301 Area Code : Location, Timezone, Map, Zip Code, Scam

TABLE OF CONTENT

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Where is 301 area code ?
301 Area Code By NPA NXX, Location
Cities in 301 area code with ZIP codes
Counties in 301 area code
Frequently Asked Questions
References
All Area Codes List

Where is 301 area code ?

Area Code 301 : Overview

‣ Area Code: 301
‣ State: Maryland (MD), USA
‣ Major Locations: Baltimore, Arlington, Columbia, Waldorf, Silver Spring, Frederick, Gaithersburg.
‣ Timezone: Eastern Time Zone
‣ In Service Date: Since January 01, 1947
‣ Coordinates: 39.3845° N, 77.4702° W
‣ Zip Code: As mentioned below.

Area code 301 is the telephone area code for the Maryland (MD), USA in the North American Numbering Plan.

It covers a number of major locations including Baltimore, Arlington, Columbia, Waldorf, Silver Spring, Frederick, Gaithersburg, etc. The list of all covered counties and cities is given below.

The time zone for places served by area code 301 is Eastern Time Zone.

This area code in service since January 01, 1947. Area codes 301, 240 and 227 overlap and cover the same territory.

Coordinates for locations covered by area code 301 are 39.3845° N, 77.4702° W.

Zip codes for locations covered under 301 area code usa are listed in the table below.

The 301 Area Code Map above shows the geographic region it covers.

Make sure to bookmark this page to gain instant access to all US area codes and a comprehensive guide. This will help you become an expert on US area code lookup.

301 Area Code By NPA NXX Location

A complete list of area code 301 location by different telephone number locations and by NPA NXX are listed in the table below with covered area. "NPA NXX" are parts of a ten-digit phone number i.e NPA-NXX-XXXX in the North American Numbering Plan (NANP). NPA are the area codes and NXX are the central office codes. These codes are unique to each state, however some larger states have more than one phone area code 301.

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NPA NXX	Area covered
301-200	Indian Head
301-201	Washington Zone 10
301-202	Washington Zone 2
301-203	Washington Zone 6
301-204	Washington Zone 2
301-205	Washington Zone 14
301-206	Washington Zone 13
301-207	Washington Zone 13
301-208	Gaithersburg
301-209	Washington Zone 4
301-210	Laurel
301-212	Washington Zone 10
301-213	Washington Zone 3
301-214	Washington Zone 2
301-215	Washington Zone 2
301-216	Gaithersburg
301-217	Washington Zone 10
301-218	Washington Zone 14
301-219	Washington Zone 2
301-220	Washington Zone 13
301-221	Washington Zone 2
301-222	Washington Zone 2
301-223	Williamsport
301-224	Washington Zone 2
301-225	Washington Zone 14
301-226	Washington Zone 4
301-227	Washington Zone 2
301-228	Frederick
301-229	Washington Zone 2
301-230	Washington Zone 11
301-231	Washington Zone 11
301-232	Ashton
301-233	Washington Zone 3
301-234	Washington Zone 16
301-235	Washington Zone 16
301-236	Washington Zone 12
301-237	Washington Zone 3
301-238	Washington Zone 16
301-239	Washington Zone 4
301-240	Washington Zone 10
301-241	Highfield
301-242	Brandywine
301-243	Washington Zone 2
301-244	Washington Zone 3
301-245	Bittinger
301-246	Nanjemoy
301-247	Leonardtown
301-248	Washington Zone 6
301-249	Washington Zone 14
301-250	Gaithersburg
301-251	Washington Zone 10
301-252	Gaithersburg
301-253	Damascus
301-254	Washington Zone 3
301-255	Washington Zone 11
301-256	Laurel
301-257	Washington Zone 3
301-258	Washington Zone 10
301-259	Tompkinsville
301-260	Ashton
301-261	Washington Zone 14
301-262	Washington Zone 14
301-263	Washington Zone 2
301-264	Mt Savage
301-265	Washington Zone 6
301-266	Waldorf
301-267	Washington Zone 3
301-268	Cumberland
301-269	Washington Zone 2
301-270	Washington Zone 3
301-271	Thurmont
301-272	Washington Zone 2
301-273	Washington Zone 3
301-274	Hughesville
301-275	Washington Zone 2
301-276	Washington Zone 4
301-277	Washington Zone 4
301-278	Washington Zone 5
301-279	Washington Zone 10
301-280	Washington Zone 2
301-281	Washington Zone 6
301-282	Washington Zone 12
301-283	Washington Zone 6
301-284	Washington Zone 10
301-285	Washington Zone 3
301-286	Washington Zone 13
301-287	Washington Zone 11
301-288	Washington Zone 12
301-289	Washington Zone 13
301-290	Mechanicsville
301-291	Washington Zone 14
301-292	Washington Zone 6
301-293	Myersville
301-294	Washington Zone 10
301-295	Washington Zone 2
301-296	Washington Zone 10
301-297	Washington Zone 16
301-298	Washington Zone 15
301-299	Washington Zone 10
301-300	Washington Zone 2
301-301	Gaithersburg
301-302	Hagerstown
301-303	Washington Zone 13
301-304	Walkersville
301-305	Frederick
301-306	Washington Zone 4
301-307	Washington Zone 13
301-308	Washington Zone 13
301-309	Washington Zone 10
301-310	Laurel
301-312	Washington Zone 2
301-313	Washington Zone 13
301-314	Washington Zone 4
301-315	Washington Zone 10
301-316	Washington Zone 5
301-317	Laurel
301-318	Washington Zone 2
301-319	Washington Zone 2
301-320	Washington Zone 2
301-321	Washington Zone 11
301-322	Washington Zone 4
301-323	Laurel
301-324	Washington Zone 5
301-325	Washington Zone 3
301-326	Washington Zone 3
301-327	Washington Zone 15
301-328	Washington Zone 3
301-329	Ashton
301-330	Gaithersburg
301-331	Hagerstown
301-332	Washington Zone 3
301-333	Washington Zone 5
301-334	Oakland
301-335	Washington Zone 2
301-336	Washington Zone 5
301-337	Gaithersburg
301-338	Cumberland
301-339	Washington Zone 10
301-340	Washington Zone 10
301-341	Washington Zone 4
301-342	Lexington Park-Great Mills
301-343	Washington Zone 5
301-344	Washington Zone 13
301-345	Washington Zone 13
301-346	Washington Zone 3
301-347	Washington Zone 2
301-348	Washington Zone 11
301-349	Poolesville
301-350	Washington Zone 5
301-351	Washington Zone 3
301-352	Washington Zone 14
301-353	Washington Zone 10
301-354	Washington Zone 10
301-355	Gaithersburg
301-356	Laurel
301-357	Washington Zone 3
301-358	Washington Zone 15
301-359	Westernport
301-360	Frederick
301-361	Washington Zone 4
301-362	Laurel
301-363	Damascus
301-364	Washington Zone 4
301-365	Washington Zone 2
301-366	Gaithersburg
301-367	Washington Zone 3
301-368	Damascus
301-369	Washington Zone 13
301-370	Gaithersburg
301-371	Middletown
301-372	Washington Zone 16
301-373	Leonardtown
301-374	Waldorf
301-375	Indian Head
301-376	Laurel
301-377	Laurel
301-378	Frederick
301-379	Washington Zone 3
301-380	Washington Zone 2
301-381	Washington Zone 2
301-382	Washington Zone 11
301-383	Washington Zone 14
301-384	Washington Zone 12
301-385	Washington Zone 2
301-386	Washington Zone 4
301-387	Oakland
301-388	Washington Zone 12
301-389	Washington Zone 13
301-390	Washington Zone 14
301-391	Damascus
301-392	La Plata
301-393	Hagerstown
301-394	Washington Zone 3
301-395	Laurel
301-396	Waldorf
301-397	Washington Zone 13
301-398	Washington Zone 10
301-399	Waldorf
301-400	Washington Zone 2
301-401	Frederick
301-402	Washington Zone 2
301-403	Washington Zone 4
301-404	Washington Zone 3
301-405	Washington Zone 4
301-406	Washington Zone 2
301-407	Gaithersburg
301-408	Washington Zone 3
301-409	Washington Zone 2
301-410	Washington Zone 6
301-412	Washington Zone 2
301-413	Washington Zone 11
301-414	Damascus
301-415	Washington Zone 3
301-416	Myersville
301-417	Washington Zone 10
301-418	Frederick
301-419	Washington Zone 13
301-420	Washington Zone 5
301-421	Ashton
301-422	Washington Zone 4
301-423	Washington Zone 5
301-424	Washington Zone 10
301-425	Washington Zone 13
301-426	Washington Zone 13
301-427	Washington Zone 3
301-428	Washington Zone 10
301-429	Washington Zone 4
301-430	Washington Zone 14
301-431	Washington Zone 3
301-432	Keedysville
301-433	Washington Zone 5
301-434	Washington Zone 3
301-435	Washington Zone 2
301-436	Washington Zone 4
301-437	Washington Zone 3
301-438	Washington Zone 12
301-439	Washington Zone 3
301-440	Washington Zone 5
301-441	Washington Zone 13
301-442	Washington Zone 3
301-443	Washington Zone 11
301-444	Washington Zone 10
301-445	Washington Zone 3
301-446	Washington Zone 13
301-447	Emmitsburg
301-448	Washington Zone 3
301-449	Washington Zone 5
301-450	Washington Zone 3
301-451	Washington Zone 2
301-452	Washington Zone 3
301-453	Kitzmiller
301-454	Washington Zone 4
301-455	Washington Zone 3
301-456	Washington Zone 5
301-457	Washington Zone 3
301-458	Washington Zone 4
301-459	Washington Zone 4
301-460	Washington Zone 11
301-461	Washington Zone 10
301-462	Myersville
301-463	Lonaconing
301-464	Washington Zone 14
301-465	Myersville
301-466	Washington Zone 3
301-467	Washington Zone 3
301-468	Washington Zone 11
301-469	Washington Zone 2
301-470	Washington Zone 14
301-471	Frederick
301-472	Mechanicsville
301-473	Frederick
301-474	Washington Zone 13
301-475	Leonardtown
301-476	Ashton
301-477	Washington Zone 13
301-478	Flintstone
301-479	Washington Zone 13
301-480	Washington Zone 2
301-481	Leonardtown
301-482	Damascus
301-483	Laurel
301-484	Washington Zone 4
301-485	Washington Zone 6
301-486	Washington Zone 13
301-487	Myersville
301-488	Washington Zone 13
301-489	Washington Zone 13
301-490	Laurel
301-491	Hagerstown
301-492	Washington Zone 2
301-493	Washington Zone 2
301-494	Washington Zone 15
301-495	Washington Zone 3
301-496	Washington Zone 2
301-497	Laurel
301-498	Laurel
301-499	Washington Zone 5
301-500	Washington Zone 2
301-501	Oakland
301-502	Washington Zone 3
301-503	Washington Zone 2
301-504	Washington Zone 3
301-505	Washington Zone 6
301-506	Washington Zone 13
301-507	Washington Zone 13
301-508	Myersville
301-509	Washington Zone 3
301-510	Washington Zone 13
301-512	Washington Zone 3
301-513	Washington Zone 13
301-514	Frederick
301-515	Gaithersburg
301-516	Washington Zone 5
301-517	Washington Zone 10
301-518	Washington Zone 3
301-519	Gaithersburg
301-520	Washington Zone 3
301-521	Washington Zone 6
301-522	Washington Zone 11
301-523	Washington Zone 3
301-524	Frederick
301-525	Gaithersburg
301-526	Washington Zone 3
301-527	Gaithersburg
301-528	Gaithersburg
301-529	Washington Zone 10
301-530	Washington Zone 2
301-531	Washington Zone 4
301-532	Laurel
301-533	Oakland
301-534	Indian Head
301-535	Waldorf
301-536	Leonardtown
301-537	Washington Zone 3
301-538	Washington Zone 2
301-539	La Plata
301-540	Gaithersburg
301-541	Washington Zone 5
301-542	Waldorf
301-543	Laurel
301-544	Washington Zone 10
301-545	Washington Zone 10
301-546	Washington Zone 4
301-547	Washington Zone 2
301-548	Washington Zone 10
301-549	Ashton
301-550	Washington Zone 10
301-551	Washington Zone 3
301-552	Washington Zone 13
301-553	Waldorf
301-554	Washington Zone 2
301-556	Gaithersburg
301-557	Washington Zone 3
301-558	Washington Zone 13
301-559	Washington Zone 4
301-560	Washington Zone 4
301-561	Washington Zone 3
301-562	Washington Zone 3
301-563	Washington Zone 3
301-564	Washington Zone 2
301-565	Washington Zone 3
301-566	Washington Zone 13
301-567	Washington Zone 6
301-568	Washington Zone 5
301-569	Gaithersburg
301-570	Ashton
301-571	Washington Zone 2
301-572	Washington Zone 3
301-573	Hagerstown
301-574	Washington Zone 15
301-575	Laurel
301-576	Washington Zone 3
301-577	Washington Zone 4
301-578	Washington Zone 3
301-579	Brandywine
301-580	Washington Zone 3
301-581	Washington Zone 2
301-582	Hagerstown
301-583	Washington Zone 4
301-584	Washington Zone 12
301-585	Washington Zone 3
301-586	Washington Zone 3
301-587	Washington Zone 3
301-588	Washington Zone 3
301-589	Washington Zone 3
301-590	Washington Zone 10
301-591	Gaithersburg
301-592	Washington Zone 3
301-593	Washington Zone 3
301-594	Washington Zone 2
301-595	Washington Zone 13
301-596	Laurel
301-597	Hancock
301-598	Washington Zone 12
301-599	Washington Zone 5
301-600	Frederick
301-601	Washington Zone 10
301-602	Washington Zone 3
301-603	Washington Zone 11
301-604	Laurel
301-605	Washington Zone 10
301-606	Frederick
301-607	Damascus
301-608	Washington Zone 3
301-609	Waldorf
301-610	Washington Zone 10
301-612	Washington Zone 14
301-613	Washington Zone 3
301-614	Washington Zone 13
301-615	Washington Zone 13
301-616	Oakland
301-617	Laurel
301-618	Washington Zone 4
301-619	Frederick
301-620	Frederick
301-621	Washington Zone 14
301-622	Washington Zone 3
301-623	Washington Zone 13
301-624	Frederick
301-625	Washington Zone 3
301-626	Washington Zone 3
301-627	Washington Zone 15
301-628	Washington Zone 3
301-629	Washington Zone 14
301-630	Washington Zone 6
301-631	Frederick
301-632	Waldorf
301-633	Washington Zone 2
301-634	Washington Zone 2
301-635	Washington Zone 5
301-636	Washington Zone 5
301-637	Washington Zone 10
301-638	Waldorf
301-639	Frederick
301-640	Washington Zone 10
301-641	Washington Zone 3
301-642	Washington Zone 2
301-643	Waldorf
301-644	Frederick
301-645	Waldorf
301-646	Washington Zone 2
301-647	Washington Zone 13
301-648	Washington Zone 2
301-649	Washington Zone 11
301-650	Washington Zone 3
301-651	Washington Zone 3
301-652	Washington Zone 2
301-653	Waldorf
301-654	Washington Zone 2
301-655	Washington Zone 2
301-656	Washington Zone 2
301-657	Washington Zone 2
301-658	Ashton
301-659	Waldorf
301-660	Keedysville
301-661	Washington Zone 2
301-662	Frederick
301-663	Frederick
301-664	Washington Zone 2
301-665	Hagerstown
301-666	Washington Zone 14
301-667	Myersville
301-668	Frederick
301-669	Washington Zone 5
301-670	Washington Zone 10
301-671	Hagerstown
301-672	Lexington Park-Great Mills
301-673	Frederick
301-674	Washington Zone 2
301-675	Washington Zone 3
301-676	Frederick
301-677	Washington Zone 14
301-678	Hancock
301-679	Washington Zone 12
301-680	Washington Zone 3
301-681	Washington Zone 3
301-682	Frederick
301-683	Washington Zone 4
301-684	Indian Head
301-685	Damascus
301-686	Washington Zone 6
301-687	Frostburg
301-688	Washington Zone 13
301-689	Frostburg
301-690	Leonardtown
301-691	Poolesville
301-692	Washington Zone 11
301-693	Frederick
301-694	Frederick
301-695	Frederick
301-696	Frederick
301-697	Cumberland
301-698	Frederick
301-699	Washington Zone 4
301-701	Washington Zone 13
301-702	Washington Zone 5
301-703	Mount Airy
301-704	Washington Zone 3
301-705	Waldorf
301-706	Washington Zone 3
301-707	Cumberland
301-708	Laurel
301-709	Cumberland
301-710	Waldorf
301-712	Frederick
301-713	Washington Zone 3
301-714	Hagerstown
301-715	Washington Zone 15
301-716	Washington Zone 13
301-717	Washington Zone 3
301-718	Washington Zone 2
301-719	Washington Zone 16
301-720	Brandywine
301-721	Washington Zone 10
301-722	Cumberland
301-723	Cumberland
301-724	Cumberland
301-725	Laurel
301-726	Kitzmiller
301-727	Washington Zone 5
301-728	Washington Zone 3
301-729	Cumberland
301-730	Myersville
301-731	Washington Zone 4
301-732	Frederick
301-733	Hagerstown
301-734	Washington Zone 3
301-735	Washington Zone 5
301-736	Washington Zone 5
301-737	Lexington Park-Great Mills
301-738	Washington Zone 10
301-739	Hagerstown
301-740	Gaithersburg
301-741	Laurel
301-742	Washington Zone 2
301-743	Indian Head
301-744	Indian Head
301-745	Hagerstown
301-746	Friendsville
301-747	Washington Zone 6
301-748	Frederick
301-749	Washington Zone 6
301-750	Friendsville
301-751	Waldorf
301-752	Waldorf
301-753	Washington Zone 6
301-754	Washington Zone 3
301-755	Washington Zone 3
301-756	Washington Zone 14
301-757	Lexington Park-Great Mills
301-758	Washington Zone 3
301-759	Cumberland
301-760	Washington Zone 2
301-761	Washington Zone 11
301-762	Washington Zone 10
301-763	Washington Zone 5
301-764	Waldorf
301-765	Washington Zone 10
301-766	Hagerstown
301-767	Washington Zone 2
301-768	Washington Zone 3
301-769	Leonardtown
301-770	Washington Zone 11
301-771	Washington Zone 2
301-772	Washington Zone 4
301-773	Washington Zone 4
301-774	Ashton
301-775	Washington Zone 3
301-776	Laurel
301-777	Cumberland
301-778	Washington Zone 5
301-779	Washington Zone 4
301-780	Washington Zone 15
301-781	Frostburg
301-782	Brandywine
301-783	Cumberland
301-784	Cumberland
301-785	Washington Zone 3
301-786	Mccoole
301-787	Washington Zone 3
301-788	Frederick
301-789	Washington Zone 4
301-790	Hagerstown
301-791	Hagerstown
301-792	Washington Zone 3
301-793	Washington Zone 3
301-794	Washington Zone 14
301-795	Washington Zone 10
301-796	Washington Zone 13
301-797	Hagerstown
301-798	Damascus
301-799	Keedysville
301-800	Hagerstown
301-801	Washington Zone 3
301-802	Washington Zone 3
301-803	Washington Zone 2
301-804	Ashton
301-805	Washington Zone 14
301-806	Washington Zone 3
301-807	Washington Zone 3
301-808	Washington Zone 5
301-809	Washington Zone 14
301-810	Buckeyestown
301-812	Washington Zone 15
301-813	Washington Zone 2
301-814	Washington Zone 2
301-815	Frederick
301-816	Washington Zone 11
301-817	Washington Zone 5
301-818	Waldorf
301-819	Washington Zone 3
301-820	Gaithersburg
301-821	Laurel
301-822	Washington Zone 11
301-823	Washington Zone 13
301-824	Smithsburg
301-825	Washington Zone 10
301-826	Lexington Park-Great Mills
301-827	Washington Zone 2
301-828	Washington Zone 2
301-829	Mount Airy
301-830	Washington Zone 3
301-831	Damascus
301-832	Washington Zone 4
301-833	Washington Zone 14
301-834	Brunswick
301-835	Frederick
301-836	Washington Zone 5
301-837	Washington Zone 13
301-838	Washington Zone 10
301-839	Washington Zone 6
301-840	Washington Zone 10
301-841	Washington Zone 2
301-842	Clear Spg
301-843	Washington Zone 6
301-844	Washington Zone 3
301-845	Walkersville
301-846	Frederick
301-847	Washington Zone 12
301-848	Waldorf
301-849	Oakland
301-850	Washington Zone 14
301-851	Washington Zone 4
301-852	Washington Zone 4
301-853	Washington Zone 4
301-854	Ashton
301-855	Washington Zone 15
301-856	Washington Zone 16
301-857	Clear Spg
301-858	Washington Zone 14
301-859	Oakland
301-860	Washington Zone 14
301-861	Waldorf
301-862	Lexington Park-Great Mills
301-863	Lexington Park-Great Mills
301-864	Washington Zone 4
301-865	New Market
301-866	Lexington Park-Great Mills
301-867	Washington Zone 14
301-868	Washington Zone 16
301-869	Gaithersburg
301-870	Washington Zone 6
301-871	Washington Zone 11
301-872	Ridge
301-873	Washington Zone 3
301-874	Buckeyestown
301-875	Laurel
301-876	Cumberland
301-877	Washington Zone 16
301-878	Baltimore
301-879	Washington Zone 12
301-880	Lexington Park-Great Mills
301-881	Washington Zone 11
301-882	New Market
301-883	Washington Zone 5
301-884	Mechanicsville
301-885	Waldorf
301-886	Washington Zone 13
301-887	Washington Zone 4
301-888	Washington Zone 16
301-889	Washington Zone 14
301-890	Washington Zone 12
301-891	Washington Zone 3
301-892	Washington Zone 4
301-893	Washington Zone 6
301-894	Washington Zone 6
301-895	Grantsville
301-896	Washington Zone 2
301-897	Washington Zone 2
301-898	Frederick
301-899	Washington Zone 5
301-900	Washington Zone 2
301-901	Washington Zone 13
301-902	Washington Zone 13
301-903	Washington Zone 10
301-904	Leonardtown
301-905	Washington Zone 3
301-906	Washington Zone 2
301-907	Washington Zone 2
301-908	Washington Zone 3
301-909	Washington Zone 5
301-910	Washington Zone 2
301-912	Washington Zone 14
301-913	Washington Zone 2
301-914	Oakland
301-915	Washington Zone 2
301-916	Gaithersburg
301-917	Washington Zone 10
301-918	Washington Zone 4
301-919	Washington Zone 2
301-920	Washington Zone 3
301-921	Washington Zone 10
301-922	Washington Zone 3
301-923	Washington Zone 13
301-924	Washington Zone 12
301-925	Washington Zone 5
301-926	Gaithersburg
301-927	Washington Zone 4
301-928	Washington Zone 3
301-929	Washington Zone 11
301-930	Washington Zone 3
301-931	Washington Zone 13
301-932	Waldorf
301-933	Washington Zone 11
301-934	La Plata
301-935	Washington Zone 13
301-936	Hagerstown
301-937	Washington Zone 13
301-938	Washington Zone 3
301-939	Washington Zone 13
301-940	Washington Zone 2
301-941	Washington Zone 2
301-942	Washington Zone 11
301-943	Washington Zone 3
301-944	Gaithersburg
301-945	Washington Zone 11
301-946	Washington Zone 11
301-947	Gaithersburg
301-948	Washington Zone 10
301-949	Washington Zone 11
301-951	Washington Zone 2
301-952	Washington Zone 15
301-953	Washington Zone 13
301-955	Washington Zone 4
301-956	Gaithersburg
301-957	Laurel
301-960	Washington Zone 3
301-961	Washington Zone 2
301-962	Washington Zone 11
301-963	Gaithersburg
301-964	Myersville
301-965	Washington Zone 6
301-966	Washington Zone 12
301-967	Washington Zone 5
301-968	Washington Zone 2
301-969	Brunswick
301-970	Washington Zone 14
301-971	Washington Zone 6
301-972	Gaithersburg
301-973	Washington Zone 14
301-974	Laurel
301-975	Washington Zone 10
301-977	Gaithersburg
301-978	Washington Zone 10
301-979	Washington Zone 10
301-980	Washington Zone 3
301-981	Washington Zone 5
301-982	Washington Zone 13
301-983	Washington Zone 10
301-984	Washington Zone 11
301-985	Washington Zone 4
301-986	Washington Zone 2
301-987	Gaithersburg
301-988	Hagerstown
301-989	Washington Zone 12
301-990	Gaithersburg
301-991	Hagerstown
301-992	Hagerstown
301-993	Washington Zone 13
301-994	Lexington Park-Great Mills
301-995	Lexington Park-Great Mills
301-996	Washington Zone 3
301-997	Leonardtown
301-998	Washington Zone 11

Cities in 301 area code with ZIP codes

Following table shows the top cities of 301 phone area code by population. Major cities often have a special area code all their own, but smaller towns might share one with the neighboring areas.To help in improving your search 301 area code zip code are also listed below. Ensure that you enter the correct ZIP code for your needs.

Major Cities By Population ⬇	Zip Codes
Baltimore	21201-21231, 21234-21237, 21239-21241
Arlington	22201-22207, 22209-22220, 22224, 22226-22228, 22230, 22232-22240, 22242, 22243, 22246
Columbia	21044, 21045, 21046
Waldorf	20603, 20602
Silver Spring	20901-20911
Frederick	21701, 21702, 21704
Gaithersburg	20877, 20878, 20879, 20886
Bethesda	20814, 20815, 20816, 20817, 20852, 20854
Rockville	20850, 20851, 20852, 20853, 20854
Bowie	20714, 20715, 20716, 20718, 20719, 20720
Potomac	20854, 20859
Hagerstown	21740, 21742, 21744, 21745, 21746, 21749
Odenton	21113
Annapolis	21401, 21403, 21404, 21409
Clinton	20735, 20736
Montgomery Village	20886
College Park	20740, 20742
Laurel	20707, 20708
Clarksburg	20871
Suitland	20746

Counties in 301 area code

Do you know what are the counties are covered under area code 301? Following table shows the all counties of area code for 301 by population. To ease in finding your required information area code 301 cities zip codes are also given.

All Counties
Montgomery, MD	Prince Georges, MD
Frederick, MD	Anne Arundel, MD
Charles, MD	Howard, MD
Washington, MD	Saint Marys, MD
Allegany, MD	Garrett, MD
Arlington, VA	Baltimore City, MD
Calvert, MD

Frequently Asked Questions

What area code is 301 ?
» 301 is the area code for Maryland (MD), USA. Please review the information above for more specific details.
What is 301 area code time zone ?
» The 301 area code time zone is located in the Eastern Time Zone.
What are the areas covered by 301 area code ?
» A complete list of 301 area code location, area, cities and counties covered by area code 301 are list above with thier zip codes.
What are the coordinates of 301 area code ?
» The coordinates for 301 area code are 39.3845° N, 77.4702° W.
Is area code 301 a toll-free code?
» Toll-free numbers in the US and Canada start with the digits 800, 844, 855, 866, 877, or 888. If an area code 301 usa does not start with one of these digits, it is not a toll-free code.
Is area code 301 a scam code? ?
» There are some area codes that are known to be used by scammers. You can find a list of these area codes on the websites of the Federal Trade Commission (FTC) and the Federal Communications Commission (FCC).

References

• Area codes 301