Vietnam Phone Number Format: Complete Guide to Local, Mobile & International Dialing

A Vietnamese phone number format consists of four elements: the trunk code, country code, area code, network code, and subscriber number. They are specifically designed to direct your call to the designated location.

The DAC code 0 is used when dialing any Vietnam phone number within the country, whether it is a landline or a mobile number. However, the trunk code is omitted and replaced by the country code (+84) in the country’s international phone number format.

The country code for Vietnam is +84. When dialing internationally, you must include this code before the local number.

Area codes in Vietnam vary by region and are usually two or three digits long. For instance, Ho Chi Minh City uses area code 28, whereas Da Nang uses 236. Ensure you enter the right area code to guarantee a successful phone connection.

Some of the popular area codes in Vietnam are:

In Vietnam, mobile numbers begin with a specific prefix (09 or 08) that indicates the telecom provider, like Viettel or Mobifone.

Some of the most commonly used mobile number prefixes in Vietnam are:

The remaining digits of a phone number after the area code are known as subscriber numbers. Subscriber numbers in Vietnam phone number structure typically range from seven to eight digits, depending on whether you're phoning a mobile number or a landline.

Vietnam uses three different types of phone numbers: landline, mobile, and toll-free numbers, each with its distinct format. Additionally, they also have helpline phone numbers for emergencies.

Landline numbers in Vietnam typically begin with an area code, followed by a 7 or 8-digit subscriber number. These numbers are used for fixed-line telephones, generally associated with businesses or residences.

The Vietnamese cell phone number format consists of 10 digits, starting with '0', followed by a two-digit mobile network code (also known as the carrier code), and then a 7-digit subscriber number. These numbers typically begin with specific prefixes such as 09, 08, or 07, which vary depending on the carrier.

Toll-free phone numbers in Vietnam begin with specific prefixes such as 1800 or 1900, and calls to these numbers are free. However, to call a 1800 number from overseas, you must also include your country’s exit code and country code at the beginning of the Vietnamese toll-free numbers.

Emergency numbers in Vietnam generally consist of 3 digits and can be dialed without an area code from any phone within the country.

The primary emergency numbers of Vietnam are:

• Police: 113
• Fire & Rescue: 114
• Ambulance/First Aid: 115
• Lifesaving Services (Search and Rescue for natural disasters, marine incidents): 112
• Child Protection Hotline: 111

A local phone number format in Vietnam typically includes a domestic access code, the area or carrier code, followed by the local subscriber's number.

Here’s how to dial Vietnam locally,

1. Dial 0, a domestic access code.
2. Dial the city area code or mobile prefix.
3. Dial the subscriber number.

Example of a Vietnam Phone Number Format for Domestic Call

Landline Number: 0 24 12345678

• 0 - domestic access code
• 24 - area code for Hanoi
• 12345678 - subscriber number

Mobile Number: 0 90 1234567

• 0 - domestic access code
• 90 - mobile carrier code
• 12345678 - subscriber number

Toll-Free Number: 1800 1234567

• 1800 - Vietnam toll-free prefix
• 12345678 - subscriber number

The phone number format in Vietnam for international calls includes the international access code, Vietnam's country code (+84), the area or mobile network code, followed by the subscriber number.

Here’s how to call Vietnam from abroad,

1. Dial your country's international dialing code (e.g., 011 in North America, 00 in Europe and most other countries).
2. Dial the Vietnam country code (+84).
3. Dial the area code (for landlines) or the mobile network code (for mobile numbers).
4. Dial the subscriber number.

Example of Vietnam Phone Number Format for International Calls

Landline Number: 011 84 24 12345678

• 011 - International dialing code (when calling Vietnam from the US)
• 84 - Vietnam country code
• 24 - Area code for Hanoi
• 1345678 - subscriber number

Mobile Number: 011 84 90 1234567

• 011 - international dialing code (when calling from the US)
• 84 - Vietnam country code
• 90 - mobile carrier code
• 1345678 - subscriber number

Toll-Free Number: 011 84 1800 12345678

• 011 - International access code (when calling from the US)
• 84 - Vietnam country code
• 1800 - Vietnam toll-free prefix
• 1345678 - subscriber number

When making calls to Vietnam, consider Vietnamese time zones and calling costs to ensure your call reaches the appropriate time for your receiver in the most affordable way.

Vietnam operates on a single time zone, known as Indochina Time (ICT), which has a Coordinated Universal Time (UTC) offset of +7 hours. When planning your call, it's essential to be mindful of the time difference between your location and Vietnam to avoid calling at inconvenient hours for the recipient.

For example, Vietnam is usually 11 hours ahead of the US Eastern Time Zone. If you call at 9 AM, it will reach the recipient at 8 PM, which may not be convenient for them. So, always remember to consider time zone differences when scheduling calls.

The cost to call Vietnam typically ranges from 6.9¢ to 20¢ per minute, depending on your provider. International costs are generally higher than local costs. For cost-effective calls, consider using VoIP numbers, which are typically less expensive than calling from traditional phone networks. These numbers allow you to make calls over the internet, providing affordable alternatives to traditional carriers.

You must follow the correct Vietnam phone number format to accurately connect with your contacts in the country. For local calls, you’ll simply dial the area code or carrier code and local subscriber number. For international calls, dial your international access code, Vietnam's country code, before the area code/carrier code,and the local number.
 

Mobile phone numbers in Vietnam have 10 digits, whereas landline numbers have 8 to 10 digits, including an area code.

Mobile numbers in Vietnam always start with 0, followed by a two-digit mobile network code (e.g., 09, 08, 07).

The country code for Vietnam is +84. You must include this code before the local subscriber number when calling Vietnam internationally.