California San MateoGeographic

Area Code 650

San Mateo, California

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CA Registered BusinessUS RegisteredSSL Encrypted Checkout

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36,786

Available Numbers

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Cities Covered

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Los Angeles

Timezone

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10-digit

Dialing Rules

Coverage Area

650 Cities and regions covered

California · CA

Major Cities

San Mateo Redwood City Palo Alto Mountain View Menlo Park Foster City Burlingame San Carlos Belmont Daly City

In Service 1997-01-01

Status Active

Area Code History

650

650区号于1997年从415区号拆分而来，覆盖加利福尼亚州圣马特奥县及硅谷北部地区。

Dialing Rules

650

10-digit

When dialing 650 area code numbers, follow these rules:

Local calls require full 10-digit dialing (area code + 7-digit number)
Long-distance calls require 1 + area code + 7-digit number

Why 650 is Valuable for Business

650 · San Mateo

The 650 area code covers San Mateo and surrounding areas, making it one of the most commercially valuable area codes in California. Owning a premium 650 number enhances your business image and customer trust.

Premium Numbers

650 Premium numbers in this area code

FAQ

650 FAQ

What state is the 650 area code in?

The 650 area code is in California (CA), primarily covering San Mateo and surrounding areas.

How do I get a premium 650 area code number?

You can search and buy premium 650 numbers on GreatNumber. We offer one-time payment with lifetime ownership — no monthly fees or hidden charges. We provide full porting assistance after purchase.

Can I port a 650 number to another carrier?

Yes, all numbers purchased on GreatNumber can be ported to any carrier of your choice (T-Mobile, AT&T, Verizon, etc.). Porting typically takes 3-14 business days, and we provide full bilingual support.

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Area Code 650

650 Cities and regions covered

Major Cities

650

650

650 · San Mateo

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650 FAQ

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