443 Area Code

Area Code 443 Map

Area code 443 generally covers Baltimore, and Annapolis in the U.S. State of Maryland.

Top cities in area code 443

City	Prefixes
Baltimore, MD	34.5%
Annapolis, MD	5.1%
Columbia, MD	3.9%
Halethorpe, MD	3.8%
Towson, MD	3.2%
Salisbury, MD	2.5%
Bel Air, MD	2.5%
Westminster, MD	2.3%
Catonsville, MD	2.3%
Severna Park, MD	1.6%

Top telephone carriers in area code 443

Carrier	Prefixes
Verizon	21.9%
Sprint Spectrum	10.3%
New Cingular Wireless	8.7%
Cavalier Telephone Mid-atlantic	7.3%
XO Communications	7.1%
Global Crossing Local Services	5.7%
Level 3 Communications	5.6%
Teleport Communications America	5.2%
Omnipoint Communications Cap Operations	4.7%
Ctc Communications	3.8%

Area code 443 has 770 prefixes

Prefix	Primary City	Usage	Carrier
443-200	Baltimore	Landline	XO Communications
443-201	Westminster	Wireless	New Cingular Wireless
443-202	Baltimore	Wireless	Verizon
443-203	West River	Landline	Verizon
443-204	Pikesville	Wireless	New Cingular Wireless
443-205	Cambridge	Wireless	Sprint Spectrum
443-206	Perryville	Wireless	Verizon
443-207	Elkton	Wireless	Omnipoint Communications Enterprises
443-208	Essex	Landline	Sprint Spectrum
443-209	Havre De Grace	Landline	Cavalier Telephone
443-210	Havre De Grace	Landline	Sprint Spectrum
443-212	Sparks Glencoe	Landline	US Lec Of Maryland
443-213	Baltimore	Landline	Verizon
443-214	Annapolis	Landline	New Cingular Wireless
443-215	Chestertown	Landline	Core Communications
443-216	Dundalk	Landline	Cavalier Telephone Mid-atlantic
443-217	Annapolis	Landline	Core Communications
443-218	Reisterstown	Landline	Global Crossing Local Services
443-219	Baltimore	Landline	Level 3 Communications
443-220	Baltimore	Landline	Verizon
443-221	Annapolis	Landline	Level 3 Communications
443-222	Reisterstown	Landline	XO Communications
443-223	Annapolis	Wireless	Verizon
443-224	Baltimore	Landline	Mcimetro Access Transmission Services
443-225	Cambridge	Landline	Sprint Spectrum
443-226	Halethorpe	Wireless	Sprint Spectrum
443-227	Port Deposit	Landline	Ctc Communications
443-228	White Marsh	Landline	US Lec Of Maryland
443-229	Severna Park	Landline	Cavalier Telephone Mid-atlantic
443-230	Odenton	Landline	Ctc Communications
443-231	Baltimore	Landline	AT&T
443-233	Rhodesdale	Landline	Cavalier Telephone
443-234	Snow Hill	Landline	Cavalier Telephone
443-235	Salisbury	Wireless	Verizon
443-236	Whiteford	Landline	Core Communications
443-237	North Beach	Landline	Core Communications
443-238	Parkton	Landline	Ctc Communications
443-239	Easton	Wireless	New Cingular Wireless
443-240	Baltimore	Wireless	New Cingular Wireless
443-241	Westminster	Landline	Onvoy
443-242	Sparrows Point	Landline	Cavalier Telephone Mid-atlantic
443-243	Fallston	Wireless	Verizon
443-244	Westminster	Landline	Level 3 Communications
443-245	Elkton	Landline	Cavalier Telephone
443-246	Elkton	Landline	Core Communications
443-247	Union Bridge	Landline	Ctc Communications
443-248	Catonsville	Wireless	Verizon
443-249	Stevensville	Landline	Verizon
443-250	Baltimore	Wireless	Sprint Spectrum
443-251	Chestertown	Wireless	Local Access
443-252	Perryville	Wireless	Verizon
443-253	Baltimore	Wireless	New Cingular Wireless
443-254	Annapolis	Wireless	Omnipoint Communications Cap Operations
443-255	Baltimore	Wireless	New Cingular Wireless
443-256	Perryville	Landline	Ctc Communications
443-257	Baltimore	Wireless	Verizon
443-258	Easton	Wireless	New Cingular Wireless
443-259	Columbia	Landline	Verizon
443-260	Salisbury	Landline	Verizon
443-261	Severna Park	Landline	Mcimetro Access Transmission Services
443-262	Centreville	Landline	Verizon
443-263	Baltimore	Landline	Verizon
443-265	Fork	Landline	Cavalier Telephone Mid-atlantic
443-266	Glenwood	Landline	Global Crossing Local Services
443-267	Darlington	Landline	Teleport Communications America
443-268	Baltimore	Landline	Core Communications
443-270	Baltimore	Landline	Paetec Communications
443-271	Baltimore	Wireless	Sprint Spectrum
443-272	Baltimore	Landline	Teleport Communications America
443-273	Reisterstown	Landline	Teleport Communications America
443-274	Severn	Landline	Verizon
443-275	Baltimore	Landline	Comcast Ip Phone
443-276	Baltimore	Landline	XO Communications
443-277	Sykesville	Wireless	Sprint Spectrum
443-278	Baltimore	Landline	Vdl
443-279	Baltimore	Landline	XO Communications
443-280	Sykesville	Wireless	New Cingular Wireless
443-281	Baltimore	Landline	XO Communications
443-282	Chestertown	Wireless	Sprint Spectrum
443-283	Baltimore	Landline	Paetec Communications
443-284	Savage	Landline	XO Communications
443-285	Columbia	Landline	Verizon
443-286	Baltimore	Wireless	Verizon
443-287	Baltimore	Landline	Verizon
443-288	Baltimore	Landline	XO Communications
443-289	Westminster	Landline	Mcimetro Access Transmission Services
443-290	Parkville	Landline	Level 3 Telecom Of Maryland
443-291	Hampstead	Landline	Global Crossing Local Services
443-292	Laurel	Landline	Level 3 Communications
443-293	Westminster	Landline	Global Crossing Local Services
443-294	West River	Landline	Global Crossing Local Services
443-295	Prince Frederick	Landline	Level 3 Communications
443-296	Baltimore	Landline	Global Crossing Local Services
443-297	Halethorpe	Landline	Teleport Communications America
443-298	Easton	Wireless	New Cingular Wireless
443-299	Fallston	Landline	Global Crossing Local Services
443-300	Sykesville	Landline	Level 3 Communications
443-301	Baltimore	Wireless	New Cingular Wireless
443-302	Crofton	Landline	Global Crossing Local Services
443-303	Aberdeen	Landline	Global Crossing Local Services
443-304	Baltimore	Landline	Global Crossing Local Services
443-305	Baltimore	Landline	Global Crossing Local Services
443-306	Halethorpe	Wireless	Sprint Spectrum
443-307	Bel Air	Landline	Global Crossing Local Services
443-308	Baltimore	Landline	XO Communications
443-309	Elkton	Wireless	Sprint Spectrum
443-310	Baltimore	Wireless	New Cingular Wireless
443-312	Baltimore	Landline	Global Crossing Local Services
443-313	Fork	Landline	Global Crossing Local Services
443-314	Baltimore	Wireless	Sprint Spectrum
443-315	Baltimore	Landline	Global Crossing Local Services
443-316	Baltimore	Landline	Global Crossing Local Services
443-317	Baltimore	Landline	Global Crossing Local Services
443-318	Hunt Valley	Landline	Cavalier Telephone
443-319	Columbia	Landline	Cavalier Telephone
443-320	Baltimore	Landline	Global Crossing Local Services
443-321	Annapolis	Landline	Paetec Communications
443-322	Towson	Landline	Cavalier Telephone Mid-atlantic
443-323	Rhodesdale	Landline	Cavalier Telephone
443-324	Baltimore	Wireless	Sprint Spectrum
443-325	Ellicott City	Landline	Cavalier Telephone Mid-atlantic
443-326	Baltimore	Wireless	New Cingular Wireless
443-327	Aberdeen	Landline	Cavalier Telephone Mid-atlantic
443-328	Sykesville	Landline	Ctc Communications
443-329	Jessup	Landline	Global Crossing Local Services
443-330	Baltimore	Landline	Cavalier Telephone Mid-atlantic
443-331	Taneytown	Landline	Ctc Communications
443-332	Crofton	Landline	Cavalier Telephone Mid-atlantic
443-333	Annapolis	Wireless	New Cingular Wireless
443-334	Towson	Landline	XO Communications
443-335	Linthicum Heights	Landline	XO Communications
443-336	Annapolis	Wireless	Sprint Spectrum
443-338	Sparks Glencoe	Landline	Ctc Communications
443-339	Annapolis	Landline	Ctc Communications
443-340	Westminster	Wireless	Verizon
443-341	Baltimore	Landline	Level 3 Communications
443-342	Solomons	Landline	Ctc Communications
443-343	Millersville	Landline	Teleport Communications America
443-344	Severna Park	Landline	Core Communications
443-345	Aberdeen	Landline	Level 3 Communications
443-347	Whiteford	Landline	Ctc Communications
443-348	Baltimore	Landline	Teleport Communications America
443-349	Westminster	Landline	Core Communications
443-350	Elkton	Wireless	Verizon
443-351	Columbia	Landline	US Lec Of Maryland
443-352	Baltimore	Landline	AT&T
443-353	Hunt Valley	Landline	Verizon
443-354	Baltimore	Landline	Level 3 Communications
443-355	Baltimore	Landline	Level 3 Communications
443-356	Bel Air	Landline	Level 3 Communications
443-357	Pikesville	Landline	Verizon
443-358	Salisbury	Landline	Ymax Communications
443-359	Delmar	Wireless	Verizon
443-360	Aberdeen	Landline	Teleport Communications America
443-361	Sykesville	Landline	Core Communications
443-362	Easton	Wireless	Omnipoint Communications Cap Operations
443-363	Severn	Landline	XO Communications
443-364	Baltimore	Landline	Teleport Communications America
443-365	Salisbury	Wireless	Omnipoint Communications Cap Operations
443-366	Salisbury	Wireless	Sprint Spectrum
443-367	Columbia	Landline	Verizon
443-368	Westminster	Landline	Core Communications
443-369	Bel Air	Landline	Core Communications
443-370	Annapolis	Landline	New Cingular Wireless
443-371	Bel Air	Landline	Level 3 Communications
443-372	Edgewood	Landline	US Lec Of Maryland
443-373	Ocean City	Wireless	Sprint Spectrum
443-374	Aberdeen	Landline	Cavalier Telephone
443-375	Hampstead	Wireless	Sprint Spectrum
443-376	Baltimore	Landline	Teleport Communications America
443-377	Towson	Wireless	Verizon
443-378	Baltimore	Wireless	Sprint Spectrum
443-379	Pikesville	Landline	Comcast Ip Phone
443-380	Baltimore	Landline	Level 3 Communications
443-382	Cambridge	Landline	Core Communications
443-383	Westminster	Landline	Ctc Communications
443-384	Parkville	Landline	Cavalier Telephone Mid-atlantic
443-385	Easton	Landline	Core Communications
443-386	Baltimore	Wireless	Verizon
443-387	Pocomoke City	Landline	Core Communications
443-388	Baltimore	Wireless	Verizon
443-389	Salisbury	Landline	Core Communications
443-390	Churchville	Landline	Global Crossing Local Services
443-391	Baltimore	Landline	Global Crossing Local Services
443-392	Baltimore	Landline	AT&T
443-393	Baltimore	Landline	Global Crossing Local Services
443-394	Pikesville	Landline	Verizon
443-395	Aberdeen	Landline	Verizon
443-396	Odenton	Landline	Global Crossing Local Services
443-397	Salisbury	Wireless	Verizon
443-398	Sykesville	Wireless	Sprint Spectrum
443-399	Baltimore	Landline	Global Crossing Local Services
443-400	Baltimore	Landline	XO Communications
443-401	Baltimore	Wireless	Verizon
443-402	Edgewood	Landline	Teleport Communications America
443-403	Havre De Grace	Landline	Level 3 Communications
443-404	Solomons	Wireless	Sprint Spectrum
443-405	Baltimore	Landline	Global Crossing Local Services
443-406	Elkton	Landline	Teleport Communications America
443-407	Baltimore	Landline	XO Communications
443-408	Baltimore	Landline	XO Communications
443-409	Edgewood	Landline	Cavalier Telephone Mid-atlantic
443-410	Baltimore	Landline	CenturyLink Communications
443-412	Churchville	Landline	Teleport Communications America
443-413	Halethorpe	Wireless	Sprint Spectrum
443-414	Halethorpe	Wireless	Sprint Spectrum
443-415	Halethorpe	Wireless	Sprint Spectrum
443-416	Halethorpe	Wireless	Sprint Spectrum
443-417	Fallston	Landline	Teleport Communications America
443-418	Halethorpe	Wireless	Sprint Spectrum
443-419	Glenwood	Landline	Cavalier Telephone Mid-atlantic
443-420	Baltimore	Landline	Global Crossing Local Services
443-421	Fork	Wireless	New Cingular Wireless
443-422	Glen Burnie	Wireless	New Cingular Wireless
443-423	Baltimore	Landline	Level 3 Communications
443-424	Whiteford	Landline	Teleport Communications America
443-425	Baltimore	Landline	AT&T
443-426	Baltimore	Landline	Paetec Communications
443-427	Princess Anne	Landline	Core Communications
443-428	Hunt Valley	Landline	Core Communications
443-429	Gwynn Oak	Landline	Cavalier Telephone Mid-atlantic
443-430	Baltimore	Landline	XO Communications
443-432	Prince Frederick	Landline	Ctc Communications
443-433	Annapolis	Landline	XO Communications
443-435	Baltimore	Wireless	Sprint Spectrum
443-436	Gwynn Oak	Landline	Verizon
443-437	Pocomoke City	Landline	Teleport Communications America
443-438	Baltimore	Wireless	Verizon
443-439	Trappe	Landline	Verizon
443-440	Annapolis	Landline	Verizon
443-441	Glenwood	Landline	Teleport Communications America
443-442	Parkville	Landline	Cavalier Telephone Mid-atlantic
443-444	Baltimore	Landline	Verizon
443-445	Elkridge	Landline	Verizon
443-446	Queenstown	Landline	Mcimetro Access Transmission Services
443-447	Baltimore	Wireless	New Cingular Wireless
443-448	Denton	Landline	Comcast Ip Phone
443-449	Baltimore	Landline	Broadview Networks
443-450	Baltimore	Landline	Level 3 Communications
443-451	Baltimore	Landline	Paetec Communications
443-452	Baltimore	Landline	US Lec Of Maryland
443-453	Baltimore	Landline	Onvoy
443-454	Annapolis	Wireless	Omnipoint Communications Cap Operations
443-455	Baltimore	Landline	Verizon
443-456	Edgewood	Landline	AT&T
443-457	Baltimore	Landline	Teleport Communications America
443-458	Annapolis	Landline	XO Communications
443-459	Baltimore	Landline	Paetec Communications
443-460	Baltimore	Landline	XO Communications
443-461	Parkville	Landline	US Lec Of Maryland
443-462	Baltimore	Wireless	Verizon
443-463	Baltimore	Wireless	Sprint Spectrum
443-464	Churchville	Landline	Broadview Networks
443-465	Towson	Wireless	Verizon
443-466	Elkton	Wireless	Sprint Spectrum
443-467	Baltimore	Wireless	New Cingular Wireless
443-468	Baltimore	Wireless	Sprint Spectrum
443-469	Baltimore	Wireless	New Cingular Wireless
443-470	Towson	Landline	US Lec Of Maryland
443-471	Columbia	Landline	US Lec Of Maryland
443-472	Baltimore	Landline	Level 3 Communications
443-473	Baltimore	Wireless	Sprint Spectrum
443-474	Catonsville	Wireless	New Cingular Wireless
443-475	Baltimore	Landline	Mcimetro Access Transmission Services
443-476	Annapolis	Wireless	Verizon
443-477	Cambridge	Wireless	Verizon
443-478	Baltimore	Wireless	Verizon
443-479	Laurel	Landline	Verizon
443-480	Chestertown	Wireless	Verizon
443-481	Annapolis	Landline	US Lec Of Maryland
443-482	Annapolis	Landline	Verizon
443-483	Whiteford	Landline	Level 3 Communications
443-484	Edgewood	Landline	Level 3 Communications
443-485	North East	Landline	Level 3 Communications
443-486	Prince Frederick	Landline	Level 3 Communications
443-487	Westminster	Landline	Level 3 Communications
443-488	Baltimore	Wireless	New Cingular Wireless
443-489	Baltimore	Landline	Teleport Communications America
443-490	Edgewood	Landline	Global Crossing Local Services
443-491	Parkton	Landline	Global Crossing Local Services
443-492	Baltimore	Landline	Global Crossing Local Services
443-493	Delmar	Wireless	Verizon
443-494	Millersville	Landline	Global Crossing Local Services
443-495	Baltimore	Landline	Global Crossing Local Services
443-496	Easton	Wireless	Sprint Spectrum
443-497	Salisbury	Wireless	Sprint Spectrum
443-498	Baltimore	Landline	XO Communications
443-499	Jarrettsville	Landline	Global Crossing Local Services
443-500	Baltimore	Wireless	New Cingular Wireless
443-501	Baltimore	Landline	Global Crossing Local Services
443-502	Havre De Grace	Landline	Teleport Communications America
443-503	Baltimore	Landline	XO Communications
443-504	Fallston	Landline	Cavalier Telephone Mid-atlantic
443-505	Baltimore	Landline	Global Crossing Local Services
443-506	Baltimore	Wireless	Sprint Spectrum
443-507	Hampstead	Landline	Teleport Communications America
443-508	Hampstead	Landline	Cavalier Telephone Mid-atlantic
443-509	Baltimore	Wireless	Verizon
443-510	Annapolis	Wireless	Verizon
443-512	Edgewood	Landline	Verizon
443-513	Berlin	Wireless	New Cingular Wireless
443-514	Columbia	Landline	US Lec Of Maryland
443-515	Cambridge	Wireless	Verizon
443-516	Sykesville	Landline	Global Crossing Local Services
443-517	Baltimore	Landline	Global Crossing Local Services
443-518	Columbia	Landline	Verizon
443-519	Baltimore	Landline	Global Crossing Local Services
443-520	Catonsville	Wireless	New Cingular Wireless
443-521	Cambridge	Wireless	Verizon
443-522	Reisterstown	Landline	Paetec Communications
443-523	Salisbury	Landline	Verizon
443-524	Baltimore	Landline	XO Communications
443-525	Baltimore	Wireless	New Cingular Wireless
443-526	Havre De Grace	Landline	Ctc Communications
443-527	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-528	Bel Air	Wireless	Sprint Spectrum
443-529	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-530	Baltimore	Landline	Paetec Communications
443-531	Baltimore	Wireless	New Cingular Wireless
443-532	Prince Frederick	Wireless	Sprint Spectrum
443-533	Jarrettsville	Landline	Teleport Communications America
443-534	Annapolis	Landline	Verizon
443-535	Columbia	Landline	Verizon
443-536	Westminster	Wireless	Sprint Spectrum
443-537	Columbia	Landline	Verizon
443-538	Columbia	Wireless	Omnipoint Communications Cap Operations
443-539	Columbia	Landline	US Lec Of Maryland
443-540	Baltimore	Wireless	New Cingular Wireless
443-541	Baltimore	Landline	Paetec Communications
443-542	Columbia	Landline	Comcast Ip Phone
443-543	Halethorpe	Landline	Verizon
443-544	Pikesville	Landline	Cavalier Telephone Mid-atlantic
443-545	Columbia	Landline	Level 3 Communications
443-546	Baltimore	Landline	Verizon
443-547	Westminster	Wireless	Verizon
443-548	Baltimore	Landline	XO Communications
443-549	Dundalk	Landline	US Lec Of Maryland
443-550	North Beach	Landline	Level 3 Communications
443-551	Baltimore	Landline	Level 3 Communications
443-552	Baltimore	Landline	Verizon
443-553	Elkton	Wireless	Verizon
443-554	White Marsh	Wireless	Omnipoint Communications Cap Operations
443-556	Hunt Valley	Landline	Verizon
443-557	Baltimore	Landline	XO Communications
443-558	Aberdeen	Landline	XO Communications
443-559	Essex	Landline	Comcast Ip Phone
443-560	Baltimore	Wireless	Sprint Spectrum
443-561	Columbia	Landline	US Lec Of Maryland
443-562	Baltimore	Wireless	New Cingular Wireless
443-563	Baltimore	Wireless	Sprint Spectrum
443-564	Baltimore	Landline	Level 3 Communications
443-565	Randallstown	Landline	Cavalier Telephone Mid-atlantic
443-566	Chesapeake City	Wireless	Verizon
443-567	Bel Air	Landline	Level 3 Communications
443-568	Halethorpe	Landline	XO Communications
443-569	Annapolis	Landline	Level 3 Communications
443-570	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-571	Baltimore	Wireless	Verizon
443-572	Linthicum Heights	Landline	Verizon
443-573	Columbia	Landline	US Lec Of Maryland
443-574	Ellicott City	Landline	US Lec Of Maryland
443-575	Halethorpe	Landline	Cavalier Telephone Mid-atlantic
443-576	Baltimore	Landline	XO Communications
443-577	Columbia	Landline	US Lec Of Maryland
443-578	Baltimore	Landline	XO Communications
443-579	Essex	Landline	US Lec Of Maryland
443-580	Baltimore	Wireless	Sprint Spectrum
443-581	White Marsh	Landline	XO Communications
443-582	Churchville	Landline	Ctc Communications
443-583	Columbia	Landline	Ctc Communications
443-584	Crofton	Landline	Ctc Communications
443-585	Darlington	Landline	Ctc Communications
443-586	Dundalk	Landline	XO Communications
443-587	Edgewood	Landline	Ctc Communications
443-588	Baltimore	Landline	XO Communications
443-589	Hunt Valley	Landline	US Lec Of Maryland
443-590	Reisterstown	Landline	Global Crossing Local Services
443-591	Glen Burnie	Wireless	Verizon
443-593	Elkton	Landline	Ctc Communications
443-594	Baltimore	Landline	Global Crossing Local Services
443-595	Sparks Glencoe	Landline	Global Crossing Local Services
443-596	Essex	Landline	XO Communications
443-597	Severna Park	Landline	Global Crossing Local Services
443-598	Annapolis	Landline	Global Crossing Local Services
443-599	Baltimore	Landline	Global Crossing Local Services
443-600	Essex	Wireless	Omnipoint Communications Cap Operations
443-601	Fallston	Landline	Ctc Communications
443-602	Catonsville	Wireless	Verizon
443-603	Annapolis	Landline	Paetec Communications
443-604	Baltimore	Wireless	Verizon
443-605	Westminster	Landline	Cavalier Telephone Mid-atlantic
443-606	Fork	Landline	Ctc Communications
443-607	West River	Landline	Cavalier Telephone Mid-atlantic
443-608	Towson	Wireless	New Cingular Wireless
443-609	Sykesville	Landline	Cavalier Telephone Mid-atlantic
443-610	Baltimore	Wireless	Verizon
443-612	Catonsville	Landline	Verizon
443-613	Towson	Wireless	New Cingular Wireless
443-614	Salisbury	Wireless	Verizon
443-615	Catonsville	Wireless	Verizon
443-616	Bel Air	Landline	Cavalier Telephone Mid-atlantic
443-617	Fallston	Wireless	Verizon
443-618	Linthicum Heights	Wireless	Verizon
443-619	Bel Air	Wireless	Verizon
443-620	Baltimore	Landline	Teleport Communications America
443-621	Halethorpe	Wireless	Sprint Spectrum
443-622	Halethorpe	Wireless	Sprint Spectrum
443-623	Linthicum Heights	Wireless	Sprint Spectrum
443-624	Prince Frederick	Wireless	Verizon
443-625	Fork	Landline	Level 3 Communications
443-626	White Marsh	Landline	Cavalier Telephone Mid-atlantic
443-629	Halethorpe	Wireless	Sprint Spectrum
443-630	Baltimore	Wireless	Verizon
443-631	Catonsville	Wireless	New Cingular Wireless
443-632	Towson	Landline	US Lec Of Maryland
443-633	Baltimore	Wireless	Sprint Spectrum
443-634	Odenton	Landline	Verizon
443-635	Baltimore	Wireless	New Cingular Wireless
443-636	Catonsville	Landline	Omnipoint Communications Cap Operations
443-637	Baltimore	Landline	XO Communications
443-638	Ellicott City	Landline	Global Naps South
443-639	Hampstead	Landline	Ctc Communications
443-640	Bel Air	Landline	US Lec Of Maryland
443-641	Pikesville	Landline	Level 3 Communications
443-642	Baltimore	Wireless	Verizon
443-643	Bel Air	Landline	Verizon
443-644	Jarrettsville	Landline	Ctc Communications
443-645	Millersville	Landline	Ctc Communications
443-646	North Beach	Landline	Ctc Communications
443-647	New Windsor	Landline	Ctc Communications
443-648	Baltimore	Landline	Teleport Communications America
443-649	Sparrows Point	Landline	US Lec Of Maryland
443-650	Reisterstown	Landline	XO Communications
443-651	Baltimore	Wireless	Verizon
443-652	Towson	Landline	Omnipoint Communications Cap Operations
443-653	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-654	Jessup	Landline	Verizon
443-655	Bel Air	Wireless	New Cingular Wireless
443-656	Columbia	Landline	Cavalier Telephone Mid-atlantic
443-657	Randallstown	Landline	Level 3 Telecom Of Maryland
443-658	Gwynn Oak	Landline	Onvoy
443-659	West River	Landline	Onvoy
443-660	Baltimore	Landline	Comcast Ip Phone
443-661	Savage	Landline	Cavalier Telephone Mid-atlantic
443-662	Sparks Glencoe	Landline	Cavalier Telephone Mid-atlantic
443-663	Gwynn Oak	Landline	Verizon
443-664	Ocean City	Landline	Cavalier Telephone
443-666	Chestertown	Wireless	Level 3 Communications
443-668	Catonsville	Wireless	New Cingular Wireless
443-669	Delmar	Landline	Cavalier Telephone
443-670	Catonsville	Landline	Cavalier Telephone Mid-atlantic
443-671	New Windsor	Landline	Teleport Communications America
443-672	Parkton	Landline	Teleport Communications America
443-673	Linthicum Heights	Landline	Cavalier Telephone Mid-atlantic
443-674	Perryville	Landline	Teleport Communications America
443-675	Randallstown	Landline	Cavalier Telephone
443-676	Baltimore	Wireless	New Cingular Wireless
443-677	Baltimore	Wireless	Sprint Spectrum
443-678	Parkville	Landline	Verizon
443-679	Baltimore	Landline	Teleport Communications America
443-680	Baltimore	Wireless	Sprint Spectrum
443-681	Baltimore	Wireless	Verizon
443-682	Baltimore	Landline	Verizon
443-683	Baltimore	Wireless	Verizon
443-684	Prince Frederick	Wireless	Verizon
443-685	Severn	Landline	Cavalier Telephone
443-686	Fallston	Wireless	Verizon
443-687	Baltimore	Wireless	Verizon
443-688	Severn	Landline	Cavalier Telephone Mid-atlantic
443-689	Hunt Valley	Landline	Cavalier Telephone Mid-atlantic
443-690	Baltimore	Wireless	Verizon
443-691	Baltimore	Wireless	New Cingular Wireless
443-692	Baltimore	Landline	XO Communications
443-693	Perryville	Landline	Teleport Communications America
443-694	Severna Park	Wireless	Sprint Spectrum
443-695	Baltimore	Wireless	Verizon
443-696	Dundalk	Landline	Cavalier Telephone Mid-atlantic
443-697	Catonsville	Landline	Global Naps South
443-698	Odenton	Landline	Teleport Communications America
443-699	Annapolis	Wireless	Verizon
443-701	Halethorpe	Landline	XO Communications
443-702	Severna Park	Landline	Cavalier Telephone Mid-atlantic
443-703	Baltimore	Landline	XO Communications
443-704	Odenton	Landline	Cavalier Telephone Mid-atlantic
443-705	Hunt Valley	Landline	XO Communications
443-706	Crisfield	Landline	Cavalier Telephone
443-707	Havre De Grace	Landline	Local Access
443-708	Baltimore	Landline	Level 3 Telecom Of Maryland
443-709	Halethorpe	Landline	Cavalier Telephone Mid-atlantic
443-710	Baltimore	Landline	XO Communications
443-712	Reisterstown	Landline	Cavalier Telephone Mid-atlantic
443-713	Columbia	Wireless	Peerless Network Of Maryland
443-714	Columbia	Landline	Sprint Spectrum
443-715	Perryville	Landline	Cavalier Telephone
443-716	Annapolis	Landline	Cavalier Telephone Mid-atlantic
443-717	Baltimore	Wireless	Verizon
443-718	Columbia	Landline	US Lec Of Maryland
443-719	Jarrettsville	Landline	Cavalier Telephone Mid-atlantic
443-720	North East	Landline	XO Communications
443-721	Baltimore	Wireless	Verizon
443-722	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-723	Linthicum Heights	Landline	Sprint Spectrum
443-724	Easton	Landline	Cavalier Telephone
443-725	Baltimore	Landline	Paetec Communications
443-726	Towson	Landline	Sprint Spectrum
443-727	Bishopville	Landline	Cavalier Telephone
443-728	Berlin	Landline	Cavalier Telephone
443-729	Baltimore	Landline	Paetec Communications
443-730	Baltimore	Landline	Paetec Communications
443-731	Port Deposit	Landline	Teleport Communications America
443-732	Westminster	Landline	Teleport Communications America
443-733	Baltimore	Landline	AT&T
443-734	Severn	Landline	Verizon
443-735	Salisbury	Wireless	New Cingular Wireless
443-736	Salisbury	Wireless	New Cingular Wireless
443-737	Baltimore	Landline	Paetec Communications
443-738	Baltimore	Landline	Paetec Communications
443-739	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-740	Baltimore	Landline	Level 3 Communications
443-741	Columbia	Landline	Mcimetro Access Transmission Services
443-742	Baltimore	Wireless	New Cingular Wireless
443-743	Baltimore	Wireless	Verizon
443-744	Reisterstown	Wireless	Sprint Spectrum
443-745	Columbia	Wireless	Verizon
443-746	Easton	Landline	Level 3 Communications
443-747	Port Deposit	Landline	Core Communications
443-748	Millersville	Landline	Cavalier Telephone Mid-atlantic
443-749	Baltimore	Landline	Cavalier Telephone Mid-atlantic
443-750	Baltimore	Wireless	Verizon
443-751	Gwynn Oak	Landline	Cavalier Telephone Mid-atlantic
443-752	Bel Air	Landline	Verizon
443-753	Jessup	Landline	Allegiance Telecom Of Maryland
443-754	Salisbury	Wireless	Verizon
443-755	Elkridge	Landline	Verizon
443-756	Baltimore	Wireless	New Cingular Wireless
443-757	Elkridge	Landline	Cavalier Telephone Mid-atlantic
443-758	Annapolis	Landline	AT&T
443-759	Baltimore	Wireless	Verizon
443-760	Aberdeen	Landline	AT&T
443-761	Towson	Wireless	Omnipoint Communications Cap Operations
443-762	Halethorpe	Wireless	Sprint Spectrum
443-763	Baltimore	Landline	Omnipoint Communications Cap Operations
443-764	Glen Burnie	Wireless	Omnipoint Communications Cap Operations
443-765	Catonsville	Wireless	New Cingular Wireless
443-766	Columbia	Landline	US Lec Of Maryland
443-767	Reisterstown	Landline	Cavalier Telephone Mid-atlantic
443-768	Halethorpe	Wireless	Sprint Spectrum
443-769	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-770	Severna Park	Landline	Verizon
443-771	Prince Frederick	Wireless	Verizon
443-772	Essex	Landline	Cavalier Telephone Mid-atlantic
443-773	Baltimore	Landline	XO Communications
443-774	Baltimore	Landline	New Cingular Wireless
443-775	Baltimore	Landline	Verizon
443-776	Baltimore	Landline	Bandwidth.com
443-777	Essex	Landline	Verizon
443-778	Laurel	Landline	Verizon
443-779	Aberdeen	Landline	XO Communications
443-780	Columbia	Landline	US Lec Of Maryland
443-781	Severna Park	Landline	XO Communications
443-782	Annapolis	Landline	XO Communications
443-783	Salisbury	Wireless	Verizon
443-784	Baltimore	Landline	Teleport Communications America
443-785	Halethorpe	Landline	Onvoy
443-786	Easton	Wireless	Verizon
443-787	Bel Air	Landline	Ctc Communications
443-788	Aberdeen	Landline	XO Communications
443-789	Westminster	Wireless	New Cingular Wireless
443-790	Linthicum Heights	Wireless	Sprint Spectrum
443-791	Towson	Wireless	New Cingular Wireless
443-792	Linthicum Heights	Landline	Verizon
443-793	Baltimore	Landline	XO Communications
443-794	Baltimore	Wireless	New Cingular Wireless
443-795	Baltimore	Landline	XO Communications
443-796	Baltimore	Landline	XO Communications
443-797	Baltimore	Landline	XO Communications
443-798	Towson	Landline	Level 3 Telecom Of Maryland
443-799	Baltimore	Wireless	New Cingular Wireless
443-800	Baltimore	Wireless	Sprint Spectrum
443-801	Halethorpe	Wireless	Sprint Spectrum
443-802	Halethorpe	Wireless	Sprint Spectrum
443-803	Halethorpe	Wireless	Sprint Spectrum
443-804	Halethorpe	Wireless	Sprint Spectrum
443-805	Glen Burnie	Wireless	Omnipoint Communications Cap Operations
443-806	Baltimore	Wireless	Sprint Spectrum
443-807	Fallston	Wireless	Sprint Spectrum
443-808	Annapolis	Landline	Bandwidth.com
443-809	Baltimore	Landline	Level 3 Communications
443-810	Baltimore	Wireless	Sprint Spectrum
443-812	Columbia	Wireless	Verizon
443-813	Baltimore	Wireless	Verizon
443-814	Baltimore	Wireless	Verizon
443-815	Baltimore	Landline	XO Communications
443-816	Severna Park	Landline	XO Communications
443-817	Baltimore	Landline	XO Communications
443-818	Severna Park	Landline	Level 3 Communications
443-819	Bel Air	Wireless	Omnipoint Communications Cap Operations
443-820	Baltimore	Landline	Paetec Communications
443-821	Westminster	Wireless	Sprint Spectrum
443-822	Annapolis	Wireless	Sprint Spectrum
443-823	Towson	Wireless	Verizon
443-824	Towson	Wireless	Omnipoint Communications Cap Operations
443-825	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-826	Baltimore	Wireless	Verizon
443-827	Baltimore	Wireless	Verizon
443-828	Ellicott City	Landline	Cavalier Telephone Mid-atlantic
443-829	Baltimore	Wireless	Sprint Spectrum
443-830	Catonsville	Landline	Cavalier Telephone Mid-atlantic
443-831	Baltimore	Wireless	New Cingular Wireless
443-832	Baltimore	Landline	Level 3 Communications
443-833	Halethorpe	Landline	US Lec Of Maryland
443-835	Baltimore	Wireless	Verizon
443-836	Baltimore	Landline	XO Communications
443-837	Annapolis	Landline	US Lec Of Maryland
443-838	Baltimore	Wireless	New Cingular Wireless
443-839	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-840	Catonsville	Wireless	New Cingular Wireless
443-841	Baltimore	Landline	Verizon
443-842	Baltimore	Wireless	Verizon
443-843	Havre De Grace	Landline	Verizon
443-844	Baltimore	Wireless	Verizon
443-845	Baltimore	Wireless	Verizon
443-846	Towson	Landline	New Cingular Wireless
443-847	Towson	Wireless	Verizon
443-848	Halethorpe	Landline	Sprint Spectrum
443-849	Towson	Landline	Verizon
443-850	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-851	Catonsville	Wireless	Omnipoint Communications Cap Operations
443-852	Annapolis	Wireless	New Cingular Wireless
443-853	Baltimore	Wireless	Verizon
443-854	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-855	Havre De Grace	Landline	Lightwave Communications
443-856	Ocean City	Landline	Core Communications
443-857	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-858	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-859	Salisbury	Wireless	Omnipoint Communications Cap Operations
443-860	Catonsville	Wireless	New Cingular Wireless
443-861	Aberdeen	Landline	Verizon
443-862	Towson	Wireless	Verizon
443-863	Baltimore	Wireless	Verizon
443-864	Columbia	Wireless	Sprint Spectrum
443-865	Baltimore	Wireless	Sprint Spectrum
443-866	Bel Air	Wireless	Sprint Spectrum
443-867	Linthicum Heights	Landline	Paetec Communications
443-868	Baltimore	Landline	Verizon
443-869	Baltimore	Wireless	Verizon
443-870	Pikesville	Landline	Level 3 Telecom Of Maryland
443-871	Annapolis	Wireless	Sprint Spectrum
443-872	Halethorpe	Landline	Cavalier Telephone Mid-atlantic
443-873	Pikesville	Landline	Onvoy
443-874	Baltimore	Landline	Cavalier Telephone Mid-atlantic
443-875	Annapolis	Landline	New Cingular Wireless
443-876	Bel Air	Landline	Sprint Spectrum
443-877	Perryville	Landline	Level 3 Communications
443-878	Halethorpe	Landline	Verizon
443-879	Halethorpe	Landline	Verizon
443-880	Salisbury	Landline	AT&T
443-881	Reisterstown	Wireless	T-Mobile
443-882	Baltimore	Wireless	Sprint Spectrum
443-883	Baltimore	Landline	AT&T
443-884	Baltimore	Landline	Cavalier Telephone Mid-atlantic
443-885	Baltimore	Landline	Verizon
443-886	Baltimore	Landline	AT&T
443-887	Harmans	Landline	Cavalier Telephone Mid-atlantic
443-888	Princess Anne	Landline	Cavalier Telephone
443-889	Linthicum Heights	Wireless	Omnipoint Communications Cap Operations
443-890	Baltimore	Wireless	Verizon
443-891	Baltimore	Landline	XO Communications
443-892	New Windsor	Landline	Bandwidth.com
443-893	Baltimore	Landline	XO Communications
443-894	Baltimore	Wireless	Sprint Spectrum
443-895	Towson	Wireless	Verizon
443-896	Baltimore	Landline	AT&T
443-897	Baltimore	Wireless	New Cingular Wireless
443-898	Pikesville	Landline	Level 3 Communications
443-899	Harmans	Landline	Level 3 Communications
443-900	Towson	Wireless	Verizon
443-901	Towson	Landline	Cavalier Telephone Mid-atlantic
443-902	Baltimore	Wireless	Verizon
443-903	Bel Air	Wireless	Verizon
443-904	Baltimore	Wireless	Verizon
443-905	Annapolis	Wireless	Sprint Spectrum
443-906	Severna Park	Landline	Peerless Network Of Maryland
443-907	Elkton	Wireless	Verizon
443-908	Baltimore	Wireless	Verizon
443-909	Baltimore	Wireless	Verizon
443-910	Bel Air	Wireless	New Cingular Wireless
443-912	Towson	Landline	Core Communications
443-913	Baltimore	Wireless	Sprint Spectrum
443-914	Reisterstown	Landline	Teleport Communications America
443-915	Baltimore	Wireless	Verizon
443-916	Baltimore	Wireless	Sprint Spectrum
443-917	Columbia	Wireless	Onvoy
443-918	Taneytown	Landline	Teleport Communications America
443-919	Baltimore	Landline	Cavalier Telephone Mid-atlantic
443-920	Sykesville	Landline	Teleport Communications America
443-921	Baltimore	Landline	Paetec Communications
443-922	Edgewood	Landline	Atx Telecommunications Services
443-923	Baltimore	Landline	Cavalier Telephone Mid-atlantic
443-924	Annapolis	Wireless	Verizon
443-925	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-926	Annapolis	Landline	Level 3 Communications
443-927	Baltimore	Landline	Broadwing Communications
443-928	Baltimore	Wireless	Verizon
443-929	Pikesville	Wireless	Omnipoint Communications Cap Operations
443-930	Baltimore	Wireless	Verizon
443-931	Baltimore	Landline	Mcimetro Access Transmission Services
443-932	Baltimore	Wireless	Sprint Spectrum
443-933	Hunt Valley	Landline	Teleport Communications America
443-934	Baltimore	Wireless	Verizon
443-935	Towson	Wireless	New Cingular Wireless
443-936	Baltimore	Landline	New Cingular Wireless
443-937	Union Bridge	Landline	Teleport Communications America
443-938	Baltimore	Wireless	Verizon
443-939	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-940	Pikesville	Landline	Cavalier Telephone Mid-atlantic
443-941	North East	Wireless	New Cingular Wireless
443-942	Severna Park	Landline	Teleport Communications America
443-943	Baltimore	Landline	Teleport Communications America
443-944	Salisbury	Landline	Comcast Ip Phone
443-945	Elkton	Wireless	New Cingular Wireless
443-947	Perryville	Landline	Ctc Communications
443-948	Baltimore	Wireless	Sprint Spectrum
443-949	Annapolis	Landline	Comcast Ip Phone
443-951	Annapolis	Landline	Global Crossing Local Services
443-952	Westminster	Wireless	Verizon
443-953	Salisbury	Wireless	Verizon
443-954	Baltimore	Landline	Paetec Communications
443-955	Baltimore	Wireless	Verizon
443-956	Baltimore	Wireless	New Cingular Wireless
443-957	Baltimore	Landline	AT&T
443-960	Glen Burnie	Wireless	Verizon
443-961	Baltimore	Landline	Intrado Communications
443-962	Glen Burnie	Wireless	Verizon
443-963	Baltimore	Wireless	Bandwidth.com
443-964	North Beach	Landline	Level 3 Communications
443-965	Baltimore	Wireless	Sprint Spectrum
443-966	Fallston	Wireless	Verizon
443-967	Perryville	Landline	Verizon
443-968	Prince Frederick	Wireless	New Cingular Wireless
443-969	Essex	Landline	Cavalier Telephone Mid-atlantic
443-970	Baltimore	Wireless	Verizon
443-971	Taneytown	Landline	Bandwidth.com
443-972	Cambridge	Wireless	US Lec Of Maryland
443-973	Halethorpe	Landline	XO Communications
443-974	Westminster	Landline	Teleport Communications America
443-975	Prince Frederick	Wireless	New Cingular Wireless
443-976	Anne Arundel		Baltimore-washington Telephone (bwt)
443-977	Baltimore	Wireless	Verizon
443-978	Salisbury	Wireless	Verizon
443-979	Columbia	Wireless	Verizon
443-980	Catonsville	Wireless	New Cingular Wireless
443-981	Fallston	Wireless	Verizon
443-982	Baltimore	Landline	Ymax Communications
443-983	Baltimore	Wireless	Omnipoint Communications Cap Operations
443-984	Baltimore	Landline	Verizon
443-985	Randallstown	Wireless	Omnipoint Communications Cap Operations
443-986	Baltimore	Wireless	Verizon
443-987	Bel Air	Landline	AT&T
443-988	Centreville	Landline	Level 3 Communications
443-989	Linthicum Heights	Landline	Cavalier Telephone Mid-atlantic
443-990	Baltimore	Landline	Bandwidth.com
443-991	Towson	Wireless	Verizon
443-992	Baltimore	Landline	Level 3 Communications
443-993	North East	Wireless	T-Mobile
443-994	Annapolis	Wireless	New Cingular Wireless
443-995	Annapolis	Wireless	New Cingular Wireless
443-996	Catonsville	Wireless	New Cingular Wireless
443-997	Baltimore	Landline	Verizon
443-998	Parkville	Landline	Verizon

Statistics for area code 443

Prefixes Usages