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423 Area Code

Area code 423 is in Tennessee (TN), USA and some of the main locations it covers are Chattanooga, Johnson City, Kingsport, etc. (jump to city list below).

In service date for area code 423: September 11, 1995.

Area code 423 spans two different time zones. The current time is either 05:50:05 PM (Eastern Time Zone) or 04:50:05 PM (Central Time Zone), depending on where you are calling (city list on this page includes time zones).

Reverse phone lookup

Map of area code 423

More Tennessee area codes

423 phone number location

NPANXX	Area served¹	Date²
423-200	Morristown	7/18/2002
423-201	Lafollette	7/18/2002
423-202	Johnson City	12/16/2003
423-203	Chattanooga	2/3/2022
423-205	Etowah	3/9/2016
423-206	Chattanooga	11/30/2018
423-207	Midway	N/A
423-208	Chattanooga	11/1/2006
423-209	Chattanooga	N/A
423-210	Tellico Plains	N/A
423-212	Blountville	7/18/2002
423-213	Elizabethton	11/7/2001
423-214	Englewood	N/A
423-215	Oneida	12/3/2004
423-216	Benton	4/28/2005
423-217	Bristol	7/18/2002
423-218	Johnson City	7/18/2002
423-219	Charleston	10/1/2019
423-220	Erwin	4/4/2001
423-221	Chattanooga	N/A
423-222	Morristown	N/A
423-223	Oneida	11/30/2006
423-224	Kingsport	N/A
423-225	Benton	N/A
423-226	Church Hill	5/28/2010
423-227	Chattanooga	N/A
423-228	South Pittsburgh	N/A
423-229	Kingsport	N/A
423-230	Kingsport	N/A
423-231	Morristown	N/A
423-232	Johnson City	N/A
423-233	Johnson City	N/A
423-234	Baileyton	N/A
423-235	Bulls Gap	N/A
423-236	Apison	N/A
423-237	Newport	N/A
423-238	Ooltewah	N/A
423-239	Midway (Sullivan)	N/A
423-240	Chattanooga	N/A
423-241	Copper Basin	4/11/2003
423-242	Chattanooga	N/A
423-243	Soddy-Daisy	N/A
423-244	Cleveland	N/A
423-245	Kingsport	N/A
423-246	Kingsport	N/A
423-247	Kingsport	N/A
423-248	Newport	N/A
423-249	Fork Ridge	N/A
423-250	Cleveland	4/27/2017
423-251	Kingsport	1/5/2017
423-252	Athens	N/A
423-253	Tellico Plains	N/A
423-254	Morristown	N/A
423-255	Chattanooga	N/A
423-256	Church Hill	N/A
423-257	Limestone	N/A
423-258	Morristown	N/A
423-259	New Tazewell	4/27/2004
423-260	Chattanooga	8/20/2007
423-261	Coker Creek	N/A
423-262	Johnson City	N/A
423-263	Etowah	N/A
423-264	Vonore	7/21/2011
423-265	Chattanooga	N/A
423-266	Chattanooga	N/A
423-267	Chattanooga	N/A
423-268	Johnson City	6/8/2012
423-269	Chattanooga	1/20/2017
423-270	Erwin	4/24/2013
423-271	Sweetwater	4/14/2011
423-272	Rogersville	N/A
423-273	Morristown	N/A
423-274	Bristol	N/A
423-275	Chattanooga	6/30/2022
423-276	Kingsport	N/A
423-277	Morristown	8/29/2001
423-278	Greeneville	N/A
423-279	Blountville	N/A
423-280	Chattanooga	N/A
423-281	Butler	11/1/2011
423-282	Johnson City	N/A
423-283	Johnson City	N/A
423-284	Cleveland	N/A
423-285	Dayton	N/A
423-286	Oneida	N/A
423-287	Chattanooga	N/A
423-288	Kingsport	N/A
423-289	Morristown	6/18/2001
423-290	Chattanooga	N/A
423-291	Mountain City	8/31/2001
423-292	Fall Branch	N/A
423-293	Rogersville	8/31/2001
423-294	Chattanooga	4/3/2001
423-295	Ball Play	N/A
423-296	Chattanooga	N/A
423-297	Elizabethton	N/A
423-298	Chattanooga	N/A
423-299	Benton	11/2/2003

NPANXX	Area served¹	Date²
423-300	Sneedville	4/29/2003
423-301	South Pittsburgh	11/28/2011
423-302	Johnson City	11/10/2008
423-303	Cleveland	N/A
423-304	Chattanooga	N/A
423-305	Chattanooga	2/23/2007
423-306	Midway (Sullivan)	N/A
423-307	Morristown	10/24/2005
423-308	Chattanooga	N/A
423-309	Chattanooga	N/A
423-310	Cleveland	10/11/2002
423-312	Morristown	N/A
423-313	Chattanooga	5/9/2001
423-314	Chattanooga	N/A
423-315	Chattanooga	N/A
423-316	Chattanooga	N/A
423-317	Morristown	N/A
423-318	Morristown	N/A
423-319	Huntsville	N/A
423-320	Chattanooga	N/A
423-321	Chattanooga	N/A
423-322	Chattanooga	N/A
423-323	Blountville	N/A
423-324	Petros	N/A
423-325	Blountville	N/A
423-326	Chattanooga	N/A
423-327	Bulls Gap	N/A
423-328	Johnson City	2/19/2008
423-329	Greeneville	3/6/2002
423-330	Erwin	3/6/2002
423-331	Cleveland	N/A
423-332	Soddy-Daisy	N/A
423-333	Athens	N/A
423-334	Decatur	N/A
423-335	Midway (Sullivan)	N/A
423-336	Charleston	N/A
423-337	Sweetwater	N/A
423-338	Benton	N/A
423-339	Cleveland	N/A
423-340	Bristol	N/A
423-341	Bristol	N/A
423-342	Elizabethton	3/6/2002
423-343	Kingsport	N/A
423-344	Chattanooga	N/A
423-345	Surgoinsville	N/A
423-346	Wartburg	N/A
423-347	Rogersville	N/A
423-348	Fall Branch	N/A
423-349	Sullivan Gardens	N/A
423-350	Bristol	7/1/2022
423-351	Sweetwater	N/A
423-352	Lafollette	N/A
423-353	Morristown	3/16/2011
423-354	Blountville	N/A
423-355	Chattanooga	N/A
423-356	Chattanooga	2/28/2001
423-357	Church Hill	N/A
423-358	Rogersville	3/7/2002
423-359	Greeneville	8/13/2002
423-360	Midway (Sullivan)	N/A
423-361	Midway (Sullivan)	N/A
423-362	Chattanooga	N/A
423-363	Huntsville	2/22/2001
423-364	Chattanooga	N/A
423-365	Spring City	N/A
423-366	Bristol	N/A
423-367	Kingsport	N/A
423-368	Athens	N/A
423-369	Oakdale	N/A
423-370	Athens	N/A
423-371	Sweetwater	N/A
423-372	Jellico	N/A
423-373	Bulls Gap	N/A
423-374	Lafollette	N/A
423-375	Benton	3/18/2010
423-376	Madisonville	N/A
423-377	Lafollette	N/A
423-378	Kingsport	N/A
423-379	Newport	N/A
423-380	Cleveland	N/A
423-381	Athens	N/A
423-382	Sneedville	N/A
423-383	Bristol	11/14/2001
423-384	Fall Branch	11/14/2001
423-385	Chattanooga	N/A
423-386	Chattanooga	N/A
423-387	Johnson City	10/11/2022
423-388	Erwin	3/22/2002
423-389	Midway (Sullivan)	5/9/2002
423-390	Kingsport	8/13/2002
423-391	Bluff City	N/A
423-392	Kingsport	N/A
423-393	Bulls Gap	N/A
423-394	Chattanooga	N/A
423-395	Athens	11/4/2022
423-396	College Dale	N/A
423-397	Benton	7/6/2017
423-398	Kingsport	3/1/2011
423-399	Lafollette	12/2/2003

NPANXX	Area served¹	Date²
423-400	Chattanooga	N/A
423-401	Soddy-Daisy	N/A
423-402	Chattanooga	6/20/2008
423-403	South Pittsburgh	5/1/2017
423-404	Madisonville	N/A
423-405	Athens	3/29/2011
423-406	Midway (Sullivan)	3/13/2008
423-407	Spring City	1/10/2020
423-408	Kingsport	10/29/2009
423-409	Bulls Gap	N/A
423-410	Johnson City	N/A
423-412	Johnson City	N/A
423-413	Chattanooga	N/A
423-414	Chattanooga	4/1/2010
423-415	Newport	3/11/2010
423-416	Midway (Sullivan)	N/A
423-417	Chattanooga	8/23/2017
423-418	Midway (Sullivan)	N/A
423-419	Cumberland Gap	2/21/2012
423-420	Madisonville	N/A
423-421	Chattanooga	N/A
423-422	Mosheim	N/A
423-424	Chattanooga	N/A
423-425	Chattanooga	12/11/2001
423-426	Limestone	3/5/2002
423-427	Johnson City	3/5/2018
423-428	Dayton	4/22/2002
423-429	Kingsport	1/21/2008
423-430	Johnson City	3/11/2013
423-431	Johnson City	N/A
423-432	Chattanooga	N/A
423-433	Johnson City	N/A
423-434	Johnson City	N/A
423-435	Athens	5/2/2002
423-436	Madisonville	5/2/2002
423-437	Lafollette	5/2/2002
423-438	Morristown	5/2/2002
423-439	Johnson City	N/A
423-440	Elizabethton	10/14/2009
423-441	Cumberland Gap	1/7/2003
423-442	Madisonville	N/A
423-443	Chattanooga	5/7/2002
423-444	Limestone	1/8/2010
423-445	Surgoinsville	6/25/2002
423-446	Fall Branch	7/6/2002
423-447	Pikeville	N/A
423-448	Pikeville	9/23/2009
423-449	Lafollette	6/13/2002
423-450	Mosheim	10/23/2008
423-451	Soddy-Daisy	N/A
423-452	Spring City	N/A
423-453	Athens	6/18/2002
423-454	Decatur	10/26/2004
423-455	Jellico	10/7/2002
423-456	Lafollette	N/A
423-457	Cleveland	11/13/2008
423-458	Cleveland	4/2/2012
423-459	Chattanooga	1/16/2018
423-460	Mountain City	9/2/2010
423-461	Johnson City	N/A
423-462	Riceville	N/A
423-463	Chattanooga	9/7/2006
423-464	Cleveland	2/27/2009
423-465	Newport	7/1/2005
423-466	Athens	10/25/2017
423-467	Midway	N/A
423-468	Chattanooga	5/6/2006
423-469	Newport	N/A
423-470	Greeneville	7/28/2003
423-471	Mountain City	7/28/2003
423-472	Cleveland	N/A
423-473	Cleveland	N/A
423-474	Stoney Creek	N/A
423-475	Chattanooga	11/6/2007
423-476	Cleveland	N/A
423-477	Midway	N/A
423-478	Cleveland	N/A
423-479	Cleveland	N/A
423-480	Kingsport	2/10/2012
423-481	Roan Mountain	9/1/2011
423-482	Blountville	6/7/2002
423-483	Johnson City	6/7/2002
423-484	Bristol	6/7/2002
423-485	Chattanooga	N/A
423-486	Chattanooga	6/9/2010
423-487	Newport	N/A
423-488	Chattanooga	N/A
423-489	Cumberland Gap	11/2/2004
423-490	Chattanooga	N/A
423-491	Johnson City	6/21/2013
423-492	Morristown	4/7/2011
423-493	Chattanooga	N/A
423-494	Lafollette	2/4/2003
423-495	Chattanooga	N/A
423-496	Copper Basin	N/A
423-497	Chattanooga	2/3/2017
423-498	Chattanooga	2/1/2017
423-499	Chattanooga	N/A

NPANXX	Area served¹	Date²
423-500	Rogersville	3/28/2016
423-501	Mountain City	10/25/2017
423-502	Midway (Sullivan)	N/A
423-503	Chattanooga	N/A
423-504	Chattanooga	N/A
423-505	Chattanooga	N/A
423-506	Athens	N/A
423-507	Athens	N/A
423-508	Chattanooga	N/A
423-509	Chattanooga	10/24/2008
423-510	Chattanooga	N/A
423-512	Stoney Creek	8/4/2003
423-513	Vonore	11/8/2022
423-514	Chattanooga	N/A
423-515	South Pittsburgh	10/1/2019
423-516	Sullivan Gardens	2/21/2012
423-517	Chattanooga	N/A
423-518	Elizabethton	5/24/2012
423-519	Tellico Plains	N/A
423-520	Madisonville	N/A
423-521	Chattanooga	6/10/2008
423-522	Morristown	12/5/2002
423-523	Bulls Gap	5/9/2002
423-524	Johnson City	2/6/2018
423-525	Greeneville	5/14/2008
423-526	New Tazewell	N/A
423-527	Soddy-Daisy	11/9/2022
423-528	Baileyton	N/A
423-529	Georgetown	4/17/2006
423-530	Kingsport	3/15/2012
423-531	Chattanooga	9/16/2008
423-532	Newport	N/A
423-533	Nine Mile	N/A
423-534	Bristol	N/A
423-535	Chattanooga	7/9/2003
423-536	Sweetwater	N/A
423-537	Bulls Gap	N/A
423-538	Bluff City	N/A
423-539	Oneida	N/A
423-540	Newport	2/15/2018
423-541	Chattanooga	3/20/2018
423-542	Elizabethton	N/A
423-543	Elizabethton	N/A
423-544	Chattanooga	9/14/2001
423-545	Madisonville	8/20/2002
423-546	Bulls Gap	8/20/2002
423-547	Elizabethton	N/A
423-548	Copper Basin	7/11/2005
423-549	Johnson City	3/23/2018
423-550	Midway	01/25/2023
423-551	Chattanooga	2/27/2014
423-552	Greeneville	N/A
423-553	Chattanooga	N/A
423-554	College Station	N/A
423-556	Soddy-Daisy	8/30/2018
423-557	Johnson City	9/29/2004
423-558	Chattanooga	N/A
423-559	Cleveland	N/A
423-560	Erwin	8/16/2018
423-561	Sweetwater	4/18/2014
423-562	Lafollette	N/A
423-563	Lafollette	N/A
423-564	Rogersville	5/25/2018
423-565	Decatur	8/30/2018
423-566	Lafollette	N/A
423-567	Dayton	11/26/2008
423-568	Niota	N/A
423-569	Oneida	N/A
423-570	Dayton	N/A
423-571	Midway (Sullivan)	N/A
423-572	Englewood	N/A
423-573	Bristol	7/7/2006
423-574	Blountville	7/7/2006
423-575	Bluff City	7/7/2006
423-576	Elizabethton	06/15/2023
423-577	Oneida	N/A
423-578	Kingsport	N/A
423-579	Kingsport	2/13/2009
423-580	Chattanooga	N/A
423-581	Morristown	N/A
423-582	Chattanooga	8/10/2009
423-583	Sullivan Gardens	9/26/2018
423-584	Cleveland	N/A
423-585	Morristown	N/A
423-586	Morristown	N/A
423-587	Morristown	N/A
423-588	Greeneville	1/7/2010
423-589	Georgetown	4/9/2019
423-590	South Pittsburgh	5/3/2019
423-591	Chattanooga	1/3/2008
423-592	Lafollette	N/A
423-593	Chattanooga	N/A
423-594	Dayton	9/16/2009
423-595	Chattanooga	4/12/2001
423-596	Chattanooga	N/A
423-597	Benton	5/22/2019
423-598	Chattanooga	N/A
423-599	Cleveland	1/7/2010

NPANXX	Area served¹	Date²
423-600	Apison	3/19/2007
423-601	Bulls Gap	2/3/2005
423-602	Chattanooga	6/8/2012
423-603	Fork Ridge	12/13/2013
423-604	Etowah	N/A
423-605	Chattanooga	N/A
423-606	Englewood	2/26/2007
423-607	Limestone	2/17/2014
423-608	Newport	N/A
423-609	Greeneville	8/12/2014
423-610	Johnson City	N/A
423-612	Bristol	N/A
423-613	Newport	N/A
423-614	Cleveland	N/A
423-615	College Dale	3/19/2007
423-616	Morristown	8/18/2014
423-617	Athens	10/7/2013
423-618	Chattanooga	N/A
423-619	Chattanooga	N/A
423-620	Greeneville	N/A
423-621	Morristown	N/A
423-622	Chattanooga	N/A
423-623	Newport	N/A
423-624	Chattanooga	N/A
423-625	Newport	N/A
423-626	New Tazewell	N/A
423-627	Robbins	N/A
423-628	Sunbright	N/A
423-629	Chattanooga	N/A
423-630	Johnson City	9/25/2007
423-631	Johnson City	4/8/2008
423-632	Wartburg	6/24/2019
423-633	Chattanooga	12/17/2019
423-634	Chattanooga	N/A
423-635	Chattanooga	N/A
423-636	Greeneville	N/A
423-637	Chattanooga	6/9/2008
423-638	Greeneville	N/A
423-639	Greeneville	N/A
423-640	Sneedville	3/27/2020
423-641	Cleveland	4/7/2014
423-642	Chattanooga	N/A
423-643	Chattanooga	8/14/2002
423-644	Soddy-Daisy	3/9/2020
423-645	Chattanooga	N/A
423-646	Bristol	N/A
423-647	Butler	N/A
423-648	Chattanooga	N/A
423-649	Athens	N/A
423-650	Cleveland	N/A
423-651	Jasper	5/8/2014
423-652	Bristol	N/A
423-653	Chattanooga	N/A
423-654	Chattanooga	7/21/2020
423-655	Chattanooga	N/A
423-656	Johnson City	7/22/2020
423-657	Mosheim	1/28/2015
423-658	Whitwell	N/A
423-659	Copper Basin	8/4/2020
423-660	Chattanooga	9/16/2020
423-661	Chattanooga	8/12/2014
423-662	Blountville	N/A
423-663	Huntsville	N/A
423-664	Chattanooga	N/A
423-665	Charleston	10/26/2004
423-666	Elizabethton	5/17/2018
423-667	Chattanooga	N/A
423-668	Chattanooga	N/A
423-669	Benton	08/11/2023
423-670	Johnson City	9/23/2020
423-671	Chattanooga	9/29/2020
423-672	Johnson City	12/27/2019
423-673	Johnson City	4/13/2021
423-674	Dayton	4/13/2021
423-675	Jasper	4/13/2021
423-676	Johnson City	N/A
423-677	Fall Branch	N/A
423-678	Roan Mountain	4/15/2021
423-679	Ooltewah	4/13/2021
423-680	Chattanooga	3/30/2016
423-681	Chattanooga	1/14/2015
423-682	Chattanooga	1/14/2016
423-683	Elizabethton	N/A
423-684	Greeneville	N/A
423-685	Johnson City	N/A
423-686	Fork Ridge	4/15/2021
423-687	Pikeville	5/13/2021
423-688	Sneedville	5/17/2021
423-689	Bristol	7/1/2021
423-690	Morristown	12/2/2016
423-691	Athens	9/1/2021
423-692	Butler	9/1/2021
423-693	Chattanooga	5/19/2006
423-694	Sweetwater	9/8/2021
423-695	Erwin	N/A
423-696	Rogersville	9/16/2021
423-697	Chattanooga	N/A
423-698	Chattanooga	N/A
423-699	Mountain City	N/A

NPANXX	Area served¹	Date²
423-701	Robbins	1/30/2014
423-702	Chattanooga	2/14/2006
423-703	Coker Creek	11/21/2019
423-704	Chattanooga	N/A
423-705	Johnson City	12/2/2021
423-707	Elizabethton	12/11/2009
423-708	Chattanooga	10/8/2014
423-709	Cleveland	N/A
423-710	Chattanooga	6/19/2007
423-712	Bluff City	1/26/2015
423-713	Chattanooga	6/5/2015
423-714	Morristown	N/A
423-715	Cleveland	N/A
423-716	Cleveland	N/A
423-717	Athens	4/29/2015
423-718	Chattanooga	N/A
423-719	Chattanooga	12/2/2021
423-720	Newport	5/20/2015
423-721	Newport	N/A
423-722	Johnson City	N/A
423-723	Kingsport	N/A
423-724	Sneedville	N/A
423-725	Hampton	N/A
423-726	Midway (Sullivan)	N/A
423-727	Mountain City	N/A
423-728	Cleveland	N/A
423-730	Riceville	2/26/2007
423-732	Kingsport	8/11/2015
423-733	Sneedville	N/A
423-734	Rogersville	1/9/2020
423-735	Erwin	N/A
423-736	Morristown	N/A
423-737	Johnson City	N/A
423-738	Bristol	12/14/2021
423-739	Shady Valley	N/A
423-740	Cleveland	12/15/2021
423-741	Johnson City	N/A
423-742	Bristol	N/A
423-743	Erwin	N/A
423-744	Athens	N/A
423-745	Athens	N/A
423-746	Athens	N/A
423-747	Johnson City	N/A
423-748	Morristown	N/A
423-749	College Dale	12/29/2021
423-750	Chattanooga	9/3/2021
423-751	Chattanooga	N/A
423-752	Chattanooga	N/A
423-753	Jonesboro	N/A
423-754	Rogersville	N/A
423-755	Chattanooga	N/A
423-756	Chattanooga	N/A
423-757	Chattanooga	N/A
423-758	Bristol	N/A
423-759	Morristown	9/1/2021
423-760	Chattanooga	N/A
423-761	Copper Basin	8/1/2006
423-762	Chattanooga	N/A
423-763	Chattanooga	N/A
423-764	Bristol	N/A
423-765	Kingsport	12/2/2004
423-766	Limestone	1/20/2021
423-767	Johnson City	1/9/2001
423-768	Butler	N/A
423-769	Benton	12/15/2021
423-770	Church Hill	8/16/2018
423-771	Chattanooga	1/6/2010
423-772	Roan Mountain	N/A
423-773	Johnson City	2/9/2001
423-774	Soddy-Daisy	N/A
423-775	Dayton	N/A
423-776	Pikeville	12/30/2021
423-777	Chattanooga	10/6/2014
423-778	Chattanooga	N/A
423-779	Chattanooga	N/A
423-780	Charleston	N/A
423-781	Etowah	3/1/2004
423-782	Kingsport	N/A
423-783	Greeneville	N/A
423-784	Jellico	N/A
423-785	Chattanooga	N/A
423-786	Bluff City	08/11/2023
423-787	Greeneville	N/A
423-788	Jonesboro	N/A
423-789	Bristol	8/13/2002
423-790	Cleveland	4/12/2006
423-791	Johnson City	N/A
423-792	Vonore	N/A
423-793	Bristol	N/A
423-794	Johnson City	N/A
423-795	Johnson City	N/A
423-796	Johnson City	2/1/2022
423-797	Bristol	N/A
423-798	Greeneville	N/A
423-799	Spring City	10/26/2004

NPANXX	Area served¹	Date²
423-800	Chattanooga	2/10/2011
423-801	Cumberland Gap	12/19/2007
423-802	Chattanooga	N/A
423-803	Chattanooga	1/4/2016
423-804	Bristol	2/3/2022
423-805	Chattanooga	6/14/2013
423-806	Midway	5/20/2015
423-807	Madisonville	N/A
423-808	Tellico Plains	9/14/2007
423-809	Pikeville	05/18/2023
423-810	Charleston	8/3/2015
423-812	Greeneville	8/23/2016
423-813	Cleveland	10/8/2015
423-814	Sweetwater	N/A
423-815	Whitwell	9/14/2007
423-816	Bristol	12/1/2022
423-817	Kingsport	N/A
423-818	Jellico	9/21/2016
423-819	Cleveland	12/30/2022
423-820	Greeneville	5/17/2018
423-821	Chattanooga	N/A
423-822	Chattanooga	N/A
423-823	Greeneville	N/A
423-824	Erwin	08/11/2023
423-825	Chattanooga	N/A
423-826	Chattanooga	N/A
423-827	Chattanooga	N/A
423-829	Charleston	N/A
423-830	Kingsport	5/17/2018
423-831	Greeneville	03/02/2023
423-832	Clinchport	1/13/2022
423-833	Johnson City	N/A
423-834	Chattanooga	N/A
423-835	Bristol	03/16/2023
423-836	Sweetwater	N/A
423-837	South Pittsburgh	N/A
423-838	Chattanooga	N/A
423-839	Morristown	N/A
423-840	Butler	5/17/2018
423-841	Mountain City	04/06/2023
423-842	Chattanooga	N/A
423-843	Chattanooga	N/A
423-844	Bristol	N/A
423-845	Bristol	3/30/2005
423-846	Chattanooga	N/A
423-847	Chattanooga	N/A
423-848	Johnson City	9/3/2021
423-849	Johnson City	05/05/2023
423-850	Jonesboro	5/21/2018
423-851	New Tazewell	N/A
423-852	Dunlap	05/18/2023
423-853	Johnson City	1/21/2022
423-854	Johnson City	N/A
423-855	Chattanooga	N/A
423-856	Athens	9/16/2016
423-857	Kingsport	N/A
423-858	Blountville	08/11/2023
423-859	Rogersville	05/31/2023
423-860	Chattanooga	7/1/2022
423-862	Spring City	08/22/2023
423-863	Kingsport	N/A
423-864	Decatur	05/18/2023
423-866	Niota	08/07/2023
423-867	Chattanooga	N/A
423-868	Mosheim	08/22/2023
423-869	Cumberland Gap	N/A
423-870	Chattanooga	N/A
423-871	Lafollette	N/A
423-872	Chattanooga	05/23/2023
423-873	Stoney Creek	7/15/2020
423-874	Chattanooga	N/A
423-875	Chattanooga	N/A
423-876	Chattanooga	N/A
423-877	Chattanooga	N/A
423-878	Bristol	N/A
423-879	Georgetown	08/22/2023
423-880	Johnson City	3/31/2021
423-881	Fall Creek Falls	N/A
423-882	Chattanooga	10/26/2011
423-883	Chattanooga	N/A
423-884	Vonore	N/A
423-885	Englewood	N/A
423-886	Chattanooga	N/A
423-887	Englewood	N/A
423-888	Chattanooga	8/17/2015
423-889	Cleveland	08/30/2023
423-890	Bristol	09/06/2023
423-892	Chattanooga	N/A
423-893	Chattanooga	N/A
423-894	Chattanooga	N/A
423-895	Elizabethton	N/A
423-896	Hampton	N/A
423-897	Fall Branch	N/A
423-898	Charleston	10/12/2023
423-899	Chattanooga	N/A

NPANXX	Area served¹	Date²
423-900	Johnson City	2/16/2011
423-902	Chattanooga	N/A
423-903	Chattanooga	N/A
423-904	Chattanooga	4/13/2021
423-905	Johnson City	4/13/2021
423-906	Johnson City	10/24/2023
423-907	Lafollette	N/A
423-909	South Pittsburgh	05/18/2023
423-910	Ooltewah	3/19/2007
423-912	Lafollette	N/A
423-913	Jonesboro	N/A
423-914	Bristol	N/A
423-915	Johnson City	N/A
423-917	Blountville	N/A
423-919	New Tazewell	10/1/2019
423-920	Athens	N/A
423-921	Rogersville	N/A
423-922	Baileyton	7/15/2020
423-923	Rogersville	N/A
423-925	Lafollette	3/23/2022
423-926	Johnson City	N/A
423-927	Morristown	3/1/2022
423-928	Johnson City	N/A
423-929	Johnson City	N/A
423-930	Johnson City	2/13/2009
423-932	Etowah	1/20/2022
423-933	Chattanooga	6/14/2002
423-934	Surgoinsville	3/18/2021
423-938	Johnson City	8/13/2002
423-939	Jasper	6/21/2005
423-940	Dayton	03/20/2023
423-942	Jasper	N/A
423-943	Johnson City	N/A
423-944	Clinchport	N/A
423-946	Johnson City	3/9/2001
423-948	Limestone	N/A
423-949	Dunlap	N/A
423-952	Johnson City	N/A
423-953	Johnson City	N/A
423-954	Chattanooga	N/A
423-955	Whitwell	7/15/2020
423-956	Bristol	N/A
423-957	Hampton	N/A
423-961	Georgetown	N/A
423-963	Kingsport	3/9/2001
423-965	Deer Lodge	N/A
423-966	Ball Play	7/15/2020
423-967	Kingsport	N/A
423-968	Bristol	N/A
423-972	Greeneville	N/A
423-973	Sneedville	4/30/2002
423-975	Johnson City	N/A
423-977	Chattanooga	7/18/2019
423-979	Johnson City	N/A
423-980	Chattanooga	3/31/2021
423-987	Chattanooga	N/A
423-989	Bristol	N/A
423-990	Bristol	N/A
423-991	Chattanooga	N/A
423-994	Chattanooga	5/10/2007
423-998	Jellico	10/10/2022
423-999	Athens	3/30/2011

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 423

City¹	County	Time²
Afton	Greene	E
Apison	Hamilton	E
Arthur	Claiborne	E
Athens	McMinn	E
Bakewell	Hamilton	E
Benton	Polk	E
Birchwood	Hamilton	E
Blountville	Sullivan	E
Bluff City	Sullivan	E
Bristol	Sullivan	E
Bulls Gap	Hawkins	E
Butler	Johnson	E
Bybee	Cocke	E
Calhoun	McMinn	E
Caryville	Campbell	E
Charleston	Bradley	E
Chattanooga	Hamilton	E
Chuckey	Greene	E
Church Hill	Hawkins	E
Clairfield	Claiborne	E
Cleveland	Bradley	E
Coalfield	Morgan	E
Coker Creek	Monroe	E
Collegedale	Hamilton	E
Conasauga	Polk	E
Copperhill	Polk	E
Cosby	Cocke	E
Cumberland Gap	Claiborne	E
Dayton	Rhea	E
Decatur	Meigs	E
Deer Lodge	Morgan	E
Del Rio	Cocke	E
Delano	Polk	E
Ducktown	Polk	E
Duff	Campbell	E
Dunlap	Sequatchie	C
Eagan	Claiborne	E
Eidson	Hawkins	E
Elgin	Scott	E
Elizabethton	Carter	E
Englewood	McMinn	E
Erwin	Unicoi	E
Etowah	McMinn	E
Evensville	Rhea	E
Fall Branch	Washington	E
Farner	Polk	E
Flag Pond	Unicoi	E
Georgetown	Meigs	E
Grandview	Rhea	E
Graysville	Rhea	E
Greeneville	Greene	E
Guild	Marion	C
Hampton	Carter	E
Harrison	Hamilton	E
Harrogate	Claiborne	E
Hartford	Cocke	E
Helenwood	Scott	E
Hixson	Hamilton	E
Huntsville	Scott	E
Jacksboro	Campbell	E
Jasper	Marion	C
Jellico	Campbell	E
Johnson City	Washington	E
Jonesborough	Washington	E
Kingsport	Sullivan	E
Kyles Ford	Hancock	E
LaFollette	Campbell	E
Lancing	Morgan	E
Laurel Bloomery	Johnson	E
Limestone	Washington	E
Lone Mountain	Claiborne	E
Lookout Mountain	Hamilton	E
Lowland	Hamblen	E
Lupton City	Hamilton	E
Madisonville	Monroe	E
Mc Donald	Bradley	E
Midway	Greene	E
Milligan College	Carter	E
Mohawk	Greene	E
Mooresburg	Hawkins	E
Morristown	Hamblen	E
Mosheim	Greene	E
Mount Carmel	Hawkins	E
Mountain City	Johnson	E
Mountain Home	Washington	E
New Tazewell	Claiborne	E
Newcomb	Campbell	E
Newport	Cocke	E
Niota	McMinn	E
Oakdale	Morgan	E
Ocoee	Polk	E
Old Fort	Polk	E
Oliver Springs	Roane	E
Oneida	Scott	E
Ooltewah	Hamilton	E
Parrottsville	Cocke	E
Petros	Morgan	E
Pikeville	Bledsoe	C
Piney Flats	Sullivan	E
Pioneer	Campbell	E
Pruden	Claiborne	E
Reliance	Polk	E
Riceville	McMinn	E
Roan Mountain	Carter	E
Robbins	Scott	E
Rogersville	Hawkins	E
Rugby	Morgan	E
Russellville	Hamblen	E
Sale Creek	Hamilton	E
Sequatchie	Marion	C
Shady Valley	Johnson	E
Shawanee	Claiborne	E
Signal Mountain	Hamilton	E
Sneedville	Hancock	E
Soddy-Daisy	Hamilton	E
South Pittsburg	Marion	C
Speedwell	Claiborne	E
Spring City	Rhea	E
Sunbright	Morgan	E
Surgoinsville	Hawkins	E
Sweetwater	Monroe	E
Talbott	Hamblen	E
Tazewell	Claiborne	E
Telford	Washington	E
Tellico Plains	Monroe	E
Ten Mile	Meigs	E
Trade	Johnson	E
Turtletown	Polk	E
Unicoi	Unicoi	E
Vonore	Monroe	E
Wartburg	Morgan	E
Watauga	Carter	E
Whitesburg	Hamblen	E
Whiteside	Marion	C
Whitwell	Marion	C
Winfield	Scott	E

Listed above are most places served by area code 423. 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.
Multiple time zones. Go to top for current time.

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423 Area Code

Reverse phone lookup

Map of area code 423

More Tennessee area codes

423 phone number location

423-2XX-XXXX

423-3XX-XXXX

423-4XX-XXXX

423-5XX-XXXX

423-6XX-XXXX

423-9XX-XXXX

Cities in area code 423