According to North American Numbering Plan, 650403 located in SAN MATEO, California. the first three digits 650 locate to state California, 403 locate the city SAN MATEO, furthermore, we also provide some other information such as the zip code example(s) 94401, 94402, 94403, carrier ALLEGIANCE TELECOM, INC. - CA, and the latitude and longitude is 37.5747 -122.3422. Please pay attention that the detail we provide only as a reference, the details of the zip code may be not complete, the latitude and longitude likely to have deviation.

Here are some random corresponding phone numbers.