Area Codes for San Diego, California

There are 4 area codes actively in use in greater metropolitan San Diego, including: 619, 858, 760, 442. These area codes cover San Diego proper as well as nearby suburbs and towns, including La Jolla, Mission Beach, La Mesa, National City, and Chula Vista, among other locations. In addition, a large number of area codes are used in other parts of California.

In San Diego, area codes are always included in written telephone numbers and area codes must be dialed for all calls, even for local calling. All US phone numbers are 10-digits total, including a 3-digit area code and a 7-digit local subscriber number.

San Diego area code information:

San Diego area codes:
619, 858, 760, 442

Area codes are used to route phone calls to a specific geographic area within a country. All area codes in the United States are exactly 3-digits long.

In the past, a given region often had just one area code. Nowadays, many cities and towns in denser urban areas, including San Diego, have 2 or more area codes.

To make an inbound international call (or domestic long distance call) to a San Diego landline or mobile phone, you need to dial the appropriate 3-digit area code, followed by a 7-digit local subscriber number.

If you don't have a fully specified 10-digit phone number, including area code, you will not be able to complete an inbound call.

Lookup San Diego phone numbers

Area Codes Used In & Near San Diego, California

There are 4 area codes used in San Diego and surrounding areas. As yet, San Diego does not yet widely use 'overlay' area codes which have been introduced in other areas to provide additional phone number capacity.

Many other area codes are used across the rest of the state of California.

Here are the area codes in use for greater San Diego metro area.

San Diego Area Codes

Area Codes Main Locations
 619  Southern half of San Diego metro, including downtown San Diego, Chula Vista, Imperial Beach, National City, Santee, La Mesa
 858  Northern half of San Diego metro, including La Jolla, Pacific Beach, Clairemont, Del Mar, Poway
Northern and western parts of San Diego, including Encinitas, Escondido, Oceanside, Ramona

To accommodate demand for new phone numbers, San Diego has begun adding 'overlay' area codes - meaning that as new phone numbers are needed, a new area code is added within the footprint of an existing area code(s). For instance, the area code 442 was added recently within the footprint of the 760 area code.

See maps and other area code listings below for further information.

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Area Codes for Towns in San Diego Area

Here are the area codes for the 20 largest cities and towns in and around San Diego, California (in alpha order).

Town Area Code(s)
Chula Vista area code  619 
Clairemont area code  858 
Coronado area code  619 
Del Mar area code  858 
El Cajon area code  619 
Imperial Beach area code  619 
La Jolla area code  858 
La Mesa area code  619 
Lemon Grove area code  619 
Linda Vista area code  858 
National City area code  619 
Ocean Beach area code  619 
Pacific Beach area code  858 
Poway area code  858 
San Diego area code  619 
Santee area code  619 
Solana Beach area code  858 
Spring Valley area code  619 
University City area code  858 

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San Diego, California Area Code Maps

The following maps show area codes for San Diego and the state of California.

San Diego Area Code Map

Highlights footprint of new 442 overlay area code

San Diego area code map

Source: San Diego Union-Tribune

California Area Code Map

California area code map

Source: Area Code Maps

Maps may not be completely up to date. Check other map links below if this appears out of date.

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City Codes vs. Area Codes

In some cases, area codes may be referred to as city codes. However, a 'city code' more correctly refers to the codes used to designate airports and other geographic locations. These codes are issued under the United Nation's UN/LOCODE system and/or the IATA airport coding system. The city code for San Diego is SAN.

Other Area Code Information

San Diego online telephone directories
San Diego dialing steps

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