Call San Francisco from Singapore

To make an international call to San Francisco, CA from Singapore, 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 locations in Singapore.

When dialing San Francisco from Singapore, it makes no difference whether you are calling from a Singapore 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.

Note that Singapore has a fairly complicated approach to IDDs with specific carriers and even specific calling plans having unique codes. See details below.

For further information:

Phone Number Formats to Call San Francisco from Singapore

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 Singapore, you need to dial a phone number formatted as follows:

Call San Francisco Landline Phone from Singapore

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

Call San Francisco Mobile Phone from Singapore

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

* In Singapore, specific carriers and service plans have unique IDDs - see details below. All calls to Malaysia via all carriers use the prefix 020 without the Malaysia country code.

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

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Dialing Steps to Call San Francisco from Singapore

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

1. Dial Singapore int'l access code / IDD:  xxxx*

Individual carriers and even individual calling plans have unique IDDs in Singapore. The following is a partial list of IDDs and their associated service plans (if any) for the most popular Singapore carriers. Most IDDs are 3-digits long, some are 4-digits. Please confirm with your carrier before dialing.

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.

Carrier Carrier access code
SingTel 001 - IDD001
012 - FaxPlus
013 - BudgetCall
019 - v019
StarHub 008 - IDD008
018 - IDD018
M1 002 - Premier IDD
021 - IDD021
Zone1511 1511
Calls to Malaysia (all carriers) 020*

* Calls to Malaysia do not require use of a country code.

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

2. 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.

3. 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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