Vietnam phone number format and +84 country code
Use the 84 country code, written as +84, when calling Vietnam from another country. This may also be called the country calling code, dial code, phone prefix, or international prefix. Check the number format, confirm whether the destination is mobile or landline, then review the Voipfibre rate before placing the call.
Use Voipfibre after checking the number format
+84 + area or mobile prefix without domestic leading 0 + subscriber number
How to dial Vietnam
Start with +84, add the correct area or mobile prefix, then enter the local number. Use the format shared by the person or business you are calling when available.
Country code
+84
Use the 84 country code before the Vietnam number when calling internationally.
Number format
Domestic 0 + area or mobile prefix + subscriber number
Vietnam uses country code +84. Remove the domestic leading 0 from area and mobile prefixes in international format, so Hanoi 024 becomes +84 24, Ho Chi Minh City 028 becomes +84 28, and a 091 mobile becomes +84 91.
Before calling
Check Vietnam mobile and landline rates before calling because prices can differ by number type.
Check Vietnam ratesFormat the number before checking the rate
These steps work whether you are calling from India, United States, Australia, Singapore, Canada or another country.
- 1
Start with +84
Vietnam uses the 84 country code, written as +84 in plus format. Put it at the beginning of the number when calling internationally.
- 2
Add the area or mobile prefix
Vietnam uses country code +84. Remove the domestic leading 0 from area and mobile prefixes in international format, so Hanoi 024 becomes +84 24, Ho Chi Minh City 028 becomes +84 28, and a 091 mobile becomes +84 91.
- 3
Complete the local number
Use the remaining local digits in this pattern: Domestic 0 + area or mobile prefix + subscriber number.
- 4
Check the rate before calling
Check Vietnam mobile and landline rates before calling because prices can differ by number type.
Mobile and landline examples
Examples are for formatting guidance only. Always confirm the exact number with the person or business you are calling.
Mobile example
+84 91 234 5678
Useful when you are calling a Vietnam mobile number.
Landline example
+84 24 1234 5678
Useful when you are calling a Vietnam landline or area-based number.
What to check before using the 84 country code
Country codes are only one part of an international phone number. Exit codes, area codes, mobile prefixes, and local numbering rules can change how the final number should be dialed.
Exit code or plus format
On a mobile phone, the plus sign usually replaces exit codes such as 00 or 011. From a landline, use the international access code for the country you are calling from, then 84.
Country calling code, dial code, or prefix
People may call 84 the Vietnam country code, country calling code, phone code, dial code, or international prefix. In each case, use +84 before the rest of the Vietnam number.
Mobile phone or landline
After +84, the next digits may be an area code, mobile prefix, service prefix, or local number. Check whether you are calling a mobile phone or landline because rates can differ.
Vietnam country code +84
Vietnam uses +84 as its country, phone, dialing, calling, international, and ISD code.
Drop the domestic 0 after +84
When writing a Vietnam number internationally, use +84 followed by the area or mobile prefix without the domestic leading 0. Keep the rest of the subscriber number exactly as supplied.
Hanoi and Ho Chi Minh City area codes
Hanoi uses 024 domestically and becomes +84 24 internationally. Ho Chi Minh City uses 028 domestically and becomes +84 28. Da Nang uses 0236 domestically and becomes +84 236.
Vietnam mobile numbers
For Vietnamese mobile numbers, add +84 and remove the domestic leading 0 from the mobile prefix. Common examples include +84 91, +84 98, +84 32, and +84 56.
German and French Vietnam code terms
German and French terms such as Vorwahl, code telephone, and prefix telephone usually need the same +84 country code and drop-the-0 international format.
Calling from Vietnam
When calling from Vietnam, start with the destination country code: +65 for Singapore, +61 for Australia, or +1 for the US and Canada.
Common ways people call Vietnam
Use the country code first, confirm the number type, then check the Voipfibre rate before placing the call.
What country, phone, or dialing code does Vietnam use?
Vietnam uses country code +84. Dial +84 followed by the Vietnam area or mobile prefix without the domestic leading 0, then the subscriber number.
Open Vietnam guideWhat is the Vietnam phone-number format?
Use +84 followed by the area or mobile prefix without the domestic trunk 0. Hanoi 024 becomes +84 24, Ho Chi Minh City 028 becomes +84 28, and mobile 091 becomes +84 91.
Open Vietnam guideWhat are the Hanoi and Ho Chi Minh City area codes?
Hanoi uses 024 domestically and +84 24 internationally. Ho Chi Minh City uses 028 domestically and +84 28 internationally.
Open Vietnam guideHow do I call Vietnam from abroad?
Use Vietnam country code +84, remove the domestic leading 0 from the Vietnamese area or mobile prefix, then dial the remaining subscriber number. Check the Vietnam rate before calling.
Open Vietnam calling guideHow do I call the US, Canada, Australia, or Singapore from Vietnam?
Use the destination country code first: +1 for the US or Canada, +61 for Australia, and +65 for Singapore, then add the destination number in international format.
Check dialing codesAfter checking the country code
Continue with rates, app calling, and related dialing guides.
Popular guides for calling Vietnam
Use the +84 format first, then compare free app calling and regular phone-number calling options from common origin countries.