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720 Area Code

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

In service since June 01, 1998, area code 720 is an overlay Numbering Plan Area, part of overlay complex 303/720/983 (overlaying NPAs cover the same area).

The current time for places served by area code 720 is 04:32:01 PM (Mountain Time Zone).

Reverse phone lookup

Map of area code 720

More Colorado area codes

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
720-816	Allenspark/ Lyons	03/29/2023
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
720-832	Hudson	03/29/2023
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
720-915	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
720-973	Denver	03/06/2023
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
720-983	Denver	05/25/2023
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
720-995	Denver	12/28/2022
720-996	Denver	3/15/2017
720-997	Bennett	3/25/2022
720-998	Denver	12/1/2006
720-999	Denver	7/22/2008

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.
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

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.
M stands for Mountain Time Zone (currently 04:32:01 PM).

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720 Area Code

Reverse phone lookup

Map of area code 720

More Colorado area codes

720 phone number location

720-2XX-XXXX

720-3XX-XXXX

720-4XX-XXXX

720-5XX-XXXX

720-6XX-XXXX

720-9XX-XXXX

Cities in area code 720