireless | 0 |
| 720-995 | Denver | Eon Telecom | Landline | 0 |
| 720-996 | Denver | Commio | VoIP | 0 |
| 720-997 | Bennett | Comcast (Xfinity) | VoIP | 0 |
| 720-998 | Denver | Comcast (Xfinity) | VoIP | 0 |
| 720-999 | Denver | T-Mobile | Wireless | 0 |
Area code 720 questions
Where is area code 720?
Area code 720 is in Colorado. Its biggest rate centers are Denver, Longmont, Fort Lupton, Georgetown, Deckers.
What time zone is area code 720?
Area code 720 is in the Mountain time zone.
Is a call from area code 720 a scam?
An area code alone can't tell you. Scammers use and spoof numbers in every area code. 37 720 numbers have been flagged on ShadyCall. Look up the full number to see its reports and FTC/FCC complaints.
What carriers use area code 720?
Of its 785 exchanges, the most were assigned to T-Mobile, Lumen (CenturyLink), AT&T Mobility. Numbers can be ported to any carrier, so the exchange shows the original carrier only.
What area codes overlay 720?
720 shares its area with 303, 983. In an overlay, new numbers get the newer codes and you dial all ten digits.