623 Area Code

Area Code	623
State	Arizona
Country	United State
Code Type	General Purpose Code
In Service	Yes
Timezone	Mountain Standard Time (MST)
Overlay Complex	480/602/623
Assignment Date	11-JAN-99
In Service Date	01-MAR-99
Area Code	623

What is the 623 Area Code?

Area code 623 is located in Arizona, within United State, serving the region's residents and businesses. The 623 area code was first assigned in 11-JAN-99 and has been in service since 01-MAR-99.

The 623 area code is part of an overlay complex, which includes the area codes 480/602/623. These codes all serve the same geographic region.

Cities in Area Code 623

Area codes of Arizona

Further Details on the 623 Area Code

Where is the 623 Area Code Located?

Area code 623 serves the entire state of Arizona 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 623 in?

Area code 623 is located in the Mountain Standard Time (MST) time zone. This designation indicates the predominant time zone for calls made within this area code.

When was area code 623 assigned and put into service?

Area code 623 was officially assigned on 11-JAN-99, signifying its designation for use in telecommunications, and it became operational on 01-MAR-99, allowing callers to begin using this area code for their dialing needs.

Is the 623 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 623?

For local calls within area code 623, 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 623, local calls require 10D, and toll calls use 1+10D.

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