Palo AltoRedwood CitySan MateoCalifornia (CA)
How to dial a 650 number from abroad
Calling Palo Alto from outside the United States? Dial the full number in international format — you don't need the US exit code, that's only for calls made from inside the US.
International format
A 650 number looks like this when dialed from anywhere in the world:
+1 650 XXX XXXX
Other area codes in California
Frequently asked questions
How do I call a Palo Alto number from abroad?
Dial + (or 00 from most countries), then 1 for the US, then 650, then the 7-digit local number. So a Palo Alto number reads as +1 650 XXXXXXX.
What other area codes serve Palo Alto?
Palo Alto is served only by area code 650 — no other code overlays this area.
How much does Hyallo charge to call area code 650?
Calls to Palo Alto landlines start at $0.02/min with Hyallo, and your first call is free. Mobile numbers in the same area code can cost more, since they're billed at the real carrier rate.