240 Area Code

Area Code 240 Map

Area code 240 generally covers Mount Rainier, Laurel, and Chevy Chase in the U.S. State of Maryland.

Top cities in area code 240

City	Prefixes
Mount Rainier, MD	8.8%
Laurel, MD	8.1%
Chevy Chase, MD	7.2%
Frederick, MD	7.2%
Silver Spring, MD	7%
Rockville, MD	5.9%
Montgomery Village, MD	5.4%
Hagerstown, MD	4.3%
Waldorf, MD	3.8%
Glen Echo, MD	3.4%

Top telephone carriers in area code 240

Carrier	Prefixes
Verizon	17.7%
Sprint Spectrum	10.7%
New Cingular Wireless	8.3%
Level 3 Communications	6%
Peerless Network Of Maryland	6%
Omnipoint Communications Cap Operations	5.7%
XO Communications	4.7%
Core Communications	4.4%
Onvoy	4.2%
Global Crossing Local Services	3.2%

Area code 240 has 683 prefixes

Prefix	Primary City	Usage	Carrier
240-200	Mount Rainier	Landline	Bandwidth.com
240-201	Ridge	Landline	Peerless Network Of Maryland
240-202	Cascade	Landline	Onvoy
240-203	Hagerstown	Wireless	Sprint Spectrum
240-204	Chevy Chase	Wireless	Verizon
240-205	Glen Echo	Wireless	New Cingular Wireless
240-206	Lanham	Landline	XO Communications
240-207	Monrovia	Landline	Cavalier East
240-208	Port Tobacco	Landline	Peerless Network Of Maryland
240-209	Indian Head	Landline	Peerless Network Of Maryland
240-210	Waldorf	Wireless	New Cingular Wireless
240-212	Oakland	Landline	Core Communications
240-213	Waldorf	Landline	Peerless Network Of Maryland
240-214	Mechanicsville	Landline	Peerless Network Of Maryland
240-215	Frederick	Landline	Level 3 Communications
240-216	Waldorf	Wireless	Sprint Spectrum
240-217	Hagerstown	Wireless	Omnipoint Communications Cap Operations
240-218	Nanjemoy	Landline	Peerless Network Of Maryland
240-219	Ridge	Landline	Peerless Network Of Maryland
240-220	Poolesville	Landline	Peerless Network Of Maryland
240-221	Rockville	Landline	Verizon
240-222	Waldorf	Landline	Cavalier Telephone Mid-atlantic
240-223	Mount Rainier	Landline	Allegiance Telecom Of Maryland
240-224	Montgomery Village	Wireless	Verizon
240-225	Frederick	Landline	Core Communications
240-226	Oakland	Landline	Onvoy
240-228	Laurel	Landline	Verizon
240-229	Waldorf	Landline	Level 3 Communications
240-230	Hughesville	Landline	Global Crossing Local Services
240-231	Hagerstown	Landline	Core Communications
240-232	Mount Rainier	Landline	Level 3 Communications
240-233	Newburg	Landline	Teleport Communications America
240-234	Oxon Hill	Wireless	Verizon
240-235	Chevy Chase	Landline	Paetec Communications
240-236	Frederick	Landline	Verizon
240-237	Lexington Park	Landline	Teleport Communications America
240-238	Rockville	Landline	Paetec Communications
240-239	Leonardtown	Landline	Core Communications
240-240	Frederick	Landline	Fractel
240-241	Chevy Chase	Landline	Starpower Communications
240-242	Mount Rainier	Landline	Starpower Communications
240-243	Montgomery Village	Landline	Allegiance Telecom Of Maryland
240-244	Mount Rainier	Landline	Starpower Communications
240-245	Lanham	Landline	Starpower Communications
240-246	Montgomery Village	Landline	Starpower Communications
240-247	Mount Rainier	Landline	Allegiance Telecom Of Maryland
240-248	Ridge	Landline	Peerless Network Of Maryland
240-249	Mechanicsville	Landline	Teleport Communications America
240-250	Brandywine	Landline	Peerless Network Of Maryland
240-251	Cascade	Landline	Core Communications
240-252	Montgomery Village	Landline	Level 3 Communications
240-253	Temple Hills	Landline	Global Crossing Local Services
240-254	Hughesville	Landline	Teleport Communications America
240-255	Poolesville	Landline	Peerless Network Of Maryland
240-256	Leonardtown	Landline	Teleport Communications America
240-257	Nanjemoy	Landline	Teleport Communications America
240-258	Ridge	Landline	Teleport Communications America
240-260	Lanham	Landline	Allegiance Telecom Of Maryland
240-261	Montgomery Village	Landline	Onvoy
240-262	Lexington Park	Wireless	Sprint Spectrum
240-263	Chevy Chase	Wireless	Sprint Spectrum
240-264	Laurel	Landline	Verizon
240-265	Chevy Chase	Wireless	Sprint Spectrum
240-266	Lanham	Landline	Peerless Network Of Maryland
240-267	Hagerstown	Wireless	Verizon
240-268	Rockville	Landline	Allegiance Telecom Of Maryland
240-269	Mount Rainier	Landline	Peerless Network Of Maryland
240-270	Waldorf	Wireless	Verizon
240-271	Chevy Chase	Wireless	New Cingular Wireless
240-272	Chevy Chase	Wireless	Sprint Spectrum
240-273	Mount Rainier	Landline	Level 3 Communications
240-274	Chevy Chase	Wireless	New Cingular Wireless
240-275	Grantsville	Landline	Core Communications
240-276	Rockville	Landline	Verizon
240-277	Chevy Chase	Wireless	Sprint Spectrum
240-278	Laurel	Wireless	Verizon
240-279	Waldorf	Landline	Core Communications
240-280	Laurel	Landline	Comcast Ip Phone
240-281	Chevy Chase	Wireless	New Cingular Wireless
240-282	Mechanicsville	Landline	Peerless Network Of Maryland
240-283	Silver Spring	Landline	Paetec Communications
240-284	Frostburg	Landline	Level 3 Communications
240-285	Frederick	Landline	Verizon
240-286	Chevy Chase	Wireless	Sprint Spectrum
240-287	Hancock	Landline	Core Communications
240-288	Thurmont	Landline	Comcast Ip Phone
240-289	Temple Hills	Landline	Cavalier Telephone Mid-atlantic
240-290	Mount Rainier	Landline	Allegiance Telecom Of Maryland
240-291	Hagerstown	Wireless	New Cingular Wireless
240-292	Silver Spring	Landline	Verizon
240-293	Mount Rainier	Landline	Starpower Communications
240-294	Laurel	Landline	XO Communications
240-295	Laurel	Landline	Cavalier Telephone Mid-atlantic
240-296	Mount Rainier	Landline	Cavalier Telephone Mid-atlantic
240-297	Riverdale	Landline	Level 3 Communications
240-298	Leonardtown	Wireless	Verizon
240-299	Waldorf	Wireless	Sprint Spectrum
240-300	Waldorf	Wireless	Verizon
240-301	Clear Spring	Landline	Onvoy
240-302	Laurel	Wireless	New Cingular Wireless
240-303	Clinton	Landline	Cavalier Telephone Mid-atlantic
240-304	Mount Rainier	Wireless	Sprint Spectrum
240-305	Laurel	Wireless	Sprint Spectrum
240-306	Montgomery Village	Landline	Allegiance Telecom Of Maryland
240-307	Emmitsburg	Landline	AT&T
240-308	Monrovia	Wireless	New Cingular Wireless
240-309	Silver Spring	Wireless	Verizon
240-310	Hagerstown	Wireless	Uscoc Of Cumberland
240-312	Hyattsville	Landline	Cavalier Telephone Mid-atlantic
240-313	Hagerstown	Landline	Verizon
240-314	Rockville	Landline	Verizon
240-315	Frederick	Landline	Verizon
240-316	Chevy Chase	Wireless	Sprint Spectrum
240-317	Lexington Park	Landline	Starpower Communications
240-318	Clinton	Landline	Verizon
240-319	Columbia	Wireless	Verizon
240-320	Waldorf	Landline	Cavalier East
240-321	Oakland	Wireless	Uscoc Of Cumberland
240-322	Westernport	Landline	Core Communications
240-323	Emmitsburg	Landline	Core Communications
240-324	Highland	Landline	Ymax Communications
240-325	Monrovia	Landline	Core Communications
240-326	Upper Marlboro	Landline	Cavalier Telephone Mid-atlantic
240-327	Montgomery Village	Landline	Core Communications
240-328	Rockville	Landline	Verizon
240-329	Hagerstown	Landline	Level 3 Communications
240-330	Mount Rainier	Wireless	Sprint Spectrum
240-331	Mount Rainier	Landline	Peerless Network Of Maryland
240-332	Newburg	Landline	Peerless Network Of Maryland
240-333	Mount Rainier	Landline	Cavalier East
240-334	Lanham	Landline	Global Crossing Local Services
240-335	Lanham	Landline	Cavalier Telephone Mid-atlantic
240-336	Chevy Chase	Landline	Core Communications
240-338	Silver Spring	Wireless	Verizon
240-339	Upper Marlboro	Landline	Cavalier East
240-340	Chevy Chase	Wireless	Sprint Spectrum
240-341	Frederick	Landline	Mcimetro Access Transmission Services
240-342	Sandy Spring	Landline	Starpower Communications
240-343	Hancock	Wireless	Verizon
240-344	Frederick	Wireless	New Cingular Wireless
240-345	Sandy Spring	Landline	Level 3 Communications
240-346	Waldorf	Wireless	Sprint Spectrum
240-347	Hagerstown	Landline	Bandwidth.com
240-348	Clinton	Landline	Level 3 Communications
240-349	Port Tobacco	Landline	Global Crossing Local Services
240-350	Laurel	Wireless	Sprint Spectrum
240-351	Laurel	Wireless	Sprint Spectrum
240-352	Port Tobacco	Landline	Peerless Network Of Maryland
240-353	Laurel	Wireless	Sprint Spectrum
240-354	Laurel	Wireless	Sprint Spectrum
240-355	Laurel	Wireless	Sprint Spectrum
240-356	Frederick	Landline	Level 3 Communications
240-357	Frederick	Wireless	Verizon
240-358	Monrovia	Landline	Peerless Network Of Maryland
240-359	Indian Head	Landline	Peerless Network Of Maryland
240-360	Laurel	Wireless	Omnipoint Communications Cap Operations
240-361	Montgomery Village	Landline	Cavalier Telephone Mid-atlantic
240-362	Cumberland	Landline	Verizon
240-363	Silver Spring	Landline	Onvoy
240-364	Montgomery Village	Landline	Cavalier East
240-365	Monrovia	Landline	Baltimore-washington Telephone (bwt)
240-366	Williamsport	Landline	AT&T
240-367	Frederick	Wireless	Sprint Spectrum
240-368	Waldorf	Landline	Peerless Network Of Maryland
240-369	Mount Airy	Landline	Core Communications
240-370	Chevy Chase	Wireless	Sprint Spectrum
240-371	Mount Rainier	Landline	Peerless Network Of Maryland
240-372	Montgomery Village	Wireless	Sprint Spectrum
240-373	Odenton	Landline	Verizon
240-374	Laurel	Landline	Global Crossing Local Services
240-375	Suitland	Wireless	Sprint Spectrum
240-376	Hughesville	Landline	Peerless Network Of Maryland
240-377	Indian Head	Landline	Global Crossing Local Services
240-378	Cumberland	Landline	Core Communications
240-379	Frederick	Landline	Verizon
240-380	Glen Echo	Wireless	Verizon
240-381	Silver Spring	Wireless	New Cingular Wireless
240-382	Hagerstown	Landline	Teleport Communications America
240-383	Chevy Chase	Wireless	New Cingular Wireless
240-384	Lexington Park	Landline	Peerless Network Of Maryland
240-385	Myersville	Landline	Verizon
240-386	Montgomery Village	Landline	Verizon
240-387	Chevy Chase	Landline	Cavalier East
240-388	Montgomery Village	Wireless	Sprint Spectrum
240-389	Sandy Spring	Landline	Atx Communications Services
240-390	Sandy Spring	Landline	Cavalier Telephone Mid-atlantic
240-391	Riverdale	Landline	Global Crossing Local Services
240-392	Mount Rainier	Landline	Starpower Communications
240-393	Glen Echo	Wireless	Verizon
240-394	Mount Airy	Wireless	New Cingular Wireless
240-395	Chevy Chase	Landline	Cavalier Telephone Mid-atlantic
240-396	Chevy Chase	Landline	Global Crossing Local Services
240-397	Frederick	Wireless	Verizon
240-398	Glen Echo	Wireless	Sprint Spectrum
240-399	Chevy Chase	Landline	XO Communications
240-400	Chevy Chase	Wireless	Sprint Spectrum
240-401	Rockville	Wireless	New Cingular Wireless
240-402	Riverdale	Landline	Mcimetro Access Transmission Services
240-403	Rockville	Landline	Cavalier Telephone Mid-atlantic
240-404	Montgomery Village	Landline	XO Communications
240-405	Frederick	Landline	US Lec Of Maryland
240-406	Rockville	Wireless	New Cingular Wireless
240-407	Clinton	Landline	Global Crossing Local Services
240-408	Rockville	Wireless	New Cingular Wireless
240-409	Frederick	Wireless	New Cingular Wireless
240-410	Cumberland	Wireless	Omnipoint Communications Cap Operations
240-412	Waldorf	Wireless	Sprint Spectrum
240-413	Mount Rainier	Wireless	Omnipoint Communications Cap Operations
240-414	Mount Rainier	Landline	Peerless Network Of Maryland
240-415	Frederick	Landline	Ymax Communications
240-416	Waldorf	Wireless	New Cingular Wireless
240-417	Suitland	Wireless	Sprint Spectrum
240-418	Laurel	Wireless	Sprint Spectrum
240-419	Waldorf	Wireless	Verizon
240-420	Hagerstown	Landline	Verizon
240-421	Rockville	Wireless	Omnipoint Communications Cap Operations
240-422	Frederick	Wireless	Omnipoint Communications Cap Operations
240-423	Silver Spring	Wireless	Omnipoint Communications Cap Operations
240-424	Mount Rainier	Wireless	Sprint Spectrum
240-426	Chevy Chase	Wireless	Sprint Spectrum
240-427	Waldorf	Landline	XO Communications
240-428	Rockville	Landline	Bandwidth.com
240-429	Silver Spring	Wireless	Verizon
240-430	Silver Spring	Landline	Cavalier Telephone Mid-atlantic
240-431	Tall Timbers	Wireless	Sprint Spectrum
240-432	Laurel	Wireless	Sprint Spectrum
240-433	Silver Spring	Landline	Cavalier Telephone Mid-atlantic
240-434	Leonardtown	Landline	Level 3 Communications
240-435	Waldorf	Wireless	Verizon
240-436	Ijamsville	Landline	Level 3 Communications
240-437	Sandy Spring	Landline	XO Communications
240-438	Silver Spring	Wireless	Sprint Spectrum
240-439	Frederick	Wireless	Verizon
240-440	Frederick	Wireless	New Cingular Wireless
240-441	Temple Hills	Wireless	Omnipoint Communications Cap Operations
240-442	Oakland	Landline	Verizon
240-443	Temple Hills	Landline	Onvoy
240-444	Laurel	Wireless	Verizon
240-445	Chevy Chase	Wireless	Sprint Spectrum
240-446	Frederick	Wireless	Verizon
240-447	Rockville	Wireless	New Cingular Wireless
240-448	Waldorf	Wireless	Sprint Spectrum
240-449	Montgomery Village	Wireless	New Cingular Wireless
240-450	Silver Spring	Landline	Cavalier Telephone Mid-atlantic
240-451	Thurmont	Landline	Onvoy
240-452	Hagerstown	Landline	Lumos Networks Inc.
240-453	Rockville	Landline	Verizon
240-454	Montgomery Village	Wireless	Paetec Communications
240-455	Hyattsville	Landline	Paetec Communications
240-456	Laurel	Landline	Verizon
240-457	Frederick	Wireless	Verizon
240-458	Waldorf	Wireless	Verizon
240-459	Laurel	Wireless	Verizon
240-460	Silver Spring	Wireless	New Cingular Wireless
240-461	Silver Spring	Wireless	New Cingular Wireless
240-462	Laurel	Wireless	Sprint Spectrum
240-463	Silver Spring	Wireless	New Cingular Wireless
240-464	Chevy Chase	Landline	Sprint Spectrum
240-465	Mount Rainier	Landline	Peerless Network Of Maryland
240-466	Mechanicsville	Wireless	New Cingular Wireless
240-467	Mount Rainier	Landline	Comcast Ip Phone
240-468	Mount Rainier	Wireless	Sprint Spectrum
240-469	Hagerstown	Wireless	Sprint Spectrum
240-470	Laurel	Wireless	Verizon
240-471	Silver Spring	Landline	Global Crossing Local Services
240-472	Silver Spring	Wireless	New Cingular Wireless
240-473	Riverdale	Landline	Cavalier Telephone Mid-atlantic
240-474	Montgomery Village	Landline	Baltimore-washington Telephone (bwt)
240-475	Silver Spring	Wireless	New Cingular Wireless
240-476	Silver Spring	Wireless	Omnipoint Communications Cap Operations
240-477	Montgomery Village	Landline	Lightwave Communications
240-478	Glen Echo	Wireless	New Cingular Wireless
240-479	Temple Hills	Wireless	Verizon
240-480	Chevy Chase	Wireless	Sprint Spectrum
240-481	Silver Spring	Wireless	Omnipoint Communications Cap Operations
240-482	Glen Echo	Landline	US Lec Of Maryland
240-483	Glen Echo	Landline	Comcast Ip Phone
240-484	Laurel	Wireless	New Cingular Wireless
240-485	Glen Echo	Landline	US Lec Of Maryland
240-486	Lanham	Wireless	Omnipoint Communications Cap Operations
240-487	Mount Rainier	Landline	US Lec Of Maryland
240-488	Oakland	Landline	Shentel Communications
240-489	Poolesville	Landline	XO Communications
240-490	Middletown	Wireless	Omnipoint Communications Cap Operations
240-491	Silver Spring	Landline	Global Crossing Local Services
240-492	Hyattsville	Landline	US Lec Of Maryland
240-493	Temple Hills	Landline	US Lec Of Maryland
240-494	Mount Rainier	Landline	Cavalier East
240-495	Mount Rainier	Wireless	Verizon
240-496	Leonardtown	Wireless	Verizon
240-497	Chevy Chase	Landline	Verizon
240-498	Laurel	Wireless	Sprint Spectrum
240-499	Rockville	Landline	US Lec Of Maryland
240-500	Hagerstown	Landline	US Lec Of Maryland
240-501	Silver Spring	Wireless	Sprint Spectrum
240-502	Silver Spring	Wireless	Sprint Spectrum
240-503	Newburg	Landline	Peerless Network Of Maryland
240-504	Silver Spring	Wireless	Sprint Spectrum
240-505	Silver Spring	Wireless	Omnipoint Communications Cap Operations
240-506	Rockville	Wireless	New Cingular Wireless
240-507	Mount Rainier	Wireless	Verizon
240-508	Suitland	Wireless	Sprint Spectrum
240-509	Gambrills	Landline	Bandwidth.com
240-510	Upper Marlboro	Landline	XO Communications
240-512	Riverdale	Landline	Core Communications
240-513	Hagerstown	Wireless	Sprint Spectrum
240-514	Mount Rainier	Landline	US Lec Of Maryland
240-515	Chevy Chase	Wireless	New Cingular Wireless
240-516	Silver Spring	Landline	US Lec Of Maryland
240-517	Columbia	Wireless	Verizon
240-518	Waldorf	Wireless	Sprint Spectrum
240-519	Chevy Chase	Wireless	Sprint Spectrum
240-520	Hagerstown	Wireless	Sprint Spectrum
240-521	Rockville	Landline	New Cingular Wireless
240-522	Cumberland	Wireless	Sprint Spectrum
240-523	Port Tobacco	Landline	XO Communications
240-524	Laurel	Landline	Peerless Network Of Maryland
240-525	Upper Marlboro	Landline	Peerless Network Of Maryland
240-526	Leonardtown	Landline	Peerless Network Of Maryland
240-527	Hagerstown	Landline	Verizon
240-528	Hughesville	Landline	Level 3 Communications
240-529	Frederick	Landline	Verizon
240-530	Waldorf	Landline	Local Access
240-531	Silver Spring	Landline	Telnyx
240-532	Hyattsville	Wireless	Verizon
240-533	Mount Rainier	Landline	Teleport Communications America
240-534	Chevy Chase	Wireless	Verizon
240-535	Silver Spring	Wireless	New Cingular Wireless
240-536	Sandy Spring	Landline	Peerless Network Of Maryland
240-537	Hagerstown	Landline	Atlantech Online
240-538	Leonardtown	Landline	XO Communications
240-539	Mount Rainier	Landline	Peerless Network Of Maryland
240-540	Ellicott City	Landline	Wide Voice
240-541	Chevy Chase	Wireless	Sprint Spectrum
240-542	Riverdale	Landline	US Lec Of Maryland
240-543	Chevy Chase	Wireless	Sprint Spectrum
240-544	Lanham	Landline	US Lec Of Maryland
240-545	Upper Marlboro	Landline	US Lec Of Maryland
240-546	Clinton	Landline	US Lec Of Maryland
240-547	Laurel	Landline	Level 3 Communications
240-548	Mount Rainier	Landline	Allegiance Telecom Of Maryland
240-549	Frederick	Wireless	Verizon
240-550	Rockville	Wireless	New Cingular Wireless
240-551	Rockville	Wireless	New Cingular Wireless
240-552	Rockville	Wireless	New Cingular Wireless
240-553	Riverdale	Landline	Allegiance Telecom Of Maryland
240-554	Laurel	Landline	Allegiance Telecom Of Maryland
240-556	Lanham	Landline	Paetec Communications
240-557	Temple Hills	Wireless	Omnipoint Communications Cap Operations
240-558	Silver Spring	Landline	Cavalier Telephone Mid-atlantic
240-559	Sandy Spring	Landline	Allegiance Telecom Of Maryland
240-560	Silver Spring	Landline	XO Communications
240-561	Leonardtown	Wireless	Verizon
240-562	Montgomery Village	Landline	Mcimetro Access Transmission Services
240-563	Hyattsville	Landline	Onvoy
240-564	Laurel	Wireless	Omnipoint Communications Cap Operations
240-565	Laurel	Wireless	Omnipoint Communications Cap Operations
240-566	Frederick	Landline	Verizon
240-567	Rockville	Landline	Verizon
240-568	Laurel	Landline	Verizon
240-569	Oldtown	Landline	Bandwidth.com
240-570	Highland	Landline	Onvoy
240-572	Leonardtown	Wireless	Verizon
240-573	Upper Marlboro	Landline	Global Crossing Local Services
240-574	Ridge	Landline	New Cingular Wireless
240-575	Frederick	Landline	Level 3 Communications
240-576	Hagerstown	Landline	Vonage America
240-577	Leonardtown	Wireless	Verizon
240-578	Frederick	Wireless	Verizon
240-579	Sandy Spring	Wireless	Omnipoint Communications Cap Operations
240-580	Cumberland	Wireless	Sprint Spectrum
240-581	Laurel	Landline	Paetec Communications
240-582	Riverdale	Landline	Verizon
240-583	Laurel	Landline	Verizon
240-584	Laurel	Wireless	Omnipoint Communications Cap Operations
240-585	Waldorf	Wireless	Verizon
240-586	Frederick	Landline	Verizon
240-587	Leonardtown	Wireless	Verizon
240-588	Grantsville	Landline	Mcimetro Access Transmission Services
240-589	Westernport	Wireless	New Cingular Wireless
240-590	Mount Rainier	Wireless	T-Mobile
240-591	Hagerstown	Landline	Shentel Communications
240-592	Laurel	Landline	Verizon
240-593	Laurel	Wireless	Omnipoint Communications Cap Operations
240-594	Bittinger	Landline	Bandwidth.com
240-595	Chevy Chase	Wireless	Verizon
240-596	Chevy Chase	Landline	Core Communications
240-597	Montgomery Village	Landline	Peerless Network Of Maryland
240-598	Hughesville	Landline	Core Communications
240-599	Rockville	Landline	Level 3 Communications
240-600	Mount Rainier	Wireless	Sprint Spectrum
240-601	Laurel	Wireless	Sprint Spectrum
240-602	Laurel	Wireless	Sprint Spectrum
240-603	Laurel	Wireless	Sprint Spectrum
240-604	Laurel	Wireless	Sprint Spectrum
240-605	Laurel	Wireless	Sprint Spectrum
240-606	Laurel	Wireless	Sprint Spectrum
240-607	Waldorf	Landline	Global Crossing Local Services
240-608	Frederick	Wireless	Brightlink Communications
240-609	Cumberland	Wireless	New Cingular Wireless
240-610	Chevy Chase	Landline	Core Communications
240-612	Mount Rainier	Landline	Level 3 Telecom Of Maryland
240-613	Mount Rainier	Landline	US Lec Of Maryland
240-614	Rockville	Wireless	T-Mobile
240-615	Mount Rainier	Wireless	T-Mobile
240-616	Riverdale	Landline	Mcimetro Access Transmission Services
240-617	Hagerstown	Landline	Bandwidth.com
240-618	Rockville	Wireless	Verizon
240-620	Rockville	Landline	Mcimetro Access Transmission Services
240-622	Port Tobacco	Landline	Core Communications
240-623	Mount Rainier	Landline	Bandwidth.com
240-624	Riverdale	Landline	Verizon
240-625	Hagerstown	Wireless	Sprint Spectrum
240-626	Frederick	Wireless	Sprint Spectrum
240-627	Silver Spring	Landline	Global Crossing Local Services
240-628	Mechanicsville	Landline	Core Communications
240-629	Frederick	Landline	Verizon
240-630	Chevy Chase	Landline	Bandwidth.com
240-631	Montgomery Village	Landline	Verizon
240-632	Montgomery Village	Landline	Verizon
240-633	Hughesville	Landline	Baltimore-washington Telephone (bwt)
240-634	Ridge	Landline	Core Communications
240-635	Newburg	Landline	Core Communications
240-636	Laurel	Wireless	Omnipoint Communications Cap Operations
240-637	Chevy Chase	Landline	Core Communications
240-638	Mount Rainier	Landline	Level 3 Communications
240-639	Laurel	Landline	Core Communications
240-640	Waldorf	Wireless	New Cingular Wireless
240-641	Silver Spring	Landline	Peerless Network Of Maryland
240-642	Glen Echo	Landline	Advanced Telecom Solutions
240-643	Silver Spring	Wireless	Omnipoint Communications Cap Operations
240-644	Chevy Chase	Landline	XO Communications
240-645	Chevy Chase	Landline	XO Communications
240-646	Laurel	Landline	Cavalier East
240-647	Clear Spring	Landline	Core Communications
240-648	Keedysville	Landline	Core Communications
240-649	Smithsburg	Landline	Core Communications
240-650	Glen Echo	Landline	Onvoy
240-651	Frederick	Wireless	Verizon
240-652	Mechanicsville	Landline	XO Communications
240-654	Montgomery Village	Wireless	New Cingular Wireless
240-655	Kitzmiller	Landline	Onvoy
240-656	Poolesville	Wireless	New Cingular Wireless
240-657	Frederick	Landline	Mcimetro Access Transmission Services
240-658	Montgomery Village	Landline	Vonage America
240-659	Sandy Spring	Wireless	Omnipoint Communications Cap Operations
240-660	Rockville	Wireless	Verizon
240-661	Lexington Park	Landline	Baltimore-washington Telephone (bwt)
240-662	Takoma Park	Landline	Verizon
240-663	Middletown	Wireless	Omnipoint Communications Cap Operations
240-664	Cumberland	Landline	Peerless Network Of Maryland
240-665	Glen Echo	Wireless	Omnipoint Communications Cap Operations
240-666	Nanjemoy	Landline	Voxbeam Telecommunications Inc.
240-667	Mount Rainier	Landline	Global Crossing Local Services
240-668	Monrovia	Landline	Starpower Communications
240-669	Glen Echo	Landline	Comcast Ip Phone
240-670	Silver Spring	Landline	Local Access
240-671	Mount Rainier	Wireless	Sprint Spectrum
240-672	Rockville	Landline	Verizon
240-673	Mount Rainier	Landline	Bandwidth.com
240-674	Frederick	Wireless	Sprint Spectrum
240-675	Myersville	Wireless	New Cingular Wireless
240-676	Silver Spring	Wireless	Verizon
240-677	Takoma Park	Landline	Mcimetro Access Transmission Services
240-678	Silver Spring	Wireless	Verizon
240-679	Mc Henry	Landline	Core Communications
240-680	Frederick	Landline	Peerless Network Of Maryland
240-681	Brandywine	Landline	Atx Communications Services
240-682	Waldorf	Landline	Starpower Communications
240-683	Montgomery Village	Landline	Verizon
240-684	Riverdale	Landline	Verizon
240-685	Cheltenham	Landline	Global Crossing Local Services
240-686	Montgomery Village	Landline	Verizon
240-687	Silver Spring	Wireless	Verizon
240-688	Silver Spring	Wireless	Verizon
240-689	Upper Marlboro	Wireless	Csc Wireless
240-690	Montgomery Village	Landline	Teleport Communications America
240-691	Upper Marlboro	Landline	Global Crossing Local Services
240-692	Grantsville	Landline	Level 3 Communications
240-693	Walkersville	Landline	Peerless Network Of Maryland
240-694	Rockville	Landline	Verizon
240-695	Temple Hills	Landline	Verizon
240-696	Mount Rainier	Landline	Level 3 Communications
240-697	Mechanicsville	Landline	Coretel Maryland
240-698	Myersville	Wireless	Omnipoint Communications Cap Operations
240-699	Frederick	Landline	Verizon
240-701	Silver Spring	Wireless	New Cingular Wireless
240-702	Montgomery Village	Wireless	Verizon
240-703	Sandy Spring	Wireless	Omnipoint Communications Cap Operations
240-704	Mount Rainier	Wireless	New Cingular Wireless
240-705	Chevy Chase	Wireless	New Cingular Wireless
240-706	Mount Rainier	Wireless	New Cingular Wireless
240-707	Hagerstown	Wireless	New Cingular Wireless
240-708	Columbia	Wireless	Level 3 Communications
240-709	Laurel	Wireless	Omnipoint Communications Cap Operations
240-710	Frederick	Landline	Mcimetro Access Transmission Services
240-712	Columbia	Wireless	Verizon
240-713	Laurel	Landline	Peerless Network Of Maryland
240-714	Mount Rainier	Wireless	Omnipoint Communications Cap Operations
240-715	Rockville	Landline	Global Crossing Local Services
240-716	Hyattsville	Wireless	Omnipoint Communications Cap Operations
240-718	Lexington Park	Landline	XO Communications
240-719	Hyattsville	Wireless	Verizon
240-720	Montgomery Village	Landline	Global Crossing Local Services
240-721	Suitland	Landline	Verizon
240-722	Sandy Spring	Landline	Global Crossing Local Services
240-723	Silver Spring	Landline	Verizon
240-724	Temple Hills	Landline	Cavalier East
240-725	Patuxent River	Landline	Verizon
240-726	Laurel	Landline	Brightlink Communications
240-727	Cumberland	Wireless	New Cingular Wireless
240-728	Rockville	Landline	Vonage America
240-729	Sandy Spring	Wireless	Omnipoint Communications Cap Operations
240-730	Hagerstown	Landline	Hd Carrier
240-731	Rockville	Wireless	New Cingular Wireless
240-732	Mount Airy	Wireless	New Cingular Wireless
240-733	Sandy Spring	Landline	Fractel
240-734	Hagerstown	Landline	Bandwidth.com
240-735	Knoxville	Landline	Brightlink Communications
240-736	Laurel	Wireless	New Cingular Wireless
240-737	Mount Rainier	Landline	Cavalier East
240-738	Hancock	Wireless	Verizon
240-739	Frederick	Landline	Ip Horizon
240-740	Glen Echo	Landline	Atlantech Online
240-741	Frederick	Landline	Airespring
240-742	Laurel	Landline	Brightlink Communications
240-743	Glen Echo	Landline	Local Access
240-744	Glen Echo	Landline	Level 3 Communications
240-745	Monrovia	Landline	XO Communications
240-746	Brandywine	Landline	AT&T
240-747	Glen Echo	Landline	Cavalier East
240-748	Mount Rainier	Landline	Teleport Communications America
240-749	Columbia	Wireless	Verizon
240-750	Montgomery Village	Wireless	New Cingular Wireless
240-751	Montgomery Village	Landline	Level 3 Communications
240-752	Chevy Chase	Landline	Level 3 Communications
240-753	Rockville	Landline	Level 3 Communications
240-754	Waldorf	Landline	Level 3 Communications
240-755	Laurel	Landline	Comcast Ip Phone
240-756	Rockville	Wireless	Omnipoint Communications Cap Operations
240-757	Mount Rainier	Landline	Peerless Network Of Maryland
240-758	Laurel	Wireless	New Cingular Wireless
240-759	Sunderland	Landline	Radiantiq
240-760	Takoma Park	Wireless	Verizon
240-762	Mount Rainier	Wireless	Verizon
240-763	Sunderland	Landline	Bandwidth.com
240-764	Mount Rainier	Landline	XO Communications
240-765	Chevy Chase	Landline	XO Communications
240-766	Temple Hills	Landline	XO Communications
240-767	Suitland	Landline	Cavalier East
240-770	Mount Rainier	Landline	Comcast Ip Phone
240-771	Poolesville	Landline	Onvoy
240-772	Frederick	Wireless	Verizon
240-773	Rockville	Landline	Verizon
240-774	Lonaconing	Landline	Bandwidth.com
240-775	Westernport	Landline	Bandwidth.com
240-776	Port Tobacco	Landline	Level 3 Communications
240-777	Rockville	Landline	Verizon
240-778	Chevy Chase	Landline	XO Communications
240-779	Sandy Spring	Landline	Cavalier East
240-780	Montgomery Village	Landline	Level 3 Communications
240-781	Glen Echo	Landline	Mcimetro Access Transmission Services
240-782	Monrovia	Landline	Global Crossing Local Services
240-783	Chevy Chase	Wireless	Mte
240-784	Myersville	Wireless	Omnipoint Communications Cap Operations
240-786	Laurel	Landline	Level 3 Communications
240-787	Brandywine	Landline	Level 3 Communications
240-788	Hyattsville	Landline	Level 3 Communications
240-790	Riverdale	Landline	Level 3 Communications
240-793	Montgomery Village	Wireless	Sprint Spectrum
240-794	Lexington Park	Landline	Level 3 Communications
240-799	Brandywine	Landline	Fractel
240-800	Chevy Chase	Landline	Core Communications
240-801	Montgomery Village	Wireless	Verizon
240-802	Oxon Hill	Wireless	Brightlink Communications
240-803	Cumberland	Wireless	New Cingular Wireless
240-804	Newburg	Landline	XO Communications
240-805	Montgomery Village	Wireless	Verizon
240-806	Indian Head	Landline	Peerless Network Of Maryland
240-808	Leonardtown	Wireless	Verizon
240-810	Glen Echo	Wireless	Omnipoint Communications Cap Operations
240-812	Poolesville	Landline	Global Crossing Local Services
240-813	Montgomery Village	Landline	Atx Communications Services
240-815	Frederick	Wireless	Verizon
240-816	Hagerstown	Landline	Bandwidth.com
240-817	Sandy Spring	Wireless	Omnipoint Communications Cap Operations
240-818	Smithsburg	Landline	Verizon
240-820	Highland	Landline	Radiantiq
240-821	Silver Spring	Landline	Lightwave Communications
240-822	New Market	Landline	Radiantiq
240-823	Brandywine	Landline	XO Communications
240-824	Cumberland	Landline	Radiantiq
240-825	Mount Rainier	Wireless	Verizon
240-826	Rockville	Landline	Verizon
240-828	Mount Rainier	Wireless	Telnyx
240-829	Emmitsburg	Landline	Coretel Maryland
240-830	Hyattsville	Landline	Comcast Ip Phone
240-831	Frederick	Landline	Onvoy
240-832	Chevy Chase	Wireless	Sprint Spectrum
240-833	Silver Spring	Landline	XO Communications
240-834	Kitzmiller	Landline	Radiantiq
240-837	Hughesville	Landline	XO Communications
240-838	Glen Echo	Wireless	Omnipoint Communications Cap Operations
240-839	Silver Spring	Wireless	Verizon
240-840	Frederick	Wireless	Onvoy Spectrum
240-841	Laurel	Landline	XO Communications
240-842	Lanham	Landline	XO Communications
240-843	Riverdale	Landline	XO Communications
240-844	Ridge	Landline	XO Communications
240-845	Chevy Chase	Landline	XO Communications
240-846	Clinton	Landline	XO Communications
240-847	Silver Spring	Landline	Onvoy
240-848	Montgomery Village	Wireless	Sprint Spectrum
240-850	Hagerstown	Landline	Peerless Network Of Maryland
240-851	Westernport	Landline	Onvoy
240-855	Glen Echo	Wireless	Sprint Spectrum
240-856	Columbia	Wireless	Verizon
240-857	Mount Rainier	Landline	Level 3 Telecom Of Maryland
240-858	Chevy Chase	Wireless	Verizon
240-859	Highland	Landline	Onvoy
240-860	Cumberland	Landline	Peerless Network Of Maryland
240-862	Mount Savage	Landline	Onvoy
240-863	Mount Rainier	Landline	Level 3 Telecom Of Maryland
240-864	Rockville	Landline	Cavalier East
240-865	Halethorpe	Landline	Level 3 Communications
240-866	Hagerstown	Landline	Terra Nova Telecom Inc.
240-867	Takoma Park	Landline	Commio
240-868	Mount Rainier	Landline	Cavalier East
240-870	Frederick	Landline	Onvoy
240-873	Frederick	Landline	Onvoy
240-874	Thurmont	Landline	Onvoy
240-875	Mount Airy	Landline	Onvoy
240-876	Chevy Chase	Wireless	Sprint Spectrum
240-877	Frederick	Landline	Onvoy
240-878	Hagerstown	Landline	Commio
240-880	Silver Spring	Landline	Level 3 Communications
240-882	Suitland	Wireless	Sprint Spectrum
240-883	Sandy Spring	Landline	Level 3 Communications
240-888	Rockville	Wireless	New Cingular Wireless
240-892	Upper Marlboro	Landline	Level 3 Communications
240-893	Silver Spring	Wireless	New Cingular Wireless
240-895	Patuxent River	Landline	Verizon
240-897	Mount Rainier	Landline	Level 3 Communications
240-898	Mount Rainier	Landline	Level 3 Communications
240-899	Chevy Chase	Wireless	Omnipoint Communications Cap Operations
240-900	Mount Rainier	Landline	Onvoy
240-901	Port Tobacco	Landline	CenturyLink Communications
240-903	Indian Head	Landline	Comcast Ip Phone
240-904	Columbia	Wireless	Verizon
240-906	Mount Rainier	Wireless	Omnipoint Communications Cap Operations
240-907	Rockville	Wireless	Verizon
240-908	Frederick	Landline	Onvoy
240-910	Frederick	Landline	Radiantiq
240-912	Montgomery Village	Landline	US Lec Of Maryland
240-913	Frederick	Landline	Onvoy
240-917	Laurel	Wireless	New Cingular Wireless
240-918	Sandy Spring	Wireless	Omnipoint Communications Cap Operations
240-920	Cumberland	Landline	Level 3 Communications
240-922	Glen Echo	Landline	Fractel
240-925	Leonardtown	Wireless	Verizon
240-929	Lanham	Landline	Cavalier East
240-938	Ashton	Wireless	Omnipoint Communications Cap Operations
240-942	Bittinger	Landline	Radiantiq
240-944	Westernport	Landline	Radiantiq
240-945	Glen Echo	Landline	Onvoy
240-949	Clinton	Landline	Cavalier East
240-956	Glen Echo	Landline	Onvoy
240-964	Cumberland	Landline	Verizon
240-965	Riverdale	Landline	Paetec Communications
240-970	Silver Spring	Landline	Onvoy
240-971	Frederick	Landline	CenturyLink Communications
240-972	Columbia	Landline	Baltimore-washington Telephone (bwt)
240-976			Baltimore-washington Telephone (bwt)
240-979	Cumberland	Landline	Level 3 Communications
240-985	Williamsport	Landline	CenturyLink Communications
240-986	Nanjemoy	Landline	XO Communications
240-988	Laurel	Wireless	Sprint Spectrum
240-993	Indian Head	Landline	XO Communications
240-994	Rockville	Wireless	Verizon
240-995	Cumberland	Landline	Onvoy
240-996	Knoxville	Landline	CenturyLink Communications
240-997	Silver Spring	Wireless	Verizon
240-998	Hancock	Landline	CenturyLink Communications

Statistics for area code 240

Prefixes Usages