443 Area Code

Area Code 443
State Maryland
Country United State
Code Type General Purpose Code
In Service Yes
Timezone Eastern Standard Time (EST)
Overlay Complex 410/443/667
Assignment Date 21-JUN-96
In Service Date 01-JUN-97
Area Code 443

What is the 443 Area Code?

Area code 443 is located in Maryland, within United State, serving the region's residents and businesses. The 443 area code was first assigned in 21-JUN-96 and has been in service since 01-JUN-97.

The 443 area code is part of an overlay complex, which includes the area codes 410/443/667. These codes all serve the same geographic region.

Cities in Area Code 443

Area codes of Maryland
Area codes of Maryland

Further Details on the 443 Area Code

Where is the 443 Area Code Located?

Area code 443 serves the entire state of Maryland in United State, providing phone services to both residential and business users. It covers urban, suburban, and rural areas alike, ensuring reliable communication across the region.

What time zone is area code 443 in?

Area code 443 is located in the Eastern Standard Time (EST) time zone. This designation indicates the predominant time zone for calls made within this area code.

When was area code 443 assigned and put into service?

Area code 443 was officially assigned on 21-JUN-96, signifying its designation for use in telecommunications, and it became operational on 01-JUN-97, allowing callers to begin using this area code for their dialing needs.

Is the 443 Area Code Still Active?

Yes, the 302 area code is still active and in service. It is the primary area code for all landline and mobile phones registered in Delaware. There are no overlay codes currently in place for the state.

What are the dialing requirements for making calls with area code 443?

For local calls within area code 443, the required dialing pattern is 10D. For toll calls, you'll need to dial 1+10D , where "D" indicates the number of digits to dial. When calling foreign NPAs from area code 443, local calls require 10D, and toll calls use 1+10D.

Data Sources: NANPA Area Code, U.S. Area Code Map