Summary

Area code 650 is associated with Belmont, Burlingame, Daly City, East Palo Alto, Foster City, Los Altos, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Redwood City, San Bruno, San Carlos, San Mateo and South San Francisco, California, United States.

Area Code
650
Area Code 650
Country United States
Country Code US
State / Province California
Associated Cities 16
Coordinates 37.53483, -122.28466

About Area Code 650

Area code 650 is a North American telephone area code associated with Belmont, Burlingame, Daly City, East Palo Alto, Foster City, Los Altos, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Redwood City, San Bruno, San Carlos, San Mateo and South San Francisco in California, United States. It is part of the North American Numbering Plan, which assigns three-digit codes to geographic areas across the United States, Canada and neighbouring territories.

The dataset lists 16 associated cities for area code 650, each with its own latitude and longitude. These city associations reflect the communities served by the numbering area when the data was compiled.

Area code 650 falls within California. Area codes are assigned geographically, but because of number portability a phone number does not always stay in the region it was originally issued for.

The approximate centre of this numbering area is located at latitude 37.53483 and longitude -122.28466, placing it within California. Coordinates are averaged from the associated city data and should be treated as a general reference point.

Area code 650 is one of hundreds of codes in the North American Numbering Plan. Codes are opened, split and overlaid by numbering administrators as demand changes, so city and region associations can shift over time.

Because of number portability, the current location of a phone number may differ from the area shown here. This page describes the area code assignment, not the physical location of an individual subscriber in United States.

Cities in Area Code 650

City State / Province Region Code Latitude Longitude
Belmont California CA 37.5202100 -122.2758000
Burlingame California CA 37.5841000 -122.3660800
Daly City California CA 37.7057700 -122.4619200
East Palo Alto California CA 37.4688300 -122.1410800
Foster City California CA 37.5585500 -122.2710800
Los Altos California CA 37.3852200 -122.1141300
Menlo Park California CA 37.4538300 -122.1821900
Millbrae California CA 37.5985500 -122.3871900
Mountain View California CA 37.3860500 -122.0838500
Pacifica California CA 37.6138300 -122.4869200
Palo Alto California CA 37.4418800 -122.1430200
Redwood City California CA 37.4852200 -122.2363500
San Bruno California CA 37.6304900 -122.4110800
San Carlos California CA 37.5071600 -122.2605200
San Mateo California CA 37.5629900 -122.3255300
South San Francisco California CA 37.6546600 -122.4077500

Data Source

Area-code data is imported from Area Code Geolocation Database, a North American area-code geolocation database. GitHub.

This is a snapshot of an external open dataset, not a live telecom feed. Area-code boundaries and city associations may change over time, and number portability means an individual number may not be located where its area code suggests. Always confirm details with the relevant carrier or authority before relying on them.

Portability note: numbers can be moved between providers and regions, so an area code does not guarantee the caller's actual location.

Frequently Asked Questions

Where is area code 650 located?

Area code 650 is located in United States, within California.

Which cities use area code 650?

Area code 650 is associated with Belmont, Burlingame, Daly City, East Palo Alto, Foster City, Los Altos, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Redwood City, San Bruno, San Carlos, San Mateo and South San Francisco.

Is an area code tied to a physical location?

No. Area codes are assigned geographically, but number portability means a phone number can move between regions and keep its original area code. The association shown here describes the area-code assignment, not a caller's current location.

Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.