Call San Francisco from Japan

To make an international call to San Francisco, CA from Japan, please follow the dialing steps shown below.

Because US phone numbers are highly standardized, dialing US phone numbers is easy - and the same international dialing procedure applies whether you are calling San Francisco from Tokyo, Yokohama, Osaka, Nagoya, Sapporo, or any other Japan location.

When dialing San Francisco from Japan, it makes no difference whether you are calling from a Japan landline or mobile phone - the dialing procedure is the same (although your rates may vary).

As well, when dialing to the USA, it also doesn't matter if you are calling to a San Francisco landline phone or a San Francisco mobile phone - both types of numbers have the same format and the dialing procedure is the same. Again, rates may vary depending on your plan.

If you are using a calling card, prepaid plan, and other types of services, additional or different dialing steps may be required. As well, extra charges may apply beyond per minute rates, especially when calling to mobile phones in United States. Please check with your provider for details.

For further information:

Phone Number Formats to Call San Francisco from Japan

In the United States, phone number formats are highly standardized with no variation across the country. As well, landline and mobile phone numbers are formatted exactly the same. It is not possible to tell, simply by looking at a US phone number, whether it is a mobile or landline number - and it doesn't matter for dialing purposes.

All US phone numbers are 10-digits long and include a 3-digit area code and 7-digit local subscriber number. Increasingly, the same region may have multiple area codes. Local subscriber numbers are unique within an area code. Please check here for more information on San Francisco area codes.

US phone numbers may be written to include a leading ' 1 '. This ' 1 ' can serve as either the US country code for inbound international calls or as a national direct code for national long distance dialing in the US.

If the San Francisco phone number you have does not contain the full 10-digit phone number, then you'll need to double check to find the correct number.

To make an international phone call to San Francisco from Japan, you need to dial a phone number formatted as follows:

Call San Francisco Landline Phone from Japan

010*  1   aaa  nnn nnnn
access code
area code
landline number

Call San Francisco Mobile Phone from Japan

010*  1   aaa  nnn nnnn
access code
area code
mobile number

* If you are calling from a payphone or your calling plan does not specify an international carrier, you will need to select an international carrier by dialing an additional dialing code. See further details below.

Click here for more on San Francisco landline vs. mobile phone numbers.

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Dialing Steps to Call San Francisco from Japan

To call a San Francisco landline or mobile phone number from Japan, follow this dialing procedure.

1. If needed, dial MYLINE carrier access code

A carrier-specific access code may be used or is required in some cases. See MYLINE / MYLINEPLUS details below

2. Dial Japan int'l access code / IDD:  010*

Note that some mobile operators may not require you to dial an IDD and/or may allow use of substitute characters (such as '+') in lieu of an IDD.

3. Dial US country code: + 1 

If your San Francisco destination phone number starts with a ' 1 ' - e.g., 1 415 454 8180, then this serves as the country code. Don't dial ' 1 ' twice.

4. Dial a 10-digit San Francisco phone number

To reach a San Francisco landline number or a San Francisco mobile phone, dial a 10-digit number as follows:

a. Dial a 3-digit San Francisco area code:  aaa 

b. Dial a 7-digit local subscriber number: nnn nnnn

Some common San Francisco area codes are: 415 , 650 , and 510 . List of San Francisco area codes

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MYLINE / MYLINE PLUS Carrier Access Codes

You will need to dial a MYLINE / MYLINE PLUS carrier access code to make an international call in situations such as the following:

  • if your phone plan does not specify a default carrier
  • if you want to specify a different carrier than your preferred MYLINE carrier
  • if you are calling from a payphone

Here are the MYLINE access codes for several major Japanese international carriers.

Carrier Carrier access code
KDDI 001
NTT Communications 0033
Softbank Telecom 0041, 0061, 0083
Verizon Japan 0071
T-Systems Japan 0080

Due to mergers, new entrants, and other factors, the list above is likely to change frequently. Please doublecheck directly with your provider before dialing.

If your carrier is not listed, click here for the official list of Japan's MYLINE carrier access codes. Or check the list of MYLINE codes in Wikipedia.

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Lookup a San Francisco phone number
San Francisco dialing instructions

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