443

Baltimore, Maryland

Maryland · Eastern (UTC-5) · — · 12 cities

State
Maryland
Major City
Baltimore
Time Zone
Eastern (UTC-5)
Current Local Time
—
Cities Served
12

Cities Served by Area Code 443 (12 cities)

Annapolis+2 codesBaltimore+2 codesBel Air+2 codesCatonsville+2 codesColumbia+2 codesDundalk+2 codesEllicott City+2 codesGlen Burnie+2 codesHavre de Grace+2 codesPasadena+2 codesSeverna Park+2 codesTowson+2 codes
Additional Details
Established
1997
Type
Overlay
Active Prefixes
800
Wireless Lines
34%

About Area Code 443

Area code 443 was introduced in 1997 as an overlay code, sharing the same geographic region as an existing area code to meet growing demand for phone numbers in the Baltimore area. The area is in the Eastern time zone. It covers 12 cities and communities including Annapolis, Baltimore, Bel Air, Catonsville, Columbia and 7 more.

Phone Number Prefixes in Area Code 443

800 active NXX prefixes — 34% wireless, 66% landline. Each prefix (NXX) represents up to 10,000 phone numbers.

Paetec Itel 153 (19%)Verizon Wireless 121 (15%)Omnipoint Communications Cap Operations 94 (12%)Lumen/Level 3 74 (9%)AT&T Mobility 71 (9%)
PrefixCarrierTypeRate Center
443-200MCI/VerizonWirelessWoodlawn
443-201AT&T MobilityWirelessWestminstr
443-202Verizon WirelessWirelessBaltimore
443-203Verizon MarylandLandlineWest River
443-204AT&T MobilityWirelessPikesville
443-205Verizon WirelessWirelessCambridge
443-206Verizon WirelessWirelessPerryville
443-207Omnipoint Communications Enterprises, LpLandlineElkton
443-208Omnipoint Communications Cap OperationsLandlineBaltimore
443-209Paetec ItelLandlineHavregrace
443-210Omnipoint Communications Cap OperationsLandlineSalisbury
443-211Multiple Ocn ListingLandlineXxxxxxxxxx
443-212Paetec ItelLandlineSparksglnc
443-213Verizon MarylandLandlinePikesville
443-214AT&T MobilityWirelessAnnapolis
443-215Core CommunicationsLandlineChestertn
443-216Paetec ItelLandlineDundalk
443-217Core CommunicationsLandlineAnnapolis
443-218Lumen/Level 3LandlineWorthingtn
443-219Lumen/Level 3LandlineParkville
443-220Verizon MarylandLandlineBaltimore
443-221Lumen/Level 3LandlineAnnapolis
443-222OnvoyLandlineWorthingtn
443-223Verizon WirelessWirelessAnnapolis
443-224MCI/VerizonWirelessBaltimore
443-225Metro by T-MobileWirelessCambridge
443-226Omnipoint Communications Cap OperationsLandlineBaltimore
443-227Paetec ItelLandlinePt Deposit
443-228Paetec ItelLandlineChase
443-229Paetec ItelLandlineSeverna Pk
443-230Paetec ItelLandlineOdenton
443-231Teleport Communications AmericaLandlineEssex
443-232Core CommunicationsLandlineWillards
443-233Paetec ItelLandlineVienna
443-234Paetec ItelLandlineSnow Hill
443-235Verizon WirelessWirelessSalisbury
443-236Core CommunicationsLandlineCardiff
443-237Core CommunicationsLandlineNorthbeach
443-238Paetec ItelLandlineParkton
443-239AT&T MobilityWirelessEaston
443-240AT&T MobilityWirelessBaltimore
443-241OnvoyLandlineWestminstr
443-242Paetec ItelLandlineSparrowspt
443-243Verizon WirelessWirelessFallston
443-244Lumen/Level 3LandlineWestminstr
443-245Paetec ItelLandlineElkton
443-246Core CommunicationsLandlineElkton
443-247Paetec ItelLandlineUnion Bdg
443-248Verizon WirelessWirelessBaltimore
443-249Verizon MarylandLandlineStevensvl
443-250Omnipoint Communications Cap OperationsLandlineBaltimore
443-251OnvoyLandlineCatonsvl
443-252Verizon WirelessWirelessPerryville
443-253AT&T MobilityWirelessBaltimore
443-254Omnipoint Communications Cap OperationsLandlineAnnapolis
443-255AT&T MobilityWirelessBaltimore
443-256Paetec ItelLandlineNorth East
443-257Verizon WirelessWirelessBaltimore
443-258AT&T MobilityWirelessEaston
443-259Verizon MarylandLandlineColumbia
443-260Verizon MarylandLandlineSalisbury
443-261MCI/VerizonWirelessSeverna Pk
443-262Verizon MarylandLandlineCentrevl
443-263Verizon MarylandLandlineBaltimore
443-264Core CommunicationsLandlinePikesville
443-265Paetec ItelLandlineFork
443-266Bandwidth.comLandlineGlenwood
443-267Teleport Communications AmericaLandlineDarlington
443-268Core CommunicationsLandlineBaltimore
443-269Core CommunicationsLandlineTowson
443-270Paetec ItelLandlineGlenburnie
443-271Omnipoint Communications Cap OperationsLandlineBaltimore
443-272Teleport Communications AmericaLandlineRandallstn
443-273Teleport Communications AmericaLandlineReisterstn
443-274Verizon MarylandLandlineSevern
443-275ComcastLandlineTowson
443-276MCI/VerizonWirelessColumbia
443-277Metro by T-MobileWirelessSykesville
443-278VdlLandlineBaltimore
443-279MCI/VerizonWirelessTowson
443-280AT&T MobilityWirelessSykesville
443-281MCI/VerizonWirelessCockeysvl
443-282Metro by T-MobileWirelessChestertn
443-283Paetec ItelLandlineColumbia
443-284Core CommunicationsLandlineWaterlo238
443-285Verizon MarylandLandlineColumbia
443-286Verizon WirelessWirelessBaltimore
443-287Verizon MarylandLandlineBaltimore
443-288MCI/VerizonWirelessEllicottcy
443-289MCI/VerizonWirelessWestminstr
443-290Lumen/Level 3LandlineParkville
443-291Lumen/Level 3LandlineHampstead
443-292Lumen/Level 3LandlineCrofton
443-293Verizon WirelessWirelessWestminstr
443-294Bandwidth.comLandlineWest River
443-295Lumen/Level 3LandlinePrincefrck
443-296Lumen/Level 3LandlineWaterlo238
443-297Teleport Communications AmericaLandlineArbutus
443-298AT&T MobilityWirelessEaston
443-299Verizon WirelessWirelessFallston
443-300Lumen/Level 3LandlineSykesville
443-301AT&T MobilityWirelessBaltimore
443-302Lumen/Level 3LandlineCrofton
443-303Lumen/Level 3LandlineAberdeen
443-304Bandwidth.comLandlineArbutus
443-305Lumen/Level 3LandlineArgrgbsnis
443-306Metro by T-MobileWirelessSeverna Pk
443-307Lumen/Level 3LandlineBel Air
443-308MCI/VerizonWirelessSevern
443-309Metro by T-MobileWirelessElkton
443-310AT&T MobilityWirelessBaltimore
443-311Multiple Ocn ListingLandlineXxxxxxxxxx
443-312Lumen/Level 3LandlineBrynpklncm
443-313Lumen/Level 3LandlineFork
443-314Omnipoint Communications Cap OperationsLandlineBaltimore
443-315AT&T MobilityWirelessCatonsvl
443-316Lumen/Level 3LandlineWoodlawn
443-317Bandwidth.comLandlineChase
443-318Paetec ItelLandlineCockeysvl
443-319Paetec ItelLandlineColumbia
443-320Lumen/Level 3LandlineBaltimore
443-321Paetec ItelLandlineAnnapolis
443-322Paetec ItelLandlineTowson
443-323Paetec ItelLandlineSharptown
443-324Omnipoint Communications Cap OperationsLandlineBaltimore
443-325Paetec ItelLandlineEllicottcy
443-326AT&T MobilityWirelessBaltimore
443-327Paetec ItelLandlineAberdeen
443-328Paetec ItelLandlineSykesville
443-329Lumen/Level 3LandlineWaterlo236
443-330Paetec ItelLandlineCockeysvl
443-331Paetec ItelLandlineTaneytown
443-332Paetec ItelLandlineCrofton
443-333AT&T MobilityWirelessAnnapolis
443-334MCI/VerizonWirelessPikesville
443-335Metro by T-MobileWirelessBrynpklncm
443-336Omnipoint Communications Cap OperationsLandlineAnnapolis
443-337Core CommunicationsLandlineSparrowspt
443-338Paetec ItelLandlineSparksglnc
443-339Paetec ItelLandlineSherwd For
443-340Verizon WirelessWirelessWestminstr
443-341Lumen/Level 3LandlineCatonsvl
443-342Paetec ItelLandlineSolomons
443-343Teleport Communications AmericaLandlineMillersvl
443-344Core CommunicationsLandlineSeverna Pk
443-345Lumen/Level 3LandlineAberdeen
443-346Core CommunicationsLandlineSeverna Pk
443-347Paetec ItelLandlineCardiff
443-348Teleport Communications AmericaLandlineWoodlawn
443-349Core CommunicationsLandlineSilver Run
443-350Verizon WirelessWirelessElkton
443-351Paetec ItelLandlineOdenton
443-352Lumen/Level 3LandlinePikesville
443-353Verizon MarylandLandlineCockeysvl
443-354Lumen/Level 3LandlineGlenburnie
443-355Lumen/Level 3LandlineEllicottcy
443-356Lumen/Level 3LandlineBel Air
443-357Verizon MarylandLandlinePikesville
443-358Ymax CommunicationsLandlineSalisbury
443-359Verizon WirelessWirelessDelmar
443-360Teleport Communications AmericaLandlineAberdeen
443-361Core CommunicationsLandlineSykesville
443-362Omnipoint Communications Cap OperationsLandlineEaston
443-363Core CommunicationsLandlineSevern
443-364Teleport Communications AmericaLandlineEllicottcy
443-365Omnipoint Communications Cap OperationsLandlineSalisbury
443-366Metro by T-MobileWirelessSalisbury
443-367Verizon MarylandLandlineColumbia
443-368Core CommunicationsLandlineWestminstr
443-369Core CommunicationsLandlineBel Air
443-370AT&T MobilityWirelessAnnapolis
443-371Lumen/Level 3LandlineBel Air
443-372Paetec ItelLandlineEdgewood
443-373Metro by T-MobileWirelessOcean City
443-374Paetec ItelLandlineAberdeen
443-375Metro by T-MobileWirelessHampstead
443-376Teleport Communications AmericaLandlineDundalk
443-377Verizon WirelessWirelessTowson
443-378Omnipoint Communications Cap OperationsLandlineBaltimore
443-379ComcastLandlinePikesville
443-380Lumen/Level 3LandlineWoodlawn
443-381AT&T MobilityWirelessReisterstn
443-382Core CommunicationsLandlineCambridge
443-383Paetec ItelLandlineSilver Run
443-384Paetec ItelLandlineParkville
443-385Core CommunicationsLandlineEaston
443-386Verizon WirelessWirelessBaltimore
443-387Core CommunicationsLandlinePocomoke
443-388Verizon WirelessWirelessBaltimore
443-389Core CommunicationsLandlineSalisbury
443-390Bandwidth.comLandlineChurchvl
443-391Lumen/Level 3LandlineCockeysvl
443-392Teleport Communications AmericaLandlineBaltimore
443-393Lumen/Level 3LandlineColumbia
443-394Verizon MarylandLandlinePikesville
443-395Verizon MarylandLandlineAberdeen
443-396Lumen/Level 3LandlineOdenton
443-397Verizon WirelessWirelessSalisbury
443-398Metro by T-MobileWirelessSykesville
443-399OnvoyLandlineDundalk
443-400MCI/VerizonWirelessBrynpklncm
443-401Verizon WirelessWirelessBaltimore
443-402Teleport Communications AmericaLandlineEdgewood
443-403Lumen/Level 3LandlineAberdeen
443-404Metro by T-MobileWirelessSolomons
443-405ComcastLandlineRandallstn
443-406Teleport Communications AmericaLandlineElkton
443-407MCI/VerizonWirelessDundalk
443-408MCI/VerizonWirelessSparrowspt
443-409Paetec ItelLandlineEdgewood
443-410CenturyLinkLandlineGlenburnie
443-411Multiple Ocn ListingLandlineXxxxxxxxxx
443-412Teleport Communications AmericaLandlineChurchvl
443-413Omnipoint Communications Cap OperationsLandlineBaltimore
443-414Omnipoint Communications Cap OperationsLandlineBaltimore
443-415Omnipoint Communications Cap OperationsLandlineBaltimore
443-416Omnipoint Communications Cap OperationsLandlineBaltimore
443-417Teleport Communications AmericaLandlineFallston
443-418Omnipoint Communications Cap OperationsLandlineBaltimore
443-419Paetec ItelLandlineGlenwood
443-420Bandwidth.comLandlineEllicottcy
443-421AT&T MobilityWirelessFork
443-422AT&T MobilityWirelessGlenburnie
443-423Lumen/Level 3LandlineBaltimore
443-424Teleport Communications AmericaLandlineCardiff
443-425Teleport Communications AmericaLandlineParkville
443-426Paetec ItelLandlineRandallstn
443-427Core CommunicationsLandlinePrinceanne
443-428Core CommunicationsLandlineCockeysvl
443-429Paetec ItelLandlineWoodlawn
443-430MCI/VerizonWirelessColumbia
443-431Core CommunicationsLandlineRandallstn
443-432Paetec ItelLandlinePrincefrck
443-433MCI/VerizonWirelessAnnapolis
443-434TelnyxLandlineFederalsbg
443-435Omnipoint Communications Cap OperationsLandlineBaltimore
443-436Verizon MarylandLandlineWoodlawn
443-437Teleport Communications AmericaLandlinePocomoke
443-438Verizon WirelessWirelessBaltimore
443-439Verizon WirelessWirelessTrappe
443-440MCI/VerizonWirelessAnnapolis
443-441Teleport Communications AmericaLandlineGlenwood
443-442Paetec ItelLandlineParkville
443-443CommioLandlineArbutus
443-444Verizon MarylandLandlineBaltimore
443-445Verizon MarylandLandlineElkridge
443-446MCI/VerizonWirelessQueenstown
443-447AT&T MobilityWirelessBaltimore
443-448ComcastLandlineDenton
443-449Paetec ItelLandlineBaltimore
443-450Lumen/Level 3LandlinePikesville
443-451Paetec ItelLandlineBaltimore
443-452Paetec ItelLandlineBaltimore
443-453OnvoyLandlineBaltimore
443-454Omnipoint Communications Cap OperationsLandlineAnnapolis
443-455Verizon MarylandLandlineBaltimore
443-456ComcastLandlineEdgewood
443-457Teleport Communications AmericaLandlineBrynpklncm
443-458MCI/VerizonWirelessAnnapolis
443-459Paetec ItelLandlineElkridge
443-460MCI/VerizonWirelessEssex
443-461Paetec ItelLandlineParkville
443-462Verizon WirelessWirelessBaltimore
443-463Omnipoint Communications Cap OperationsLandlineBaltimore
443-464Paetec ItelLandlineChurchvl
443-465Verizon WirelessWirelessTowson
443-466Metro by T-MobileWirelessElkton
443-467AT&T MobilityWirelessBaltimore
443-468Omnipoint Communications Cap OperationsLandlineBaltimore
443-469AT&T MobilityWirelessBaltimore
443-470Paetec ItelLandlineTowson
443-471Paetec ItelLandlinePikesville
443-472Lumen/Level 3LandlineColumbia
443-473Omnipoint Communications Cap OperationsLandlineBaltimore
443-474AT&T MobilityWirelessCatonsvl
443-475MCI/VerizonWirelessBaltimore
443-476Verizon MarylandLandlineAnnapolis
443-477Verizon WirelessWirelessCambridge
443-478Verizon WirelessWirelessBaltimore
443-479Verizon MarylandLandlineWaterlo236
443-480Verizon WirelessWirelessChestertn
443-481Paetec ItelLandlineAnnapolis
443-482Verizon MarylandLandlineAnnapolis
443-483Lumen/Level 3LandlineCardiff
443-484Lumen/Level 3LandlineEdgewood
443-485Lumen/Level 3LandlineElkton
443-486Lumen/Level 3LandlinePrincefrck
443-487Lumen/Level 3LandlineWestminstr
443-488AT&T MobilityWirelessBaltimore
443-489Teleport Communications AmericaLandlineChase
443-490Bandwidth.comLandlineEdgewood
443-491OnvoyLandlineParkton
443-492Lumen/Level 3LandlineElkridge
443-493Verizon WirelessWirelessDelmar
443-494Bandwidth.comLandlineMillersvl
443-495Bandwidth.comLandlineParkville
443-496Metro by T-MobileWirelessEaston
443-497Metro by T-MobileWirelessSalisbury
443-498MCI/VerizonWirelessCatonsvl
443-499Bandwidth.comLandlineJarrettsvl
443-500AT&T MobilityWirelessBaltimore
443-501Lumen/Level 3LandlinePikesville
443-502Teleport Communications AmericaLandlineHavregrace
443-503MCI/VerizonWirelessDundalk
443-504Paetec ItelLandlineFallston
443-505Lumen/Level 3LandlineEssex
443-506Omnipoint Communications Cap OperationsLandlineBaltimore
443-507Teleport Communications AmericaLandlineHampstead
443-508Paetec ItelLandlineHampstead
443-509Verizon WirelessWirelessBaltimore
443-510Verizon WirelessWirelessAnnapolis
443-511Multiple Ocn ListingLandlineXxxxxxxxxx
443-512Verizon MarylandLandlineEdgewood
443-513AT&T MobilityWirelessBerlin
443-514Paetec ItelLandlineCatonsvl
443-515Verizon WirelessWirelessCambridge
443-516OnvoyLandlineSykesville
443-517Lumen/Level 3LandlineGlenburnie
443-518Verizon MarylandLandlineColumbia
443-519Lumen/Level 3LandlineTowson
443-520AT&T MobilityWirelessCatonsvl
443-521Verizon WirelessWirelessCambridge
443-522Paetec ItelLandlineReisterstn
443-523Verizon MarylandLandlineSalisbury
443-524MCI/VerizonWirelessBaltimore
443-525AT&T MobilityWirelessBaltimore
443-526Paetec ItelLandlineHavregrace
443-527Omnipoint Communications Cap OperationsLandlineBaltimore
443-528Omnipoint Communications Cap OperationsLandlineBel Air
443-529Omnipoint Communications Cap OperationsLandlineBaltimore
443-530Paetec ItelLandlineDundalk
443-531AT&T MobilityWirelessBaltimore
443-532Metro by T-MobileWirelessPrincefrck
443-533Teleport Communications AmericaLandlineJarrettsvl
443-534Verizon WirelessWirelessAnnapolis
443-535Verizon MarylandLandlineColumbia
443-536Metro by T-MobileWirelessWestminstr
443-537Verizon WirelessWirelessColumbia
443-538Omnipoint Communications Cap OperationsLandlineColumbia
443-539Paetec ItelLandlineColumbia
443-540AT&T MobilityWirelessBaltimore
443-541Paetec ItelLandlineCockeysvl
443-542ComcastLandlineColumbia
443-543Verizon MarylandLandlineArbutus
443-544Paetec ItelLandlinePikesville
443-545Lumen/Level 3LandlineColumbia
443-546Verizon MarylandLandlineColumbia
443-547Verizon WirelessWirelessWestminstr
443-548MCI/VerizonWirelessPikesville
443-549Paetec ItelLandlineDundalk
443-550Lumen/Level 3LandlineNorthbeach
443-551Lumen/Level 3LandlineWoodlawn
443-552Verizon MarylandLandlineBaltimore
443-553Verizon WirelessWirelessElkton
443-554Omnipoint Communications Cap OperationsLandlineChase
443-555Multiple Ocn ListingLandlineDir Asst
443-556Verizon MarylandLandlineCockeysvl
443-557MCI/VerizonWirelessGlenburnie
443-558MCI/VerizonWirelessAberdeen
443-559ComcastLandlineEssex
443-560Omnipoint Communications Cap OperationsLandlineBaltimore
443-561Paetec ItelLandlineElkridge
443-562AT&T MobilityWirelessBaltimore
443-563Omnipoint Communications Cap OperationsLandlineBaltimore
443-564Lumen/Level 3LandlineTowson
443-565Paetec ItelLandlineRandallstn
443-566Verizon WirelessWirelessChesapkecy
443-567Lumen/Level 3LandlineBel Air
443-568MCI/VerizonWirelessArbutus
443-569Lumen/Level 3LandlineAnnapolis
443-570Omnipoint Communications Cap OperationsLandlineBaltimore
443-571Verizon WirelessWirelessBaltimore
443-572Verizon MarylandLandlineGlenburnie
443-573Paetec ItelLandlineBaltimore
443-574Paetec ItelLandlineEllicottcy
443-575Paetec ItelLandlineArbutus
443-576MCI/VerizonWirelessRandallstn
443-577Paetec ItelLandlineGlenburnie
443-578Xo MarylandLandlineCockeysvl
443-579Paetec ItelLandlineEssex
443-580Omnipoint Communications Cap OperationsLandlineBaltimore
443-581OnvoyLandlineChase
443-582Paetec ItelLandlineChurchvl
443-583Paetec ItelLandlineColumbia
443-584Paetec ItelLandlineCrofton
443-585Paetec ItelLandlineDarlington
443-586Core CommunicationsLandlineDundalk
443-587Paetec ItelLandlineEdgewood
443-588MCI/VerizonWirelessParkville
443-589Paetec ItelLandlineCockeysvl
443-590Lumen/Level 3LandlineReisterstn
443-591Verizon WirelessWirelessGlenburnie
443-592Core CommunicationsLandlineElkridge
443-593Paetec ItelLandlineElkton
443-594Lumen/Level 3LandlineSparrowspt
443-595Bandwidth.comLandlineSparksglnc
443-596Core CommunicationsLandlineEssex
443-597Metro by T-MobileWirelessSeverna Pk
443-598Bandwidth.comLandlineSherwd For
443-599Metro by T-MobileWirelessSevern
443-600Omnipoint Communications Cap OperationsLandlineEssex
443-601Paetec ItelLandlineFallston
443-602Verizon WirelessWirelessBaltimore
443-603Paetec ItelLandlineAnnapolis
443-604Verizon WirelessWirelessBaltimore
443-605Paetec ItelLandlineWestminstr
443-606Paetec ItelLandlineFork
443-607Paetec ItelLandlineWest River
443-608AT&T MobilityWirelessTowson
443-609Paetec ItelLandlineSykesville
443-610Verizon WirelessWirelessBaltimore
443-611Multiple Ocn ListingLandlineXxxxxxxxxx
443-612Verizon MarylandLandlineCatonsvl
443-613AT&T MobilityWirelessTowson
443-614Verizon WirelessWirelessSalisbury
443-615Verizon WirelessWirelessBaltimore
443-616Paetec ItelLandlineBel Air
443-617Verizon WirelessWirelessFallston
443-618Verizon WirelessWirelessGlenburnie
443-619Verizon WirelessWirelessBel Air
443-620Teleport Communications AmericaLandlineWaterlo238
443-621Omnipoint Communications Cap OperationsLandlineBaltimore
443-622Omnipoint Communications Cap OperationsLandlineBaltimore
443-623Omnipoint Communications Cap OperationsLandlineGlenburnie
443-624Verizon WirelessWirelessPrincefrck
443-625Lumen/Level 3LandlineFork
443-626Paetec ItelLandlineChase
443-627Lumen/Level 3LandlineBaltimore
443-628Core CommunicationsLandlineGlenburnie
443-629Omnipoint Communications Cap OperationsLandlineBaltimore
443-630Verizon WirelessWirelessBaltimore
443-631AT&T MobilityWirelessCatonsvl
443-632Paetec ItelLandlineTowson
443-633Omnipoint Communications Cap OperationsLandlineBaltimore
443-634Verizon MarylandLandlineWaterlo236
443-635AT&T MobilityWirelessBaltimore
443-636Omnipoint Communications Cap OperationsLandlineCatonsvl
443-637MCI/VerizonWirelessArgrgbsnis
443-638Global Naps SouthLandlineEllicottcy
443-639Paetec ItelLandlineHampstead
443-640Paetec ItelLandlineBel Air
443-641Lumen/Level 3LandlinePikesville
443-642Verizon WirelessWirelessBaltimore
443-643Verizon MarylandLandlineBel Air
443-644Paetec ItelLandlineJarrettsvl
443-645Paetec ItelLandlineMillersvl
443-646Paetec ItelLandlineNorthbeach
443-647Paetec ItelLandlineNewwindsor
443-648Teleport Communications AmericaLandlineEssex
443-649Paetec ItelLandlineSparrowspt
443-650MCI/VerizonWirelessReisterstn
443-651Verizon WirelessWirelessBaltimore
443-652Omnipoint Communications Cap OperationsLandlineTowson
443-653Omnipoint Communications Cap OperationsLandlineParkville
443-654Verizon MarylandLandlineWaterlo236
443-655AT&T MobilityWirelessBel Air
443-656Paetec ItelLandlineColumbia
443-657Lumen/Level 3LandlineRandallstn
443-658OnvoyLandlineWoodlawn
443-659OnvoyLandlineWest River
443-660ComcastLandlinePikesville
443-661Paetec ItelLandlineWaterlo238
443-662Paetec ItelLandlineSparksglnc
443-663Verizon MarylandLandlineWoodlawn
443-664Paetec ItelLandlineOcean City
443-665Core CommunicationsLandlineNanticoke
443-666Lumen/Level 3LandlineChestertn
443-667Verizon WirelessWirelessDelmar
443-668AT&T MobilityWirelessCatonsvl
443-669Paetec ItelLandlineDelmar
443-670Paetec ItelLandlineCatonsvl
443-671Teleport Communications AmericaLandlineNewwindsor
443-672Teleport Communications AmericaLandlineParkton
443-673Paetec ItelLandlineBrynpklncm
443-674Teleport Communications AmericaLandlineNorth East
443-675Paetec ItelLandlineRandallstn
443-676AT&T MobilityWirelessBaltimore
443-677Omnipoint Communications Cap OperationsLandlineBaltimore
443-678Verizon MarylandLandlineParkville
443-679Teleport Communications AmericaLandlineSevern
443-680Omnipoint Communications Cap OperationsLandlineBaltimore
443-681Verizon WirelessWirelessBaltimore
443-682Verizon WirelessWirelessBaltimore
443-683Verizon WirelessWirelessBaltimore
443-684Verizon WirelessWirelessPrincefrck
443-685Paetec ItelLandlineSevern
443-686Verizon WirelessWirelessFallston
443-687Verizon WirelessWirelessBaltimore
443-688Paetec ItelLandlineSevern
443-689Paetec ItelLandlineCockeysvl
443-690Verizon WirelessWirelessBaltimore
443-691AT&T MobilityWirelessBaltimore
443-692MCI/VerizonWirelessBaltimore
443-693Teleport Communications AmericaLandlinePerryville
443-694Metro by T-MobileWirelessSeverna Pk
443-695Verizon WirelessWirelessBaltimore
443-696Paetec ItelLandlineDundalk
443-697Global Naps SouthLandlineCatonsvl
443-698Teleport Communications AmericaLandlineOdenton
443-699Verizon WirelessWirelessAnnapolis
443-700Landline
443-701MCI/VerizonWirelessArbutus
443-702Paetec ItelLandlineArgrgbsnis
443-703MCI/VerizonWirelessBaltimore
443-704Paetec ItelLandlineOdenton
443-705Verizon WirelessWirelessCockeysvl
443-706Paetec ItelLandlineCrisfield
443-707Omnipoint Communications Cap OperationsLandlineAberdeen
443-708Lumen/Level 3LandlineBaltimore
443-709Paetec ItelLandlineArbutus
443-710MCI/VerizonWirelessCatonsvl
443-711Multiple Ocn ListingLandlineXxxxxxxxxx
443-712Paetec ItelLandlineReisterstn
443-713Peerless Network Of MarylandLandlineGlenburnie
443-714AT&T MobilityWirelessAnnapolis
443-715Paetec ItelLandlineNorth East
443-716Paetec ItelLandlineAnnapolis
443-717Verizon WirelessWirelessBaltimore
443-718Paetec ItelLandlineColumbia
443-719Paetec ItelLandlineJarrettsvl
443-720MCI/VerizonWirelessAberdeen
443-721Verizon WirelessWirelessBaltimore
443-722Omnipoint Communications Cap OperationsLandlineBaltimore
443-723Omnipoint Communications Cap OperationsLandlineBaltimore
443-724Paetec ItelLandlineEaston
443-725Paetec ItelLandlineParkville
443-726Omnipoint Communications Cap OperationsLandlineBaltimore
443-727Paetec ItelLandlineBishopvl
443-728Paetec ItelLandlineBerlin
443-729Paetec ItelLandlineWoodlawn
443-730Paetec ItelLandlineEssex
443-731Teleport Communications AmericaLandlinePt Deposit
443-732Teleport Communications AmericaLandlineSilver Run
443-733Teleport Communications AmericaLandlineWaterlo238
443-734Verizon MarylandLandlineSevern
443-735AT&T MobilityWirelessSalisbury
443-736AT&T MobilityWirelessSalisbury
443-737Paetec ItelLandlineWaterlo238
443-738Paetec ItelLandlinePikesville
443-739Omnipoint Communications Cap OperationsLandlineBaltimore
443-740Lumen/Level 3LandlineBaltimore
443-741MCI/VerizonWirelessColumbia
443-742AT&T MobilityWirelessBaltimore
443-743Verizon WirelessWirelessBaltimore
443-744Metro by T-MobileWirelessReisterstn
443-745Verizon WirelessWirelessColumbia
443-746Lumen/Level 3LandlineEaston
443-747Core CommunicationsLandlinePt Deposit
443-748Paetec ItelLandlineMillersvl
443-749Paetec ItelLandlineGlenburnie
443-750Verizon WirelessWirelessBaltimore
443-751Paetec ItelLandlineWoodlawn
443-752Verizon WirelessWirelessBel Air
443-753MCI/VerizonWirelessWaterlo236
443-754Verizon WirelessWirelessSalisbury
443-755Verizon MarylandLandlineWaterlo238
443-756AT&T MobilityWirelessBaltimore
443-757Paetec ItelLandlineElkridge
443-758Verizon WirelessWirelessAnnapolis
443-759Verizon WirelessWirelessBaltimore
443-760AT&TLandlineAberdeen
443-761Omnipoint Communications Cap OperationsLandlineTowson
443-762Omnipoint Communications Cap OperationsLandlineBaltimore
443-763Omnipoint Communications Cap OperationsLandlineGlenburnie
443-764Omnipoint Communications Cap OperationsLandlineGlenburnie
443-765AT&T MobilityWirelessCatonsvl
443-766Paetec ItelLandlineColumbia
443-767Paetec ItelLandlineWorthingtn
443-768Omnipoint Communications Cap OperationsLandlineBaltimore
443-769Omnipoint Communications Cap OperationsLandlineBaltimore
443-770Verizon MarylandLandlineArgrgbsnis
443-771Verizon WirelessWirelessPrincefrck
443-772Paetec ItelLandlineEssex
443-773MCI/VerizonWirelessBrynpklncm
443-774AT&T MobilityWirelessColumbia
443-775Verizon WirelessWirelessAnnapolis
443-776Bandwidth.comLandlineElkridge
443-777Verizon MarylandLandlineEssex
443-778Verizon MarylandLandlineWaterlo236
443-779MCI/VerizonWirelessAberdeen
443-780Paetec ItelLandlineWoodlawn
443-781OnvoyLandlineArgrgbsnis
443-782MCI/VerizonWirelessAnnapolis
443-783Verizon WirelessWirelessSalisbury
443-784Teleport Communications AmericaLandlineArgrgbsnis
443-785OnvoyLandlineArbutus
443-786Verizon WirelessWirelessEaston
443-787Paetec ItelLandlineBel Air
443-788Omnipoint Communications Cap OperationsLandlineAberdeen
443-789AT&T MobilityWirelessWestminstr
443-790Omnipoint Communications Cap OperationsLandlineGlenburnie
443-791AT&T MobilityWirelessTowson
443-792Verizon MarylandLandlineBrynpklncm
443-793MCI/VerizonWirelessParkville
443-794AT&T MobilityWirelessBaltimore
443-795MCI/VerizonWirelessSevern
443-796MCI/VerizonWirelessPikesville
443-797MCI/VerizonWirelessTowson
443-798Lumen/Level 3LandlineTowson
443-799AT&T MobilityWirelessBaltimore
443-800Omnipoint Communications Cap OperationsLandlineBaltimore
443-801Omnipoint Communications Cap OperationsLandlineBaltimore
443-802Omnipoint Communications Cap OperationsLandlineBaltimore
443-803Omnipoint Communications Cap OperationsLandlineBaltimore
443-804Omnipoint Communications Cap OperationsLandlineBaltimore
443-805Omnipoint Communications Cap OperationsLandlineGlenburnie
443-806Omnipoint Communications Cap OperationsLandlineBaltimore
443-807Metro by T-MobileWirelessFallston
443-808Bandwidth.comLandlineAnnapolis
443-809Lumen/Level 3LandlineTowson
443-810Omnipoint Communications Cap OperationsLandlineBaltimore
443-811Multiple Ocn ListingLandlineXxxxxxxxxx
443-812Verizon WirelessWirelessColumbia
443-813Verizon WirelessWirelessBaltimore
443-814Verizon WirelessWirelessBaltimore
443-815MCI/VerizonWirelessEssex
443-816MCI/VerizonWirelessSeverna Pk
443-817MCI/VerizonWirelessArgrgbsnis
443-818Lumen/Level 3LandlineArgrgbsnis
443-819Omnipoint Communications Cap OperationsLandlineBel Air
443-820Paetec ItelLandlineElkridge
443-821Metro by T-MobileWirelessWestminstr
443-822Omnipoint Communications Cap OperationsLandlineAnnapolis
443-823Verizon WirelessWirelessTowson
443-824Omnipoint Communications Cap OperationsLandlineTowson
443-825Omnipoint Communications Cap OperationsLandlineBaltimore
443-826Verizon WirelessWirelessBaltimore
443-827Verizon WirelessWirelessBaltimore
443-828Paetec ItelLandlineEllicottcy
443-829Omnipoint Communications Cap OperationsLandlineBaltimore
443-830Paetec ItelLandlineCatonsvl
443-831AT&T MobilityWirelessBaltimore
443-832Lumen/Level 3LandlineColumbia
443-833Paetec ItelLandlineArbutus
443-834Verizon WirelessWirelessTowson
443-835Verizon WirelessWirelessBaltimore
443-836MCI/VerizonWirelessBaltimore
443-837Paetec ItelLandlineAnnapolis
443-838AT&T MobilityWirelessBaltimore
443-839Omnipoint Communications Cap OperationsLandlineBaltimore
443-840AT&T MobilityWirelessCatonsvl
443-841Verizon MarylandLandlineTowson
443-842Verizon WirelessWirelessBaltimore
443-843Verizon MarylandLandlineHavregrace
443-844Verizon WirelessWirelessBaltimore
443-845Verizon WirelessWirelessBaltimore
443-846AT&T MobilityWirelessTowson
443-847Verizon WirelessWirelessTowson
443-848Omnipoint Communications Cap OperationsLandlineGlenburnie
443-849Verizon MarylandLandlineTowson
443-850Omnipoint Communications Cap OperationsLandlineBaltimore
443-851Omnipoint Communications Cap OperationsLandlineCatonsvl
443-852AT&T MobilityWirelessAnnapolis
443-853Verizon WirelessWirelessBaltimore
443-854Omnipoint Communications Cap OperationsLandlineBaltimore
443-855Paetec ItelLandlineAberdeen
443-856Core CommunicationsLandlineOcean City
443-857Omnipoint Communications Cap OperationsLandlineBaltimore
443-858Omnipoint Communications Cap OperationsLandlineBaltimore
443-859Omnipoint Communications Cap OperationsLandlineSalisbury
443-860AT&T MobilityWirelessCatonsvl
443-861Verizon MarylandLandlineAberdeen
443-862Verizon WirelessWirelessTowson
443-863Verizon WirelessWirelessBaltimore
443-864Metro by T-MobileWirelessColumbia
443-865Omnipoint Communications Cap OperationsLandlineBaltimore
443-866Omnipoint Communications Cap OperationsLandlineBel Air
443-867Paetec ItelLandlineGlenburnie
443-868Verizon MarylandLandlineEssex
443-869Verizon WirelessWirelessBaltimore
443-870Lumen/Level 3LandlinePikesville
443-871Omnipoint Communications Cap OperationsLandlineAnnapolis
443-872Paetec ItelLandlineBaltimore
443-873OnvoyLandlineBaltimore
443-874Paetec ItelLandlineBaltimore
443-875AT&T MobilityWirelessAnnapolis
443-876Omnipoint Communications Cap OperationsLandlineBel Air
443-877Lumen/Level 3LandlineNorth East
443-878Verizon WirelessWirelessColumbia
443-879Verizon MarylandLandlineDundalk
443-880Teleport Communications AmericaLandlineSalisbury
443-881Metro by T-MobileWirelessReisterstn
443-882Omnipoint Communications Cap OperationsLandlineBaltimore
443-883Teleport Communications AmericaLandlineGlenburnie
443-884Paetec ItelLandlineBaltimore
443-885Verizon MarylandLandlineBaltimore
443-886Teleport Communications AmericaLandlineCockeysvl
443-887Paetec ItelLandlineCatonsvl
443-888Paetec ItelLandlinePrinceanne
443-889Omnipoint Communications Cap OperationsLandlineGlenburnie
443-890Verizon WirelessWirelessBaltimore
443-891MCI/VerizonWirelessGlenburnie
443-892Bandwidth.comLandlineNewwindsor
443-893MCI/VerizonWirelessWoodlawn
443-894Omnipoint Communications Cap OperationsLandlineBaltimore
443-895Verizon WirelessWirelessTowson
443-896Teleport Communications AmericaLandlineColumbia
443-897AT&T MobilityWirelessBaltimore
443-898Lumen/Level 3LandlinePikesville
443-899Lumen/Level 3LandlineWaterlo238
443-900Verizon WirelessWirelessTowson
443-901Paetec ItelLandlineTowson
443-902Verizon WirelessWirelessBaltimore
443-903Verizon WirelessWirelessBel Air
443-904Verizon WirelessWirelessBaltimore
443-905AT&T MobilityWirelessAnnapolis
443-906Peerless Network Of MarylandLandlineSeverna Pk
443-907Verizon WirelessWirelessElkton
443-908Verizon WirelessWirelessBaltimore
443-909Verizon WirelessWirelessBaltimore
443-910AT&T MobilityWirelessBel Air
443-911Multiple Ocn ListingLandlineXxxxxxxxxx
443-912Core CommunicationsLandlineTowson
443-913Omnipoint Communications Cap OperationsLandlineBaltimore
443-914Teleport Communications AmericaLandlineWorthingtn
443-915Verizon WirelessWirelessBaltimore
443-916Omnipoint Communications Cap OperationsLandlineBaltimore
443-917OnvoyLandlineColumbia
443-918Teleport Communications AmericaLandlineTaneytown
443-919Paetec ItelLandlineBaltimore
443-920Teleport Communications AmericaLandlineSykesville
443-921Paetec ItelLandlineTowson
443-922Paetec ItelLandlineEdgewood
443-923Paetec ItelLandlineBaltimore
443-924Verizon WirelessWirelessAnnapolis
443-925Omnipoint Communications Cap OperationsLandlineBaltimore
443-926Lumen/Level 3LandlineAnnapolis
443-927Lumen/Level 3LandlineBaltimore
443-928Verizon WirelessWirelessBaltimore
443-929Omnipoint Communications Cap OperationsLandlinePikesville
443-930Verizon WirelessWirelessBaltimore
443-931MCI/VerizonWirelessBaltimore
443-932Omnipoint Communications Cap OperationsLandlineBaltimore
443-933Teleport Communications AmericaLandlineCockeysvl
443-934Verizon WirelessWirelessBaltimore
443-935AT&T MobilityWirelessTowson
443-936AT&T MobilityWirelessElkridge
443-937Teleport Communications AmericaLandlineUnion Bdg
443-938Verizon WirelessWirelessBaltimore
443-939Omnipoint Communications Cap OperationsLandlineBaltimore
443-940Paetec ItelLandlinePikesville
443-941AT&T MobilityWirelessElkton
443-942Teleport Communications AmericaLandlineSeverna Pk
443-943Teleport Communications AmericaLandlineSparrowspt
443-944ComcastLandlineSalisbury
443-945AT&T MobilityWirelessElkton
443-946Core CommunicationsLandlineParkville
443-947Paetec ItelLandlinePerryville
443-948Omnipoint Communications Cap OperationsLandlineBaltimore
443-949ComcastLandlineAnnapolis
443-950Landline
443-951Lumen/Level 3LandlineAnnapolis
443-952Verizon WirelessWirelessWestminstr
443-953Verizon WirelessWirelessSalisbury
443-954Paetec ItelLandlineBaltimore
443-955Verizon WirelessWirelessBaltimore
443-956AT&T MobilityWirelessBaltimore
443-957AT&TLandlineBaltimore
443-958Landline
443-959Landline
443-960Verizon WirelessWirelessGlenburnie
443-961Intrado CommunicationsLandlineBaltimore
443-962Verizon WirelessWirelessGlenburnie
443-963Bandwidth.comLandlineBaltimore
443-964Lumen/Level 3LandlineNorthbeach
443-965Omnipoint Communications Cap OperationsLandlineBaltimore
443-966Verizon WirelessWirelessFallston
443-967Verizon MarylandLandlineNorth East
443-968AT&T MobilityWirelessPrincefrck
443-969Paetec ItelLandlineEssex
443-970Verizon WirelessWirelessBaltimore
443-971Bandwidth.comLandlineTaneytown
443-972Paetec ItelLandlineCambridge
443-973MCI/VerizonWirelessEllicottcy
443-974Teleport Communications AmericaLandlineWestminstr
443-975AT&T MobilityWirelessPrincefrck
443-976Multiple Ocn ListingLandlineXxxxxxxxxx
443-977Verizon WirelessWirelessBaltimore
443-978Verizon WirelessWirelessSalisbury
443-979Verizon WirelessWirelessColumbia
443-980AT&T MobilityWirelessCatonsvl
443-981Verizon WirelessWirelessFallston
443-982Ymax CommunicationsLandlineBaltimore
443-983Omnipoint Communications Cap OperationsLandlineBaltimore
443-984Verizon MarylandLandlineBaltimore
443-985Omnipoint Communications Cap OperationsLandlineRandallstn
443-986Verizon WirelessWirelessBaltimore
443-987Verizon WirelessWirelessBel Air
443-988Lumen/Level 3LandlineCentrevl
443-989Paetec ItelLandlineGlenburnie
443-990Bandwidth.comLandlineBaltimore
443-991Verizon WirelessWirelessTowson
443-992Lumen/Level 3LandlineBaltimore
443-993Metro by T-MobileWirelessElkton
443-994AT&T MobilityWirelessAnnapolis
443-995AT&T MobilityWirelessAnnapolis
443-996AT&T MobilityWirelessCatonsvl
443-997Verizon MarylandLandlineBaltimore
443-998Verizon MarylandLandlineParkville
443-999Verizon MarylandLandlineBaltimore

All 6 area codes in Maryland

443227240301410667

About Area Code 443

Area code 443 popped up in 1997, right when Maryland was seeing a surge in folks moving in and businesses sprouting up around Baltimore. Back then, the original area code for this part of the state was running out of numbers fast, thanks to all the new homes, offices, and even the tech boom that hit the East Coast. So, they layered on 443 as an overlay to keep the lines open without messing with existing setups. It's like adding an extra lane to a busy highway—things just keep flowing. This code covers a bunch of spots in Maryland, from the historic vibes of Annapolis, where you can still feel the echoes of colonial days, to the everyday hustle in Baltimore with its rowdy sports scene and neighborhoods full of character. Then there's places like Columbia, a planned community that's all about that suburban dream, or Ellicott City with its quirky shops and rolling hills. What sets 443 apart is how it ties together a mix of old-school charm and modern life—think crab feasts by the bay one day and commuting to a high-tech job the next. Over the years, it's become a staple for locals, handling everything from quick family chats to big business deals. With about 12 cities under its belt, it's got that Eastern Time Zone rhythm, ticking along at UTC-5, which means you're synced up with the rest of the East Coast crowd.

⚠ Scam & Spam Alert for 443

If you live in the 443 area, you've probably dodged a few shady calls by now. Scammers target Maryland just like anywhere else, and some common ones include IRS imposters who claim you owe money and demand payment on the spot—don't fall for that, since the real IRS doesn't call like that. Then there are those pesky auto warranty robocalls pushing fake extended plans for your car, or Medicare fraud schemes that try to get your personal info under the guise of updating records. These can hit hard in a state with a lot of retirees and families. Remember, scammers often use local numbers to seem legit, so always hang up and call back using a verified number if something sounds off. One simple tip: Block unknown numbers on your phone and never share sensitive details unless you're sure who's on the other end.

Local Snapshot

Maryland's population hovers around 6 million people, with the Baltimore area packing in a dense mix that keeps the streets lively and the communities tight-knit. The key industries here revolve around healthcare and education, with big names like Johns Hopkins driving innovation and jobs for thousands. Baltimore is famous for its blue crabs and the Inner Harbor, a spot where folks gather for fresh seafood and waterfront walks on a sunny afternoon. Here's a fun twist: The state gave us the Star-Spangled Banner, written by a local lawyer during the War of 1812, which adds a bit of patriotic flair to everyday life around these parts.

Frequently Asked Questions

Where is area code 443?
Area code 443 serves Baltimore and surrounding communities in Maryland, including Annapolis, Baltimore, Bel Air, Catonsville, Columbia and 7 more. It is in the Eastern time zone.
What cities are in area code 443?
Area code 443 covers 12 cities in Maryland: Annapolis, Baltimore, Bel Air, Catonsville, Columbia, Dundalk, Ellicott City, Glen Burnie, Havre de Grace, Pasadena, and 2 more
What time zone is 443?
Area code 443 is in the Eastern time zone (UTC-5).
When was area code 443 created?
Area code 443 was established in 1997 as an overlay to provide additional numbers for the region.
Is 443 a legitimate area code?
Yes, 443 is a valid, active area code assigned to Baltimore, Maryland. However, scammers can spoof any area code, so receiving a call from 443 doesn't guarantee the caller is actually in this area.

Why was the 443 area code introduced in 1997 for the Baltimore region?

The 443 area code was created as an overlay for the existing 410 code due to rapid population growth and increased demand for phone numbers in Maryland's central areas. This allowed for more lines to support expanding communities like Baltimore and Annapolis without disrupting existing services. It reflects the region's development following earlier suburban expansion.

What historical sites in Annapolis are linked to the 443 area code?

Annapolis, served by 443, is home to the U.S. Naval Academy, a key institution founded in 1845 that trains naval officers and hosts events drawing visitors. The Maryland State House in Annapolis, where the Continental Congress met, adds to the area's rich colonial history. These sites highlight the region's role in American naval and governmental heritage.

How does the 443 area code relate to healthcare facilities in Baltimore?

The 443 area code covers major hospitals in Baltimore, such as Johns Hopkins, which has been a leader in medical research since the late 1800s. This overlay supports the high volume of calls for patient services and emergencies in the region. It connects residents to specialized care centers that have shaped Baltimore's reputation in medicine.

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