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US area code · California

415 area code

Where the 415 area code is, its overlay and how to dial a +1 415 number from anywhere.

CoversSan Francisco, CaliforniaTime zonePacific (PT)TypeOverlay
Quick answer

The 415 area code is in San Francisco, California, United States (Pacific (PT)). To call from abroad: +1 415 555-0123. It is an overlay, so all 10 digits are dialled.

StateCalifornia
Main areaSan Francisco
Time zonePacific (PT)
TypeOverlay
10-digit dialingRequired
In service since01-Jan-1947

The 415 area code is a geographic North American Numbering Plan (NANP) code covering San Francisco, California. It has been in service since 01-Jan-1947 and sits in the Pacific (PT) time zone.

Overlay 415 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

415628

How to dial a 415 number

From abroad+1 415 555-0123
Within the US / Canada1 415 555-0123
Locally (same area)415 555-0123

Cities in the 415 area code

A 415 number is usually in one of these places in California — 2 counties.

Novato MarinSan Anselmo MarinSan Rafael MarinSouth San Francisco San Mateo

Other California area codes

209213279310323341350357369408424442510530559562

Frequently asked questions

Where is the 415 area code?

The 415 area code is in San Francisco, California, United States (Pacific (PT)).

Is 415 an overlay area code?

Yes. 415 overlays the same region as 628, so callers dial all 10 digits.

Do I have to dial 10 digits for 415?

Yes — dial the area code plus the seven-digit number.

How do I call a 415 number from another country?

Dial your exit code (or +), then 1, then 415, then the number: +1 415 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 415 number does not pinpoint a street or ZIP code.

Number holders in area code 415

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 800 prefixes are in use in 415, shared by 37 companies. The largest holders:

CompanyPrefixesShare
Pacific Bell32741%
New Cingular Wireless PCS, LLC678%
Cellco Partnership Dba Verizon Wireless486%
T-Mobile USA, Inc.456%
Onvoy, LLC405%
Mcimetro Access Transmission Services LLC365%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 415 numbers

Reports to the FTC, last 30 days
525
Recorded messages or robocalls
65%
Rank among area codes
#184 of 670
Most reported subjects
Other (216)
Reducing your debt (credit cards, mortgage, student loans) (150)
Calls pretending to be government, businesses, or family and friends (75)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

All US area codes United States +1 Map of area code 415 — cities & rate centres

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