Top 3 ways to call from Japan to Vietnam at the most economical cost

You have just come to work and live in Japan but do not know How to call from Japan to Vietnam? In this article, T-connect will provide detailed instructions on how to make phone calls from Japan to Vietnam, related costs and important notes when making international calls, helping you stay connected with your family even when living and working in the land of cherry blossoms.

ways to call from Japan to Vietnam
Ways to call from Japan to Vietnam

Top 3 ways to call from Japan to Vietnam

There are many ways to make phone calls from Japan to Vietnam, from using mobile phones, landlines to VoIP applications or international phone cards. Below, T-connect will analyze each method in detail so that you can choose the most suitable way.

1. Call by phone

This is a traditional method but is still used by many people, especially in emergencies or when there is no internet connection.

Call from Japan to Vietnam by phone
Calling from Japan to Vietnam by phone is especially useful when there is no internet or in an emergency.

Call from mobile phone

To call from a mobile phone in Japan to Vietnam, you need to follow the syntax:

  • With AU network: 001 010 + 84 + recipient's phone number
  • With SoftBank network: 010 + 84 + recipient's phone number

Note: remove the first 0 in the recipient's phone number

For example: If you want to call 0123456789 in Vietnam with SoftBank network, just dial: 01084123456789.

Using mobile services to make international calls is often quite expensive. Therefore, you need to carefully check the international package provided by the network operator before making a call.

Call from landline

If using a landline in Japan, the dialing syntax would be as follows:
010 + 84 + Vietnam area code + recipient phone number.

ProvincesArea codeProvincesArea codeProvincesArea code
An Giang296Ha Giang219Ninh Thuan259
BA Ria Vung Tau254Ha Nam226Phu Tho210
Bac Lieu291Ha Noi24Phu Yen257
Bac Kan209Ha Tinh239Quang Binh232
Bac Giang204Hai Duong220Quang Nam235
Bac Ninh222Hai Phong225Quang Ngai255
Ben Tre275Hau Giang293Quang Ninh203
Binh Duong274Ho Chi Minh28Quang Tri233
Binh Dinh256Hoa Binh218Soc Trang299
Binh Phuoc271Hung Yen221Son La212
Binh Thuan252Khánh Hòa258Tay Ninh276
Ca Mau290Kien Giang297Thai Binh227
Cao Bang236Kon Tum260Thai Nguyen208
Can Tho292Lai Chau213Thanh Hoa237
Da Nang236Lam Dong263Hue234
Dak Lak262Lang Son205Tien Giang273
Dak Nong261Lao Cai214Tra Vinh294
Dien Bien215Long An272Tuyen Quang207
Dong Nai251Nam Dinh228Vinh Long270
Dong Thap277Nghe An238Vinh Phuc211
Gia Lai269Ninh Binh229Yen Bai216
Area code table of provinces and cities in Vietnam

For example: To call the landline number 123456789 in Ha Nam (area code 226), just dial 01084226123456789.

Some points to note:

  • Depending on the landline, the international exit code may be 0033 010 instead of 010.
  • Calling rates from landlines are often higher, especially without using promotional plans.

2. Make calls via Voice over Internet Protocol (VoIP) applications

With the development of technology, Internet calling applications such as Skype, Viber, WhatsApp, Messenger are becoming more and more popular. This is an economical and easy-to-use option, especially suitable for young people or smartphone users.

Call from Japan to Vietnam via Messenger
Messenger makes it easy to call from Japan to Vietnam

Advantages of VoIP applications:

  • It's free when both parties use the app and have an Internet connection.
  • Easily download from Apple Store or Google Play Store.

Limitations of VoIP applications:

  • Both parties are required to have a stable internet connection.
  • Sometimes call quality is unstable, especially when the network connection is weak.

For example: If you want to video call your family via Messenger, you just need to connect to the Internet, open the app and make a call.

3. Buy international calling cards

Another way to call from Japan to Vietnam is to use an international calling card. This method is especially useful for those who do not use the Internet or VoIP applications.

International calling card
Brastel – prepaid card for making domestic and international calls in Japan.

How to use calling card to make calls

International calling cards have detailed instructions on how to make a call on the back of the card. Just follow these steps:

  • Enter the service code printed on the card.
  • Enter Vietnam country code (84).
  • Enter the area code (for landline) or mobile phone number (omit the first 0).

For example: To call mobile number 0364063069 from Japan, you dial service code +84 + 364063069.

Where to buy calling cards in Japan

You can buy international calling cards at Combini (convenience stores) such as FamilyMart, 7-Eleven, Lawson… Or you can also order through telecommunication companies in Japan. Smartpit cards are the most popular and easy to use.

Advantages of international calling cards:

  • No internet connection required.
  • Calls can be made from a variety of devices, such as mobile phones and computers.

Limitations of international calling cards:

  • The cost of purchasing international cards and exit codes can sometimes be quite complicated.
  • It is necessary to carefully study the syntax and usage of each type of card.

Cost of calling from Japan to Vietnam

Mobile call costs

International call rates through Japanese mobile carriers like AU and SoftBank are often high, especially if you don't subscribe to an international calling plan.

Each carrier has its own price list: Docomo usually costs around 200-300 yen/minute, while Au and Softbank range from 250-350 yen/minute. MVNOs (virtual network operators) like Rakuten Mobile or LINE Mobile usually have lower prices, around 150-200 yen/minute.

Internet call costs

Using VoIP apps is the cheapest way to make calls, as all you need is an internet connection to make free calls. For internet calls, the cost comes mostly from using mobile data or wifi. If you have an unlimited internet plan, calling via apps like Skype, Viber, or Messenger costs almost nothing.

However, if using mobile data, each 1-hour video call can consume around 300-500MB of data, so check your data limit to avoid incurring costs.

Cost of calling via international calling card

International calling cards usually cost between 1000-5000 yen, corresponding to 100-500 minutes of calling depending on the provider. On average, the cost of calling via international cards is around 10-30 yen/minute, significantly lower than calling directly via mobile phone.

Some notes when calling from Japan to Vietnam

  • Cost saving tips:
    • Use VoIP applications when Internet is available.
    • Choose an international calling card that suits your needs and budget.
    • Sign up for preferential international calling packages from network operators.
  • Call time: Please pay attention to the time zone between Japan and Vietnam to avoid calling when your loved one is resting.
  • Call quality: When using VoIP applications, make sure that both parties have a stable Internet connection to avoid call interruptions.
  • International calling regulations: Some carriers in Japan have their own rules regarding syntax or service fees. You should check carefully before calling to avoid additional costs.

There are many ways to make phone calls from Japan to Vietnam, each method has its own advantages and disadvantages. Depending on your needs and conditions, you can choose to call via mobile, VoIP application or international calling card. Always pay attention to the cost and quality of the call to ensure effective communication.

If you are living in Japan and need to find a quality SIM card for communication, don't forget to visit T-connect. As the No. 1 telecommunications company for Vietnamese people in Japan, buying a SIM card and using telecommunications services in Japan has never been easier! From calling SIM cards to full-capacity data SIM cards, T-connect is always ready with "hot deals"extremely great with 100% Vietnamese customer service support. What are you waiting for without visiting T-connect?

T-Connect Icon NEW ARTICLES
T-connect & DCOM signed a cooperation agreement to enhance digital experiences for the Vietnamese user community in Japan.

On November 17, 2025, T-connect & DCOM officially signed a [...]

ANSWERS TO FREQUENTLY ASKED QUESTIONS WHEN PAYING FOR MY T-CONNECT WITH DCOMPAY

T-Connect officially cooperates with DCOM, launching DCOMPay payment method [...]

T-CONNECT CUP 2025 FOOTBALL TOURNAMENT REGULATIONS – CELEBRATION OF T-CONNECT'S 6TH ANNIVERSARY

The T-connect Cup 2025 football tournament is one of the sporting events [...]

Should I stay in Japan or return to Vietnam? 5 perspectives to help you make the right choice

After many years of studying and working in Japan, many people [...]

Which apps should Vietnamese people in Japan download? 15 essential apps when in Japan 

Living, studying or working in Japan always comes with many [...]

5 tips to ship goods from Vietnam to Japan cheaply and safely

The demand for shipping goods from Vietnam to Japan is increasing, especially [...]

What do you need to prepare when converting your Japanese driver's license to Vietnam's? 7 important documents

While living and studying in Japan, many Vietnamese people have [...]

How does Japan handle waste? 5 waste treatment technologies in Japan that surprise the world

Japan is known as a country with a waste management system [...]

Leave a comment

Your email will not be displayed publicly. Required fields are marked *

Facebook Messenger