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720 Area Code

Area code 720 is in Colorado (CO), USA and some of its main locations are Denver, Thornton, Arvada, etc. (jump to city list below).

Area code 720 has been in service since June 01, 1998 and is an overlay code part of overlay complex 303/720/983 (overlaying area codes cover the same geographic area).

11:04:18 PM is the current time in area code 720 (Mountain Time Zone).

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720 phone number location

NPANXX Area served1 Date2
720-200 Denver N/A
720-201 Denver N/A
720-202 Denver 10/7/2009
720-203 Denver 1/29/2001
720-204 Longmont N/A
720-205 Denver N/A
720-206 Denver N/A
720-207 Denver N/A
720-208 Denver N/A
720-209 Denver N/A
720-210 Denver N/A
720-212 Denver N/A
720-213 Denver N/A
720-214 Denver N/A
720-215 Denver 10/12/2009
720-216 Denver 1/29/2001
720-217 Denver N/A
720-218 Denver N/A
720-219 Denver N/A
720-220 Denver N/A
720-221 Denver N/A
720-222 Denver N/A
720-223 Denver N/A
720-224 Denver N/A
720-225 Denver N/A
720-226 Denver N/A
720-227 Denver N/A
720-228 Denver N/A
720-229 Denver N/A
720-230 Denver N/A
720-231 Denver N/A
720-232 Denver N/A
720-233 Denver N/A
720-234 Denver N/A
720-235 Denver N/A
720-236 Denver N/A
720-237 Denver 9/28/2009
720-238 Denver N/A
720-239 Denver N/A
720-240 Denver N/A
720-241 Denver N/A
720-242 Denver 10/9/2008
720-243 Denver 6/30/2009
720-244 Denver N/A
720-245 Denver 11/21/2011
720-246 Denver N/A
720-247 Denver 5/20/2004
720-248 Denver N/A
720-249 Denver N/A
720-250 Denver N/A
720-251 Denver N/A
720-252 Denver N/A
720-253 Denver N/A
720-254 Denver N/A
720-255 Denver N/A
720-256 Denver N/A
720-257 Denver N/A
720-258 Denver N/A
720-259 Denver N/A
720-260 Denver N/A
720-261 Denver N/A
720-262 Denver N/A
720-263 Denver N/A
720-264 Denver N/A
720-265 Denver 5/3/2004
720-266 Denver N/A
720-267 Denver N/A
720-268 Denver N/A
720-269 Denver N/A
720-270 Denver N/A
720-271 Denver N/A
720-272 Denver 1/18/2001
720-273 Denver 1/18/2001
720-274 Denver N/A
720-275 Denver 2/22/2001
720-276 Denver 2/22/2001
720-277 Denver N/A
720-278 Denver 1/25/2001
720-279 Denver 1/25/2001
720-280 Denver N/A
720-281 Denver N/A
720-282 Denver 1/25/2001
720-283 Denver N/A
720-284 Denver N/A
720-285 Denver 1/30/2009
720-286 Denver 4/30/2002
720-287 Denver 4/30/2010
720-288 Denver 2/26/2010
720-289 Denver 7/25/2001
720-290 Denver N/A
720-291 Denver N/A
720-292 Denver 3/4/2009
720-293 Denver N/A
720-294 Denver N/A
720-295 Denver 3/1/2010
720-296 Denver 1/12/2001
720-297 Denver 1/12/2001
720-298 Denver 1/12/2001
720-299 Denver N/A

NPANXX Area served1 Date2
720-300 Denver N/A
720-301 Denver N/A
720-302 Denver N/A
720-304 Denver N/A
720-305 Denver 1/29/2001
720-306 Denver 1/29/2001
720-307 Allenspark/ Lyons 8/2/2012
720-308 Denver 8/14/2001
720-309 Denver 12/5/2001
720-310 Allenspark/ Lyons N/A
720-312 Denver 2/20/2001
720-313 Denver 2/20/2001
720-314 Denver 2/20/2001
720-315 Denver 10/14/2009
720-316 Denver 5/24/2010
720-317 Denver N/A
720-318 Denver N/A
720-319 Denver 4/19/2001
720-320 Denver N/A
720-321 Denver 5/29/2008
720-322 Denver N/A
720-323 Denver N/A
720-324 Denver N/A
720-325 Denver 8/6/2010
720-326 Denver 6/13/2011
720-327 Denver 10/18/2001
720-328 Denver 10/20/2009
720-329 Denver 10/18/2001
720-330 Denver N/A
720-331 Denver N/A
720-332 Denver N/A
720-333 Denver 5/14/2001
720-334 Denver 5/14/2001
720-335 Denver 5/14/2001
720-336 Keenesburg 7/19/2010
720-337 Denver 2/18/2009
720-338 Denver 11/19/2001
720-339 Denver N/A
720-340 Longmont 9/4/2009
720-341 Denver N/A
720-342 Denver 4/15/2009
720-343 Denver 10/31/2003
720-344 Denver N/A
720-345 Denver 12/28/2007
720-346 Denver N/A
720-347 Denver 9/28/2009
720-348 Denver N/A
720-349 Denver 3/28/2011
720-350 Denver N/A
720-351 Denver N/A
720-352 Denver N/A
720-353 Denver N/A
720-354 Denver 6/30/2011
720-355 Denver 8/16/2012
720-356 Denver N/A
720-357 Denver 7/5/2012
720-358 Hudson 9/9/2009
720-359 Denver N/A
720-360 Denver 1/28/2013
720-361 Denver 7/3/2013
720-362 Denver 6/6/2007
720-363 Denver N/A
720-364 Denver 1/15/2002
720-365 Denver 1/15/2002
720-366 Denver 1/15/2002
720-367 Denver N/A
720-368 Denver 4/30/2004
720-369 Denver 3/14/2011
720-370 Denver 1/4/2013
720-371 Denver N/A
720-372 Denver 9/9/2013
720-373 Denver N/A
720-374 Denver N/A
720-375 Denver 7/10/2007
720-376 Denver 11/12/2012
720-377 Denver N/A
720-378 Longmont 1/19/2010
720-379 Denver N/A
720-380 Denver 2/1/2013
720-381 Denver 8/3/2005
720-382 Denver N/A
720-383 Fort Lupton 11/13/2008
720-384 Denver N/A
720-385 Denver N/A
720-386 Georgetown 12/3/2012
720-387 Denver 9/4/2012
720-388 Denver 1/11/2010
720-389 Denver 11/17/2008
720-390 Denver 7/18/2013
720-391 Denver 7/12/2013
720-392 Deer Trail 1/30/2009
720-393 Denver 6/7/2010
720-394 Denver N/A
720-395 Denver 9/4/2009
720-396 Denver 9/8/2009
720-397 Denver 9/8/2009
720-398 Denver 6/28/2010
720-399 Denver 5/6/2011

NPANXX Area served1 Date2
720-400 Denver 10/28/2010
720-401 Denver 1/13/2009
720-402 Denver 5/10/2011
720-403 Denver 7/25/2013
720-404 Denver 10/18/2001
720-405 Denver 8/30/2013
720-406 Denver N/A
720-407 Denver N/A
720-408 Denver 11/15/2012
720-409 Denver 11/22/2011
720-410 Denver 6/27/2014
720-412 Denver 6/28/2010
720-413 Denver 8/27/2008
720-414 Allenspark/ Lyons 10/4/2011
720-415 Denver 6/12/2013
720-416 Denver 6/30/2014
720-417 Denver 8/18/2014
720-418 Denver 3/12/2014
720-419 Denver 3/16/2016
720-420 Denver 5/26/2010
720-421 Denver 3/20/2009
720-422 Denver 9/26/2001
720-423 Denver 4/22/2004
720-424 Denver 4/22/2004
720-425 Denver 1/15/2008
720-426 Denver 4/20/2010
720-427 Denver 2/4/2002
720-428 Denver 12/12/2011
720-429 Denver 7/2/2008
720-430 Denver 6/28/2012
720-431 Denver 9/22/2010
720-432 Denver 2/26/2010
720-433 Denver N/A
720-434 Denver N/A
720-435 Denver N/A
720-436 Denver N/A
720-437 Denver 2/8/2011
720-438 Longmont 9/26/2006
720-439 Denver 4/21/2010
720-440 Denver 5/12/2010
720-441 Denver 5/18/2011
720-442 Longmont 4/4/2011
720-443 Denver 10/7/2010
720-444 Denver N/A
720-445 Denver 9/15/2010
720-446 Denver 2/23/2011
720-447 Denver 2/22/2008
720-448 Denver 4/9/2008
720-449 Denver N/A
720-450 Denver 1/8/2014
720-451 Denver 10/25/2013
720-452 Denver 12/28/2010
720-453 Longmont N/A
720-454 Denver 8/11/2010
720-455 Denver 7/2/2010
720-456 Denver 7/23/2013
720-457 Denver N/A
720-458 Denver 9/27/2010
720-459 Denver 10/15/2010
720-460 Denver 11/13/2013
720-461 Denver 12/22/2015
720-462 Denver 11/23/2016
720-463 Deckers 2/5/2013
720-464 Denver 4/21/2011
720-465 Denver 1/3/2012
720-466 Fort Lupton 6/28/2010
720-467 Denver 1/10/2014
720-468 Denver 12/17/2001
720-469 Denver 9/23/2011
720-470 Denver N/A
720-471 Denver 6/12/2014
720-472 Denver N/A
720-473 Denver N/A
720-474 Denver 10/31/2011
720-475 Denver N/A
720-476 Denver 5/19/2014
720-477 Denver 8/9/2011
720-478 Denver 5/8/2013
720-479 Denver N/A
720-480 Denver N/A
720-481 Denver 8/15/2014
720-482 Denver N/A
720-483 Denver 8/4/2014
720-484 Denver 7/18/2011
720-485 Denver 5/8/2014
720-486 Denver 8/18/2014
720-487 Longmont 12/9/2016
720-488 Denver N/A
720-489 Denver N/A
720-490 Denver N/A
720-491 Longmont 11/16/2011
720-492 Denver 8/25/2014
720-493 Denver N/A
720-494 Longmont N/A
720-495 Denver 9/28/2001
720-496 Denver 12/17/2001
720-497 Denver N/A
720-498 Denver 9/10/2012
720-499 Denver 8/9/2011

NPANXX Area served1 Date2
720-500 Denver 10/7/2014
720-501 Denver 8/28/2014
720-502 Denver 11/15/2012
720-503 Denver 10/2/2014
720-504 Denver 5/24/2013
720-505 Denver 1/11/2011
720-506 Denver 12/17/2001
720-507 Denver 10/30/2014
720-508 Denver 6/26/2012
720-509 Denver 4/2/2010
720-510 Denver 6/13/2017
720-512 Denver 5/9/2016
720-513 Denver 8/25/2017
720-514 Denver N/A
720-515 Denver 2/11/2010
720-516 Denver 7/21/2017
720-517 Denver 6/30/2015
720-518 Denver 5/16/2014
720-519 Denver N/A
720-520 Denver 5/13/2016
720-521 Denver N/A
720-522 Denver 11/19/2010
720-523 Denver 5/24/2010
720-524 Denver N/A
720-525 Denver 4/2/2013
720-526 Longmont 6/12/2014
720-527 Denver 10/27/2017
720-528 Denver N/A
720-529 Denver N/A
720-530 Denver N/A
720-531 Denver 8/16/2016
720-532 Denver N/A
720-533 Denver N/A
720-534 Longmont 8/31/2016
720-535 Denver N/A
720-536 Denver N/A
720-537 Denver 10/22/2014
720-538 Fort Lupton 9/24/2012
720-539 Denver 7/8/2011
720-540 Denver N/A
720-541 Denver 9/28/2012
720-542 Denver N/A
720-543 Denver 10/14/2016
720-544 Denver N/A
720-545 Denver 6/12/2009
720-546 Denver 8/23/2016
720-547 Keenesburg 3/30/2018
720-548 Denver N/A
720-549 Denver N/A
720-550 Denver 6/25/2013
720-551 Denver 4/1/2011
720-552 Longmont 11/16/2012
720-553 Denver 6/22/2012
720-554 Denver N/A
720-556 Denver 5/10/2011
720-557 Denver 6/12/2013
720-558 Denver 3/13/2002
720-559 Denver N/A
720-560 Denver N/A
720-561 Denver 4/18/2008
720-562 Denver N/A
720-563 Denver N/A
720-564 Denver N/A
720-565 Denver N/A
720-566 Denver N/A
720-567 Denver N/A
720-568 Denver 2/27/2001
720-569 Denver 10/8/2008
720-570 Denver N/A
720-571 Allenspark/ Lyons 3/1/2016
720-572 Denver 12/14/2016
720-573 Denver 10/17/2014
720-574 Denver 6/29/2018
720-575 Denver 11/11/2014
720-576 Denver 11/9/2016
720-577 Denver 7/3/2014
720-578 Denver N/A
720-579 Denver N/A
720-580 Keenesburg 3/15/2013
720-581 Denver N/A
720-582 Denver 11/12/2015
720-583 Denver 9/30/2010
720-584 Denver 10/21/2014
720-585 Denver 11/2/2012
720-586 Denver 5/25/2017
720-587 Denver N/A
720-588 Denver 10/17/2012
720-589 Denver 4/30/2013
720-590 Denver 2/5/2013
720-591 Denver 9/15/2016
720-592 Denver 12/8/2016
720-593 Denver 4/2/2014
720-594 Denver 6/30/2017
720-595 Denver 5/10/2016
720-596 Denver N/A
720-597 Longmont 1/11/2016
720-598 Denver 2/26/2015
720-599 Denver 2/13/2012

NPANXX Area served1 Date2
720-600 Longmont 12/20/2012
720-601 Denver 12/21/2017
720-602 Denver 7/31/2017
720-603 Denver 9/1/2017
720-604 Strasburg N/A
720-605 Denver 11/17/2015
720-606 Fort Lupton 8/12/2011
720-607 Denver 3/16/2017
720-608 Georgetown 7/19/2010
720-609 Denver 6/3/2014
720-610 Denver 7/30/2018
720-612 Denver 7/22/2011
720-613 Hudson 3/1/2013
720-614 Denver 10/4/2018
720-615 Keenesburg 8/17/2020
720-616 Denver 8/29/2014
720-617 Denver 4/18/2019
720-618 Denver 7/10/2014
720-619 Georgetown 3/25/2014
720-620 Denver 3/27/2002
720-621 Denver 3/27/2002
720-622 Denver N/A
720-623 Denver 2/17/2012
720-624 Denver N/A
720-625 Denver 9/20/2011
720-626 Denver 1/11/2011
720-627 Denver 3/6/2012
720-628 Denver 3/4/2002
720-629 Denver 3/4/2002
720-630 Denver 10/23/2013
720-631 Denver 4/3/2017
720-632 Denver 1/11/2018
720-633 Denver 12/28/2010
720-634 Denver 11/16/2012
720-635 Denver N/A
720-636 Denver 11/13/2013
720-637 Denver 10/21/2021
720-638 Denver 1/17/2013
720-639 Denver 5/14/2014
720-640 Hudson 1/28/2019
720-641 Denver N/A
720-642 Denver 10/22/2015
720-643 Denver 8/24/2015
720-644 Denver 4/1/2011
720-645 Denver 3/5/2014
720-646 Denver 10/7/2015
720-647 Denver 5/20/2019
720-648 Denver 5/10/2011
720-649 Georgetown 8/30/2018
720-650 Denver 8/17/2017
720-651 Denver 10/15/2015
720-652 Longmont N/A
720-653 Denver 6/3/2019
720-654 Denver 1/10/2022
720-655 Denver 8/30/2021
720-656 Denver 10/7/2015
720-657 Denver 2/25/2019
720-658 Denver 3/26/2010
720-659 Denver 7/15/2022
720-660 Denver 4/8/2014
720-661 Denver 12/24/2018
720-662 Denver 9/30/2014
720-663 Denver 5/28/2008
720-664 Allenspark/ Lyons 8/16/2019
720-665 Denver 8/30/2017
720-666 Denver 5/23/2012
720-667 Denver 11/21/2017
720-668 Denver 10/16/2014
720-669 Hudson 12/12/2014
720-670 Denver N/A
720-671 Denver 4/25/2019
720-672 Denver 9/30/2019
720-673 Denver 8/23/2019
720-674 Denver 2/20/2020
720-675 Denver 5/12/2009
720-676 Denver 8/29/2016
720-677 Denver 6/20/2019
720-678 Denver 10/9/2019
720-679 Georgetown 8/16/2019
720-680 Longmont 6/4/2020
720-681 Denver 4/9/2019
720-682 Denver 10/22/2018
720-683 Fort Lupton 5/15/2013
720-684 Longmont N/A
720-685 Denver N/A
720-686 Denver 10/14/2010
720-687 Denver 11/19/2019
720-688 Denver 7/15/2015
720-689 Denver 4/4/2011
720-690 Denver 3/27/2002
720-691 Denver 6/25/2019
720-692 Denver 5/27/2015
720-693 Denver 1/11/2017
720-694 Denver 3/24/2020
720-695 Denver 8/12/2014
720-696 Denver 6/1/2015
720-697 Denver 11/9/2015
720-698 Longmont 3/15/2022
720-699 Denver 11/11/2014
NPANXX Area served1 Date2
720-701 Denver 4/16/2019
720-702 Keenesburg 3/27/2020
720-703 Denver 6/19/2020
720-704 Denver 3/31/2020
720-705 Denver 10/2/2014
720-706 Denver 7/13/2020
720-707 Denver 11/21/2014
720-708 Denver 8/12/2011
720-709 Denver 8/21/2014
720-710 Denver 9/7/2016
720-712 Fort Lupton 6/20/2019
720-713 Longmont 8/16/2019
720-714 Longmont 8/24/2020
720-715 Deckers 2/8/2019
720-716 Denver 3/25/2020
720-717 Denver 3/3/2015
720-718 Longmont 12/19/2016
720-721 Denver N/A
720-722 Denver 5/21/2010
720-723 Denver 2/4/2013
720-724 Denver 4/2/2013
720-725 Denver 6/10/2015
720-726 Denver 10/29/2013
720-727 Longmont 6/12/2018
720-728 Denver 12/16/2015
720-729 Keenesburg 3/2/2012
720-730 Denver 9/20/2018
720-731 Longmont 1/4/2019
720-732 Denver N/A
720-733 Denver N/A
720-734 Denver 5/11/2020
720-735 Keenesburg 10/28/2014
720-736 Denver 1/21/2021
720-737 Denver 12/13/2012
720-738 Denver 4/29/2019
720-739 Denver 4/29/2014
720-740 Deckers 8/29/2019
720-741 Georgetown 8/19/2020
720-742 Denver 9/11/2020
720-743 Longmont 9/21/2020
720-744 Denver N/A
720-745 Longmont 4/17/2015
720-746 Denver N/A
720-747 Denver N/A
720-748 Denver N/A
720-749 Denver 9/25/2015
720-750 Denver 1/28/2019
720-751 Denver 1/9/2020
720-752 Denver 8/17/2020
720-753 Fort Lupton 12/1/2015
720-754 Denver 3/30/2010
720-755 Denver 9/1/2015
720-756 Denver 11/24/2020
720-757 Denver 9/30/2014
720-758 Denver 12/20/2016
720-759 Longmont 8/10/2016
720-760 Denver 10/15/2020
720-761 Denver 10/5/2020
720-762 Denver 7/18/2019
720-763 Denver 11/5/2009
720-764 Hudson 10/23/2020
720-765 Denver 9/29/2017
720-766 Denver 1/25/2019
720-767 Denver 7/14/2014
720-768 Denver 11/14/2017
720-769 Denver 9/3/2020
720-770 Deckers 9/30/2014
720-771 Denver N/A
720-772 Denver 10/15/2014
720-773 Denver 2/9/2015
720-774 Denver 6/4/2015
720-775 Denver 10/14/2009
720-776 Deckers 2/14/2019
720-777 Denver 2/9/2006
720-778 Denver 9/30/2014
720-779 Denver 6/12/2019
720-780 Denver 12/16/2019
720-781 Longmont 11/24/2020
720-782 Hudson 7/2/2019
720-783 Denver 8/5/2022
720-784 Georgetown 12/31/2020
720-785 Denver N/A
720-786 Denver 8/12/2022
720-787 Denver 8/23/2016
720-788 Denver 1/6/2017
720-789 Denver 8/5/2011
720-790 Allenspark/ Lyons 8/18/2020
720-791 Georgetown 3/16/2017
720-792 Denver 11/9/2020
720-793 Denver 11/13/2018
720-794 Allenspark/ Lyons 1/15/2021
720-795 Denver 6/21/2017
720-796 Georgetown 12/11/2020
720-797 Keenesburg 5/22/2019
720-798 Denver 4/21/2020
720-799 Denver 3/13/2015
NPANXX Area served1 Date2
720-800 Denver 11/8/2012
720-801 Georgetown 9/26/2022
720-802 Fort Lupton 8/19/2020
720-803 Denver 1/14/2021
720-804 Longmont 3/5/2021
720-805 Denver 8/15/2018
720-806 Deckers 2/24/2021
720-807 Denver 8/27/2020
720-808 Denver 10/20/2010
720-809 Denver 8/22/2014
720-810 Denver N/A
720-812 Denver 3/24/2020
720-813 Denver 3/5/2021
720-814 Deer Trail 9/7/2021
720-815 Longmont 9/1/2017
720-817 Strasburg 9/24/2021
720-818 Longmont 9/1/2017
720-819 Denver 3/9/2018
720-820 Denver 9/28/2015
720-821 Longmont 1/6/2021
720-822 Denver 5/12/2014
720-823 Denver 1/8/2021
720-824 Hudson 10/20/2021
720-825 Denver 9/23/2022
720-826 Denver 7/30/2019
720-827 Denver 3/22/2018
720-828 Denver 11/12/2018
720-829 Denver 7/29/2014
720-830 Denver 12/3/2018
720-831 Denver 10/25/2021
720-833 Denver N/A
720-834 Denver N/A
720-835 Denver 9/25/2015
720-836 Denver N/A
720-837 Denver N/A
720-838 Denver N/A
720-839 Denver N/A
720-840 Denver N/A
720-841 Denver N/A
720-842 Denver N/A
720-843 Denver 10/21/2021
720-844 Denver 1/25/2021
720-845 Denver 8/30/2017
720-846 Deer Trail 6/22/2022
720-847 Denver 11/5/2003
720-848 Denver N/A
720-849 Denver N/A
720-850 Denver 5/27/2021
720-851 Denver N/A
720-852 Denver N/A
720-853 Longmont 10/25/2021
720-854 Denver N/A
720-855 Denver N/A
720-856 Fort Lupton 10/25/2021
720-857 Denver N/A
720-858 Denver N/A
720-859 Denver N/A
720-860 Denver 8/12/2022
720-861 Georgetown 10/26/2021
720-862 Denver N/A
720-863 Denver N/A
720-864 Longmont N/A
720-865 Denver N/A
720-866 Denver 2/22/2019
720-868 Fort Lupton 4/1/2021
720-869 Denver 10/25/2021
720-870 Denver N/A
720-871 Longmont 11/18/2021
720-872 Denver N/A
720-873 Denver N/A
720-874 Denver N/A
720-875 Denver N/A
720-876 Denver N/A
720-877 Denver N/A
720-878 Denver N/A
720-879 Denver N/A
720-880 Denver N/A
720-881 Denver N/A
720-882 Denver N/A
720-883 Denver N/A
720-884 Denver N/A
720-885 Denver 2/4/2010
720-886 Denver N/A
720-887 Denver N/A
720-888 Denver N/A
720-889 Denver N/A
720-890 Denver N/A
720-891 Denver 12/17/2001
720-892 Denver 3/20/2018
720-893 Allenspark/ Lyons 8/8/2014
720-894 Deckers 10/25/2021
720-895 Denver N/A
720-896 Denver 11/12/2021
720-897 Denver N/A
720-898 Denver N/A
720-899 Longmont 11/10/2014

NPANXX Area served1 Date2
720-900 Denver 10/7/2014
720-901 Denver 11/17/2021
720-902 Denver 5/1/2019
720-903 Denver N/A
720-904 Denver N/A
720-905 Denver 1/26/2022
720-906 Byers 12/3/2021
720-907 Denver N/A
720-908 Denver 5/15/2017
720-909 Denver N/A
720-910 Denver 3/25/2022
720-912 Denver 10/5/2020
720-913 Denver N/A
720-914 Longmont 5/6/2022
720-915 Allenspark/ Lyons 6/24/2022
720-916 Denver 7/6/2022
720-917 Denver N/A
720-918 Keenesburg 6/24/2022
720-919 Denver 8/23/2016
720-920 Denver N/A
720-921 Denver N/A
720-922 Denver N/A
720-923 Denver 8/22/2018
720-924 Deckers N/A
720-925 Denver 12/18/2015
720-926 Denver 6/14/2018
720-927 Longmont 3/27/2019
720-928 Fort Lupton 5/15/2018
720-929 Denver N/A
720-930 Denver 8/27/2015
720-931 Denver N/A
720-932 Denver N/A
720-933 Denver N/A
720-934 Denver N/A
720-935 Denver N/A
720-936 Denver N/A
720-937 Denver N/A
720-938 Denver N/A
720-939 Denver N/A
720-940 Denver N/A
720-941 Denver N/A
720-942 Denver N/A
720-943 Denver N/A
720-944 Denver N/A
720-945 Denver N/A
720-946 Denver N/A
720-947 Denver N/A
720-948 Denver 6/22/2022
720-949 Denver N/A
720-951 Denver N/A
720-952 Deckers 6/24/2022
720-953 Denver 7/21/2022
720-954 Fort Lupton 9/16/2022
720-955 Denver 7/9/2015
720-956 Denver N/A
720-957 Denver 1/27/2022
720-960 Denver 8/17/2022
720-961 Denver N/A
720-962 Denver N/A
720-963 Denver N/A
720-964 Longmont 9/20/2022
720-965 Denver 6/7/2013
720-966 Fort Lupton 10/2/2014
720-967 Denver 9/21/2022
720-968 Denver 8/17/2022
720-969 Denver 10/18/2022
720-971 Denver N/A
720-972 Denver 4/23/2002
720-974 Denver N/A
720-975 Denver N/A
720-977 Denver N/A
720-978 Denver 11/15/2022
720-979 Denver N/A
720-980 Denver N/A
720-981 Denver N/A
720-982 Denver N/A
720-984 Denver N/A
720-985 Denver N/A
720-986 Longmont 10/18/2022
720-987 Denver N/A
720-988 Denver N/A
720-989 Denver N/A
720-990 Denver 7/21/2015
720-991 Deckers 10/5/2022
720-992 Denver 1/11/2018
720-993 Denver 10/18/2022
720-994 Denver 11/23/2022
720-996 Denver 3/15/2017
720-997 Bennett 3/25/2022
720-998 Denver 12/1/2006
720-999 Denver 7/22/2008
  1. For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
  2. Assignment date. N/A - mostly CO codes assigned before 2001.
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Cities in area code 720

City1 County Time2
Allenspark Boulder M
Arvada Jefferson M
Aurora Adams M
Bailey Park M
Bennett Adams M
Black Hawk Gilpin M
Bond Eagle M
Boulder Boulder M
Brighton Adams M
Broomfield Broomfield M
Buffalo Creek Jefferson M
Byers Arapahoe M
Castle Rock Douglas M
Central City Gilpin M
Commerce City Adams M
Conifer Jefferson M
Dacono Weld M
Deer Trail Arapahoe M
Denver Adams M
Dumont Clear Creek M
Dupont Adams M
Eastlake Adams M
Elbert El Paso M
Eldorado Springs Boulder M
Elizabeth Elbert M
Empire Clear Creek M
Englewood Arapahoe M
Erie Weld M
Evergreen Jefferson M
Firestone Weld M
Fort Lupton Weld M
Franktown Douglas M
Frederick Weld M
Georgetown Clear Creek M
Golden Jefferson M
Grant Park M
Henderson Adams M
Hereford Weld M
Highlands Ranch Douglas M
Hudson Weld M
Hygiene Boulder M
Idaho Springs Clear Creek M
Idledale Jefferson M
Indian Hills Jefferson M
Jamestown Boulder M
Keenesburg Weld M
Kiowa Elbert M
Kittredge Jefferson M
Lafayette Boulder M
Lakewood Jefferson M
Larkspur Douglas M
Littleton Arapahoe M
Longmont Boulder M
Louisville Boulder M
Louviers Douglas M
Lyons Boulder M
Morrison Jefferson M
Nederland Boulder M
Niwot Boulder M
Parker Douglas M
Pine Jefferson M
Pinecliffe Boulder M
Roggen Weld M
Rollinsville Gilpin M
Sedalia Douglas M
Sedgwick Sedgwick M
Shawnee Park M
Silver Plume Clear Creek M
Strasburg Adams M
Thornton Adams M
Ward Boulder M
Watkins Adams M
Westminster Adams M
Wheat Ridge Jefferson M
  1. Listed above are most places served by area code 720. When multiple places in a state/province share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. M stands for Mountain Time Zone (currently 11:04:18 PM).
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