858 Area Code

Area Code	858
State	California
Country	United State
Code Type	General Purpose Code
In Service	Yes
Timezone	Pacific Standard Time (PST)
Overlay Complex	619/858
Assignment Date	30-JUN-98
In Service Date	12-JUN-99
Area Code	858

What is the 858 Area Code?

Area code 858 is located in California, within United State, serving the region's residents and businesses. The 858 area code was first assigned in 30-JUN-98 and has been in service since 12-JUN-99.

The 858 area code is part of an overlay complex, which includes the area codes 619/858. These codes all serve the same geographic region.

Cities in Area Code 858

Area codes of California

Further Details on the 858 Area Code

Where is the 858 Area Code Located?

Area code 858 serves the entire state of California 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 858 in?

Area code 858 is located in the Pacific Standard Time (PST) time zone. This designation indicates the predominant time zone for calls made within this area code.

When was area code 858 assigned and put into service?

Area code 858 was officially assigned on 30-JUN-98, signifying its designation for use in telecommunications, and it became operational on 12-JUN-99, allowing callers to begin using this area code for their dialing needs.

Is the 858 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 858?

For local calls within area code 858, the required dialing pattern is 1+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 858, local calls require 1+10D, and toll calls use 1+10D.

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