How to Call Vietnam from Your Browser: Country Code +84, Dialing Format and Costs

To call Vietnam from 002call, open the web dialer, enter +84 and the number without its leading 0, and press call. Pay as you go from $0.101 / min, no subscriptions.

Vietnamese number format

A Vietnamese number is +84 followed by the number without its leading 0. The zeros below are placeholders.

Landline (Hanoi):

Mobile:

Hanoi is 24 and Ho Chi Minh City 28. Mobiles have nine digits after +84 and begin with 3, 5, 7, 8 or 9.

Step by step

1. Open the web dialer and sign in.
2. Add credits. You pay as you go, and your credit never expires.
3. Enter the number as +84 followed by the number, without the leading 0.
4. Check the rate. It is shown before you call.
5. Place the call. You are billed from the moment it is answered, in whole minutes.

What it costs compared with roaming

Roaming on a US phone plan is one of the most expensive ways to call Vietnam from abroad. Large US carriers charge $1 to $3 per minute pay as you go, or about $12 per day for a travel pass, however short the call.

Enter your call length, or a number to see its exact rate:

A 30-minute call at Verizon's $1.79 per minute costs $53.70. On 002call it is about $3.02 to a landline or $3.44 to a mobile.

Numbers that start with 1800 or 1900

1800 numbers are free inside Vietnam and usually can't be reached from abroad. Look for a regular +84 number on the organisation's website.

When to call

Vietnam has one time zone, Indochina Time (UTC+7). The cards below show your time and the time in Hanoi.

Vietnam does not change its clocks, so the difference changes only when your country changes its clocks.

Call quality

A browser call needs a steady connection more than a fast one, using roughly half a megabyte to one megabyte of data per minute (an estimate).

• Use Wi-Fi or a good mobile signal.
• Use headphones to avoid echo.
• Switch off a VPN if the audio is choppy or one-way.
• Check the microphone permission if the other person can't hear you.

Frequently asked questions

How much does it cost to call Vietnam from abroad? $0.101 per minute to a landline and $0.115 to a mobile on 002call. Roaming on a US plan typically costs $1 to $3 per minute.

Do I need to install an app? No. 002call runs in your browser.

Does my credit expire? No, and you only pay for the minutes you use.

Do I need an exit code? No. Enter the number with +84.

Do I include the 0 at the start of the number? No. Drop it, so a mobile that starts 09 starts +84 9.

Sources: number format per Vietnam's Ministry of Information and Communications numbering plan; US carrier roaming rates per Verizon, checked 27 October 2026, and AT&T and T-Mobile, checked 12 October 2026. 002call's rates come from its published rate table. Carriers change their rates and they vary by country and plan.