How to Call the USA from Singapore? Dialing Steps & Cost
Calling the United States from Singapore can be confusing, especially when you’re not familiar with the international dialing codes. Whether it’s for business, connecting with family, or even making personal calls, dialing errors such as incorrect country codes or prefixes can result in failed connections and frustration.
The good news is that once you understand the right steps and the dialing process, calling the USA from Singapore becomes simple and quick.
In this guide, we’ll explore how to call the USA from Singapore, highlight the best time to connect, and provide tips on cost-effective alternatives for international calling.
Key Highlights:
- To call the USA, dial Singapore’s exit code 001 (or +), followed by the USA’s country code 1, the area code, and the subscriber number.
- The best time to reach someone in the USA is typically during business hours from 9:00 AM to 5:00 PM (local US time).
- The cost to call the U.S. from Singapore varies depending on your service provider and plan.
- The cheapest ways to call the USA from Singapore include virtual phone numbers, calling cards, and online calling apps.

Things to Know When Calling the US from Singapore
Before dialing from Singapore to the US, you must consider the international phone number format to call America. This includes the exit code, country code, area code, and local number. Each component plays a unique role in accurately connecting your call to the US.
Singapore Exit Code
To make an international call from Singapore, you must begin with the Singapore exit code, i.e, 001. This code tells your phone carrier you're making an overseas call. If you're dialing from a mobile phone, you can replace the code with the plus sign (+).
US Country Code
Every country has its own code, and for the US, it’s 1. You must dial this code after the exit code to route your call to the correct network within the United States.
Area Code
The area code is a three-digit number that helps route your call to a specific region within the country. There are over 335 area codes in the USA. Always include this code before the local number to ensure your call reaches the right place.
Here are some popular area codes in the US:
City/Region | State | Area Codes |
New York City | New York | 212, 646, 917, 332, 718, 347, 929 |
Los Angeles | California | 213, 310, 323, 424, 747, 818 |
Houston | Texas | 713, 281, 832, 346 |
Chicago | Illinois | 312, 773, 872 |
Philadelphia | Pennsylvania | 215, 267, 445 |
Phoenix | Arizona | 602, 480, 623, 928 |
Dallas | Texas | 214, 469, 972, 945 |
Jacksonville | Florida | 904, 324 |
Tulsa | Oklahoma | 918, 539, 572 |
Oakland | California | 510, 341 |
Local Number
The local number is the specific phone number assigned to the person or business. In the US, these numbers are usually 7 digits long and directly connect to the recipient's phone.
Call the USA for Less with a Virtual Phone Number
Get a US virtual number and enjoy lower international calling rates from Singapore.
How to Call the United States from Singapore?
To call the US from Singapore, dial the international exit code for Singapore (001), followed by the USA's country code (1), the area code, and the 7-digit local phone number.
US mobile numbers include the area code as part of the full 10-digit number. Hence, the dialing process may slightly vary for landline numbers and cell phone numbers.
How to Dial a US Landline Number from Singapore?
To call a USA landline from Singapore, dial Singapore’s exit code - 001, USA’s country code - 1, followed by the area code and the local landline number.
- Dial 001 (Singapore’s exit code) or + if using a mobile.
- Dial 1, the country code for the USA.
- Dial the area code for the specific city or region you are calling.
- Dial the 7-digit landline number.
For Example: To call a New York landline number (123-4567) from Singapore, you would dial: 001 1 212 123 4567 or +1 212 123 4567. Here, 212 represents the New York area code.
How to Call a US Mobile Number from Singapore?
To call a US mobile number from Singapore, dial 001 (Singapore’s exit code), followed by 1 (the US country code), and then the recipient’s mobile number. The area code is already included in the mobilenumber, so there's no need to dial it separately.
- Dial 001, Singapore exit code or +.
- Dial 1, the USA country code.
- Dial the 10-digit mobile number.
For Example: To call a mobile number in Los Angeles (310 555-1234), you would dial: 001 1 310 555 1234 or +1 310 555 1234. Here, 310 is the area code of Los Angeles.
How to Call a US Toll-Free Number from Singapore?
To call a US toll-free number from Singapore, dial 001 (Singapore’s exit code), followed by 1 (the US country code), and then the toll-free prefix (e.g., 800, 888) along with the 7-digit number. The area code is part of the toll-free prefix, so there's no need to dial it separately.
- Dial 001, which is Singapore’s exit code, or use "+" if dialing from a mobile phone.
- Dial 1, the country code for the USA.
- Dial the toll-free prefix (800, 888, etc.).
- Dial the 7-digit toll-free number.
For Example: To call a toll-free number in the USA (800 123-4567), you would dial: 001 1 800 123 4567 or +1 800 123 4567. Here, 800 is the toll-free prefix.
What Is the Best Time to Call the USA from Singapore?
The best time to call the USA from Singapore is during US business hours, usually between 9:00 AM and 5:00 PM (US time). For personal calls, you can choose a suitable time to call based on what works for your recipient. If you're calling for business, avoid weekends or US public holidays.
The United States spans multiple time zones (Eastern, Central, Mountain, and Pacific). Singapore follows one time zone, Singapore Time (SGT), and is 12-15 hours ahead of the USA. So, the best time to call depends on the region you're reaching.
Here is a table showing the time zone differences between the US and Singapore, along with the best time to call.
USA Time Zone | Time Difference with Singapore | Best Time to Call from Singapore |
Eastern Daylight Time (EDT) | 12 hours ahead | 9:00 PM - 5:00 AM |
Central Daylight Time (CDT) | 13 hours ahead | 10:00 PM - 6:00 AM |
Mountain Daylight Time (MDT) | 14 hours ahead | 11:00 PM - 7:00 AM |
Pacific Daylight Time (PDT) | 15 hours ahead | 12:00 AM - 8:00 AM |
How Much Does It Cost to Call the USA from Singapore?
When calling the USA from Singapore, the cost can vary depending on several factors, such as your phone provider, the type of call, and the plan you have. Traditional mobile calls can be pricey, but some providers offer international plans to help lower the cost.
Here are some popular mobile carriers in Singapore, along with their calling rates from Singapore to the US.
Provider | Cost per Minute |
Singtel | $0.24 |
M1 | $0.30 - $0.47 |
StarHub | $0.24 |
Cost-Effective Alternatives for Calling the USA from Singapore
The cost-effective options to call the USA from Singapore include virtual phone numbers, calling cards, and online calling apps. These options help reduce the cost of international calls, especially for frequent callers.
1. Calling Apps
Apps like WhatsApp, Viber, Google Voice, and Zoom allow you to make calls over the internet, helping to lower phone service costs. These calls are usually free if both you and the person you're calling use the same app and have an internet connection.
2. Virtual Phone Numbers
VoIP Services like Calilio provide virtual phone numbers, which allow you to make internet-based calls to the USA at very low rates. These numbers work without the need for a physical phone line, and often come with flat-rate plans or low per-minute charges. It makes them a great option for frequent international callers.
3. Calling Cards
International calling cards are a classic and cost-effective way to call the USA. These cards offer better rates than direct dialing and are available for purchase at stores or online. It's easy to use too. Simply dial the access number and PIN before entering the phone number to call.
Conclusion
Calling the USA from Singapore doesn’t have to be a complex or expensive task. By understanding the correct dialing sequence, considering the time differences, and choosing the right service provider, you can ensure successful, affordable connections every time. Whether you opt for traditional carriers, VoIP services, or internet calling apps, there are numerous solutions to suit your needs and budget.
Frequently Asked Questions
Can I use a US phone number while in Singapore?
Yes, you can use a US phone number in Singapore by using a virtual number through a VoIP service. This allows you to make and receive calls at US rates while in Singapore, without incurring high international roaming charges.
Are there any apps I can use to call the USA from Singapore for free?
Can I use my regular mobile plan to call the USA?
Are toll-free numbers in the US really free when calling from abroad?

Still have questions?
Can’t find the answer you’re looking for? Please chat with our friendly team.
Stay in the loop
Get the latest call insights, trends, and updates delivered straight to your inbox.
By subscribing, you agree to receive updates from Calilio.
You can unsubscribe anytime.
Enter the World of AI Business Phone System with Calilio
Improve your business operation with Calilio's advanced virtual phone system. Join today for a better way to connect.
Phone numbers
Get International Phone Numbers
Singapore
|Australia
|New Zealand