To dial to Vietnam, combine your country’s exit code, Vietnam’s +84 code, and the local number without its leading 0.
Calling someone in Vietnam looks simple, yet exit codes, dropped digits, and mobile prefixes can break the call. This guide gives clear, region-by-region steps so you can dial correctly, manage costs, and avoid the most common mistakes.
Core Rules For International Dialing To Vietnam
Every international call follows three parts in the same order: exit code from your country, Vietnam’s country code, and the local Vietnamese number. Written as a pattern, that looks like: Exit Code + 84 + Local Number (without the first 0).
Vietnam uses an open dialing plan with separate formats for landlines and mobiles. Landlines include an area code, while mobile numbers use network prefixes such as 03, 05, 07, 08, or 09, followed by the subscriber digits.
| Scenario | Dialing Pattern | What To Watch |
|---|---|---|
| General format from any country | Exit Code + 84 + Local Number | Always remove the first 0 in the Vietnamese number |
| Calling a Hanoi landline | Exit Code + 84 + 24 + Subscriber Number | 24 is the area code for Hanoi |
| Calling a Ho Chi Minh City landline | Exit Code + 84 + 28 + Subscriber Number | 28 is the area code for Ho Chi Minh City |
| Calling a Vietnamese mobile | Exit Code + 84 + 9X / 3X / 7X / 8X + Number | Drop the leading 0 from numbers that start with 03, 05, 07, 08, 09 |
| Calling from a hotel phone | Hotel Access Code + Exit Code + 84 + Number | Front desk can confirm the hotel’s outside line code |
| VoIP or calling card service | Service Access Code + Exit Code + 84 + Number | Listen to voice prompts; some services auto add the exit code |
| Calling Vietnam from a mobile app | App Contact Or Full E.164 Number | Apps often store contacts as +84 followed by the full local number |
How to Dial to Vietnam From Major Regions
This section uses common examples so you can apply the same pattern from your phone provider or calling app of choice. The exact digits change, yet the sequence stays the same: exit code, 84, then the local Vietnamese digits without the first 0.
Calling Vietnam From The United States Or Canada
From North America, the standard exit code is 011. The Federal Communications Commission explains this pattern for international calls as 011, followed by the country code, then area or city code, and phone number.
So, if your contact in Ho Chi Minh City gives you the number 028 3822 1234, dial:
- 011 – exit code from the U.S. or Canada
- 84 – Vietnam country code
- 28 – Ho Chi Minh City area code
- 3822 1234 – subscriber number
Your full dialing string becomes: 011 84 28 3822 1234.
A mobile number such as 0912 345 678 turns into 011 84 912 345 678. The first 0 disappears once you add the international prefix.
Calling Vietnam From Europe, Including The UK
Many European countries, including Germany, France, and the UK, use 00 as the exit code. To reach a Hanoi landline with the local number 024 3765 4321, dial:
- 00 – common European exit code
- 84 – Vietnam country code
- 24 – Hanoi area code
- 3765 4321 – subscriber number
In this case, the full string is 00 84 24 3765 4321. German call guides use the same pattern when showing how to call Hanoi or other Vietnamese cities.
Calling Vietnam From Australia, New Zealand, Or Asia
Australia and New Zealand normally use 0011 as the international access code. Some Asian countries use 001 or 008, depending on the carrier. When in doubt, check your provider’s website or the customer service number on the back of your SIM card.
From Australia, a call to a Da Nang mobile number written locally as 0905 111 222 would look like:
- 0011 – Australia exit code
- 84 – Vietnam country code
- 905 111 222 – mobile digits without the leading 0
The pattern still matches the same rule: exit code, 84, then the local number stripped of its first 0.
Vietnamese Number Formats And Area Codes
Official dialing information for Vietnam describes an open plan with an international prefix of 00, trunk prefix 0, and country code 84. Landlines include a province or city code, and mobiles use several dedicated prefixes tied to different operators.
Landline numbers usually appear in this style: 0XX YYY YYYY. The 0 marks the start of a domestic long-distance call inside Vietnam, and the next two or three digits give the area. When you dial to Vietnam from abroad, you drop that 0, then keep the rest of the digits after adding 84.
Mobile numbers often use prefixes like 03, 05, 07, 08, or 09, followed by seven more digits. A domestic mobile number such as 0987 654 321 turns into +84 987 654 321 in international format.
Example Conversions From Local To International Format
These examples show how local Vietnamese numbers change once you turn them into international dialing format for calls from abroad.
- Local Hanoi office: 024 3512 0000 → dial as +84 24 3512 0000
- Local mobile: 0912 345 678 → dial as +84 912 345 678
Using Mobile, VoIP, And eSIM For Vietnam Calls
Traditional carriers still work well for business calls, yet many travelers prefer apps or eSIM data plans for lower costs. The basic dialing rules stay the same, whether you punch numbers into a physical keypad or tap a contact in a VoIP app.
Using A Mobile Phone Or SIM Card
Most networks let you dial +84 instead of a specific numeric exit code. On modern smartphones, tap and hold the 0 key until it turns into a plus sign, then enter the rest of the number. Telecom resources describe this as the standard E.164 format: plus sign, country code, and full national number.
Using Internet Calling And VoIP Apps
Apps such as Skype, WhatsApp, Viber, or dedicated business VoIP tools can route calls to Vietnamese numbers as long as you feed them a valid international format. Contacts stored as +84 followed by the local digits work across borders and devices.
Some services sell special Vietnam calling bundles or credit with reduced per-minute rates. Before a long call, open the app’s rate table and check the price for calls to Vietnam landlines and mobiles, since those rates may differ.
Costs, Time Zones, And Call Planning Tips
International calls to Vietnam vary in price by country and service. Regulators such as the U.S. Federal Communications Commission advises checking basic rates and surcharges first.
Traditional carriers might charge separate rates for landlines and mobiles in Vietnam, while VoIP services usually list a single per-minute fee. Calling cards can still make sense if you place long calls from a landline, yet many people now save money by pairing a modest data plan with an internet calling app. These basics make How to Dial to Vietnam feel simple.
| Call Type | Typical Cost Pattern | Planning Tip |
|---|---|---|
| Carrier voice call to landline | Per-minute international rate, often cheaper than mobile | Check your plan for discounted country lists |
| Carrier voice call to mobile | Per-minute rate plus possible mobile surcharge | Look for notes on wireless surcharges to foreign mobiles |
| VoIP app call over Wi-Fi | Low per-minute rate or included in app credit | Use strong Wi-Fi to avoid dropouts and repeats |
| VoIP app call over mobile data | Uses megabytes from your data plan | Monitor roaming data usage and throttle video features |
| Calling card from landline | Access fee plus discounted minutes to Vietnam | Read the fine print on connection fees and expiration |
| Business conference bridge | Toll or toll-free access, then bridge charges | Offer both local Vietnamese numbers and VoIP links |
| App-to-app internet call | Often free between users on the same platform | Confirm both sides have the app installed and updated |
Safety, Spam Calls, And Number Spoofing
International dialing to Vietnam sometimes intersects with security topics such as spam calls and caller ID spoofing. Telecom regulators in several countries now push phone providers to block foreign calls that pretend to come from local numbers, since those patterns show up often in fraud cases.
For callers inside Vietnam, the local emergency numbers are 111 for child protection, 113 for police, 114 for fire, and 115 for first aid. Share these with friends or relatives who live there so they always know which number to use in an urgent situation.
Final Check Before You Dial Vietnam
By now, the pattern behind How to Dial to Vietnam should feel familiar: exit code, 84, then the local number without its first 0. Once you store contacts in international format such as +84 24… or +84 912…, your phone, softphone, or calling app can route calls from almost anywhere.
Before each important call, confirm three things: that you have the correct exit code for your current country, that you removed the leading 0 from the Vietnamese number, and that your plan or app uses a rate you can live with.
Use the same pattern for every call, then store each contact in full +84 format. After that, dialing Vietnam is as easy as tapping a name on your screen.