Area code 858 serves the state of California. This area code was assigned on June 30th, 1998. On June 12th, 1999 it went into service. 858 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.

2025年2月1日 · 858 Area Code located in California, including 17 cities, 1 counties, 1 time zone, map, Census demographics, and 497 active prefixes.

4 天之前 · 858 is an area code located in the state of California, US. The largest city it serves is San Diego. Location, time zone and map of the 858 area code

Area codes 619 and 858 are telephone area codes in the North American Numbering Plan (NANP) for most of San Diego County in the U.S. state of California. Area code 619 was created by a split of area code 714 in 1982.

2023年7月5日 · Area code 858 is located in California. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.

2025年1月29日 · Area code 858 is assigned for use in California since Jun 12, 1999. This area code originated from the 619 area code previously by means of area code split or overlay. View all phone prefixes used in area code 858 or other area codes in California.

About area code 858: location, common spam callers, related area codes, and more. Includes 858 reverse phone lookup to identify spam callers.

Get information and map of 858 area code, California which shows the counties covered in it. Also get the county list which belongs to area code 858.

What is the 858 Area Code? The 858 area code is a three-digit code assigned to the North American Numbering Plan (NANP) for the San Diego, California region. It is one of the original area codes established in 1947 and serves the northern part of San Diego County, including the city of San Diego. Key Facts:

Lookup information on Area Code 858 - get demographic, NPA NXX, and other data by area code