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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.
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
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.
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).
San Diego, California Area Code Maps
The following maps show area codes for San Diego and the state of California.
Maps may not be completely up to date. Check other map links below if this appears out of date.
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
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