415 Area CodeSan Francisco, CA
Area code 415 covers San Francisco and nearby communities in California, in the Pacific Time (PT) zone, home to about 1.2 million people across 32 cities. It overlays 628, so the same region uses both and every local call needs all ten digits.
Overview
- Major City
- San Francisco
- State
- California (CA)
- Timezone
- Pacific Time (PT)
- Current Time
- Overlay
- Yes – shares area with 628
Where is area code 415?
Area code 415 serves part of San Francisco, CA and the surrounding areas. It has a single overlay (628) that serves the same area.
Overview of the 415 Area Code
What is the 415 area code?
The 415 area code serves San Francisco, California, alongside other established area codes. When you see a 415 number, it indicates a local number within this geographic area.
Why was area code 415 created?
The 415 area code was introduced as an overlay to add numbers in San Francisco once the existing area code 628 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 415 Area Code
The 415 area code serves San Francisco and surrounding areas in California. It operates within the Pacific Time (PT) time zone. It complements the coverage of area code 628. This area code covers several key cities, including:
- San Francisco
- Daly City
- San Rafael
- Novato
- Mill Valley
- Larkspur
Got a call from a 415 number? It came from San Francisco, CA. Since 415 overlays with 628, every local call in the region needs all ten digits to land on the right line. Inside 415, San Francisco holds about 71% of the population; the rest is split across 31 smaller cities.
San Francisco Area Codes Overview
San Francisco is served by multiple area codes, reflecting its telecommunications needs. The 415 area code operates alongside 628. Here are the area codes serving this region:
The introduction of the 415 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 415 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| San Francisco | CA | 827,526 | 17% | 59% |
| Daly City | CA | 101,418 | 0% | 16% |
| San Rafael | CA | 59,961 | 3% | 100% |
| Novato | CA | 52,311 | 3% | 99% |
| Mill Valley | CA | 13,904 | 1% | 100% |
| Larkspur | CA | 12,807 | 0% | 100% |
| San Anselmo | CA | 12,645 | 0% | 100% |
| Tamalpais-Homestead Valley | CA | 10,735 | 1% | 100% |
| Corte Madera | CA | 10,006 | 1% | 100% |
| Tiburon | CA | 8,933 | 2% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 415 been reported for unwanted calls?
Yes – 539 unwanted-call complaints were reported to the FTC for numbers showing a 415 area code (May 29 – Jul 2, 2026).
- 50% robocalls
- ↑ 28% vs prior period
Most-reported subjects
- Other44%236
- Calls pretending to be government, businesses, or family and friends15%82
- Reducing your debt (credit cards, mortgage, student loans)13%71
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 415?
78% assigned to a telco
- 75% Landline
- 25% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (415)200- | Landline | Ip Horizon |
| (415)201- | Landline | Utility Telecom Group |
| (415)202- | Landline | Pacific Bell |
| (415)203- | Wireless | New Cingular Wireless Pcs |
| (415)204- | Landline | Utility Telecom Group |
| (415)205- | Wireless | New Cingular Wireless Pcs |
| (415)206- | Landline | Pacific Bell |
| (415)207- | Wireless | Usa Mobility Wireless |
| (415)208- | Wireless | Usa Mobility Wireless |
| (415)209- | Landline | Frontier California |
Frequently Asked Questions about the 415 Area Code
Who called me from a 415 number?
A 415 number is assigned to San Francisco, California, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 415 code to look nearby, so a 415 number doesn't prove the caller is local. Recently, 539 unwanted-call complaints were reported to the FTC for numbers showing the 415 code (50% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 415 a scam area code?
No area code is a scam on its own. 415 is a normal, officially assigned code for San Francisco, California. Spam callers spoof local codes to raise the odds you answer, so 415 on your caller ID says nothing about who is really calling. Recently, 539 unwanted-call complaints were reported to the FTC for numbers showing the 415 code (50% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 415 area code?
Repeated calls from different 415 numbers are usually spoofing: a robocaller rotates through 415 numbers so each call looks local and slips past simple blocks. Recently, 539 unwanted-call complaints were reported to the FTC for numbers showing the 415 code (50% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 415 number?
If you aren't expecting a 415 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 415 area code?
Block a single 415 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 415 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 415?
Area code 415 covers San Francisco and the surrounding area in California, spanning 32 cities with about 1,171,595 residents. It shares its area with overlay code 628.
Is 415 a real area code?
Yes. 415 is an active code in the North American Numbering Plan, assigned by NANPA and in service for San Francisco, California. A real code can still show up on spoofed spam calls, so treat unknown 415 calls with normal caution.
What timezone is the 415 area code in?
The 415 area code is in the Pacific Time (PT). Because a number can be kept when someone moves or switches to VoIP, a specific 415 caller may not be in that zone.
How do I call a 415 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 415 and the seven-digit number. From a mobile phone you can usually just enter +1 415 followed by the number and let the phone add the exit code for you.