Skip to content
Calling the United States from Vietnam might seem daunting at first, but with the right information and tools, the process can be seamless. Whether for personal or professional reasons, this guide will walk you through the steps to efficiently make a call from Vietnam to the US. Calling the United States from Vietnam in 2025 has never been easier with modern VoIP technology, AI-driven call routing, and virtual numbers. Whether for business or personal communication, choosing the right calling method ensures high-quality and cost-effective connections.
This guide explores the best ways to make calls from Vietnam to the USA
The Basics of International Calls
International calls require coordination between multiple elements to ensure a successful connection. Let’s break it down:
- Exit Codes: These signal the start of an international call. Each country has its unique code.
- Country Codes: These identify the destination country you are dialing into.
- Area Codes: Specific to regions within a country, these are crucial for routing the call to the right area.
- Local Numbers: These are the unique numbers assigned to individual phones or services.
Each of these components works in harmony to establish a successful connection. Familiarizing yourself with them can help you avoid common errors such as misdialing or connecting to the wrong region.
Essential Features of an International Calling Solution
| Feature | Advantage |
| AI-Based Call Routing | Reduces call costs and optimizes connections |
| VoIP-Based Calling | Eliminates expensive per-minute charges |
| Virtual Numbers | Enables local call rates for international calls |
| Cloud Call Forwarding | Enhances global business connectivity |
Step-by-Step Process to Call the US from Vietnam
These are the steps to call the US from Vietnam:
1. Dial the Exit Code from Vietnam
Begin by entering Vietnam’s exit code: 84. This code alerts the telephone system that you’re initiating an international call.
2. Enter the US Country Code
Next, add the United States country code: 1. This code connects your call to the US telephone network.
3. Include the Area Code
Each region in the US has a designated three-digit area code. For instance:
- New York City: 212
- Los Angeles: 310
- Chicago: 312
Ensure you know the correct area code for your destination.
4. Dial the Local Phone Number
Finally, input the specific local number you wish to reach. Together, your complete number will look like this: 84-1-[Area Code]-[Local Number]
Example:
If you’re calling a number in New York City with the local number 555-1234, you would dial: 84-1-212-555-1234
AI-Driven Call Routing System
Alternate Methods of Dialing the US from Vietnam
These are some of the alternative methods of dialing the US from Vietnam:
1. Using the Plus Sign (+)
Modern smartphones simplify international dialing by allowing the use of the “+” symbol instead of an exit code.
2. Steps to Use the + Symbol
- Press and hold the zero key (0) on your phone until the + symbol appears.
- Input the rest of the number as follows: +1-[Area Code]-[Local Number]
For instance: To call Los Angeles (area code 310) with the local number 555-6789, you would dial: +1-310-555-6789
3. Using Internet Calling Apps
Applications like Skype, WhatsApp, Google Meet, and FaceTime provide affordable or free alternatives for international calls. These apps require only an internet connection and offer:
- Voice calls.
- Video calls.
- Group conferencing.
Popular apps like FreJun, Viber and Telegram offer similar features with competitive rates for international calls if they use their paid services.
Cost of Making International Calls
The cost of calling the US from Vietnam can vary depending on:
- Service Provider: Different providers have different international calling rates.
- Calling Plans: Opting for international packages can significantly reduce costs.
- Connection Type: Internet-based calls (VoIP) are often cheaper than traditional phone lines.
Examples of Rates:
- Standard providers may charge $0.49 per minute or more.
- Internet-based services can be free or cost as little as $0.02 per minute.
Tips to Reduce Costs:
- Use Calling Cards: Prepaid international calling cards often provide competitive rates.
- Choose VoIP Services: Leverage platforms like Google Voice for low-cost calls.
- Opt for International Plans: Many providers offer packages specifically designed for frequent international callers.
Tips for Making International Calls
These are a few Tips for making International Calls:
1. Check Your Phone Plan
Confirm whether your mobile or landline plan supports international calls. If not, consider upgrading to a plan that does.
2. Confirm Country Rates
Rates can differ between providers. Understanding these rates upfront helps you avoid unexpected charges.
3. Know the Dialing Format
Ensure you follow the correct format. Omit leading zeros when dialing area codes or local numbers.
4. Prepare Calling Credits
If using a prepaid service, ensure you have sufficient credit for the call.
5. Test Internet Connectivity
If using internet-based services, ensure you have a stable connection to avoid disruptions.
Practical Recommendations
Here are some practical recommendations for your business to enhance efficiency, drive growth, and stay competitive in today’s dynamic market:
1. International Calling Cards
Calling cards offer:
- Competitive per-minute rates.
- Flexibility for one-time or frequent use.
- Easy recharges.
2. Voice over Internet Protocol (VoIP) Services
Platforms like FreJun and Zoom allow international calls over the internet. Benefits include:
- Lower costs compared to traditional calls.
- High-quality audio and video.
- Added features like screen sharing (in Zoom).
3. Messaging and Calling Apps
Apps such as WhatsApp, Telegram, and Signal enable free calls, provided both users have the app installed. They also offer end-to-end encryption for privacy.
4. Simplifying International Calls with FreJun
FreJun, a leading call automation and tracking platform, enhances your international calling experience by streamlining processes and ensuring efficiency. Here’s how:
Key Features of FreJun
- Autodial for Efficiency:
- FreJun eliminates manual dialing by automatically connecting you to your desired contact.
- Upload your contact list and let FreJun handle the rest.
- Call Recording and Logging:
- Automatically record and log all calls.
- Reference conversations later for training or clarification.
- Improved Call Pickups:
- Integrates with Truecaller to reduce spam risks.
- Enhances trust for business-related calls.
- Call Performance Analytics:
- Track team performance with detailed analytics.
- Identify areas for improvement and streamline workflows.
- Seamless Integration:
- Integrates with CRMs and workflow tools.
- Centralizes call data for easy access.
Conclusion
Calling the US from Vietnam doesn’t have to be complicated. By understanding the dialing process, exploring cost-effective methods, and leveraging advanced tools like FreJun, you can stay connected effortlessly. Whether you’re managing personal connections or running a business, modern solutions ensure that communication remains seamless and efficient.
Using AI-enhanced VoIP solutions like FreJun, calling the USA from Vietnam has become more affordable, efficient, and high-quality. Whether you are a business professional or an individual, FreJun provides the best telephony services for seamless global communication.
Start making cost-effective calls from Vietnam to the USA with FreJun today! 🚀
Further Reading: 7 Ways to Streamline Your Recruitment Calls and Enhance Efficiency
Subhash is the Founder of FreJun, the global call automation platform. With 8+ years of entrepreneurial experience, FreJun was established to help customers with their voice communication needs. The goal of FreJun is to develop cutting edge technology and solutions to help customers.