The 650 area code is located in the state of California, and according to Intelius data, covers roughly 619,191 phone numbers and 850,032 listings across 723 prefixes.
This is a General Purpose Code, in service since August 2, 1997.
Area code 650 was split from area code 415.
Local and long-distance calls within area code 650 both require 1 plus 10 digits dialing.
Have you received a call from a number with a 650 area code? Figure out who is calling you by performing a reverse phone lookup search. Intelius can provide you with a phone report that includes (when available) original line type and carrier, the number owner’s name, last known address and past addresses, age, possible relatives, and more.
| County Population (2025) | 743,568 |
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| County Population (2025) | 1,914,391 |
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