Area Code 764 Location & Details
State / Region: California • Country: United States
Major Cities Covered: San Mateo, Redwood City, Palo Alto
Area Code 764 Geographic Map
Interactive location bounds and coverage area for California (Pacific Timezone)
Where is Area Code 764 Located?
Telephone area code 764 is assigned to California in United States. It serves cities and metropolitan communities including San Mateo, Redwood City, Palo Alto.
For local and long-distance calls within area code 764, standard 10-digit dialing (764) XXX-XXXX applies.
Who Called Me from Area Code 764?
Received an unknown call, missed call, or text scam from area code 764? Here is how to trace who is calling from 764 area code and verify unknown numbers safely:
Legitimate contacts usually leave a detailed voicemail or caller ID record.
Robocallers often fake incoming caller ID numbers using your local 764 prefix to boost pick-up rates.
Search public white-pages or use caller intelligence guides before returning unfamiliar calls.
How to Call Area Code 764 & Dialing Format
When placing a phone call to a number in area code 764, follow the correct dialing format depending on your calling location:
- Calling from inside the US / Canada (+1): Dial
1 + (764) + 7-digit number. - Calling from an international location outside +1: Dial your country's international exit code (e.g.
011in US or+on mobile) +1+764+7-digit number. - Do I need to dial area code 764 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.
Top Cities & Municipalities Served in Area Code 764
Urban centers, census places, and communities within the +1-764 calling area
| City Name | County | Population | % of 764 Pop |
|---|---|---|---|
| San Mateo | San Mateo County | 103,337 | 40.8% |
| Redwood City | San Mateo County | 82,178 | 32.5% |
| Palo Alto | San Mateo County | 67,609 | 26.7% |
Counties Covered by Area Code 764
Geographic county distribution and population coverage across California
| County Name | Total Population | % of 764 Area | % of County |
|---|---|---|---|
| San Mateo County | 740,627 | 100.0% | 34% |
☎️Area Code 764 Exchange Prefixes & Carriers
Showing 15 of 15 central office 3-digit prefixes and assigned telecom carriers
| Prefix | Line Usage | Rate Center | Assigned Carrier | Assign Date |
|---|---|---|---|---|
| (764) 200- | 📞Landline | California and surrounding communities | Verizon New York | 01/11/2007 |
| (764) 201- | 📱Wireless | California and surrounding communities | AT&T Mobility | 04/18/2008 |
| (764) 202- | 📞Landline | California and surrounding communities | Spectrum / Charter | 12/24/2006 |
| (764) 203- | 📞Landline | California and surrounding communities | Frontier Communications | 12/18/2006 |
| (764) 204- | 📱Wireless | California and surrounding communities | T-Mobile USA | 01/24/2007 |
| (764) 205- | 💻VoIP | California and surrounding communities | Bandwidth.com | 05/12/2011 |
| (764) 206- | 📞Landline | California and surrounding communities | Verizon New York | 01/24/2007 |
| (764) 207- | 📞Landline | California and surrounding communities | Verizon New York | 07/22/1999 |
| (764) 208- | 📱Wireless | California and surrounding communities | AT&T Mobility | 01/25/2007 |
| (764) 209- | 📱Wireless | California and surrounding communities | AT&T Mobility | 01/26/2007 |
| (764) 210- | 📞Landline | California and surrounding communities | Spectrum / Charter | 07/22/1999 |
| (764) 212- | 📱Wireless | California and surrounding communities | AT&T Mobility | 06/13/2000 |
| (764) 214- | 📞Landline | California and surrounding communities | Verizon New York | 10/13/1999 |
| (764) 215- | 📞Landline | California and surrounding communities | Frontier Communications | 07/22/1999 |
| (764) 218- | 📞Landline | California and surrounding communities | Spectrum / Charter | 10/13/1999 |
Frequently Asked Questions about Area Code 764
Where is area code 764 located?
Area code 764 is located in California (United States), serving cities like San Mateo, Redwood City, Palo Alto.
What timezone is area code 764?
Area code 764 operates in the Pacific timezone.
What state is area code 764?
Area code 764 is assigned to the state / telecom territory of California.
Is area code 764 a scam or dangerous?
Area code 764 is an official geographic area code for California. However, beware of robocaller spoofing.
California State Area Codes
View complete directory of telephone area codes assigned to California.
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