Cheap Calls to Vietnam
Dial Code +84
Dial Vietnam (+84) from any browser at low per minute rates. You only add a number of your own when you also want to receive inbound calls.
The essentials
- Outbound: Pay by the minute, no dedicated number required.
- Inbound: Needs a US/Canada digital number ($2.14 to $5/month).
- No apps: Runs in Chrome, Safari, Edge, and Firefox.
How calling Vietnam works
- Outbound calling: Reach Vietnam right away at low per minute rates. No dedicated number required.
- Inbound calling: Taking calls in your browser needs a unique US or Canada digital number ($2.14 to $5/month).
- App-free: Runs straight inside Chrome, Safari, Edge, or Firefox.
Dialing Vietnam from San Jose Step by Step
Reaching Vietnam takes only a moment. Walk through these steps to connect with landlines and mobiles from the USA.
US Exit Code
Punch in 011. On Intercalling or a mobile, the + shortcut works in its place.
Vietnam Code (+84)
Add +84 to connect to Vietnam from the USA.
Drop Leading Zero
From outside the country, drop the opening 0 on Vietnamese numbers. For instance, domestic 0912 345 678 turns into +84 912 345 678.
Sample Numbers
An international call to Vietnam is +84 followed by the area or mobile prefix once the leading zero is gone.
Vietnam City Codes
Area and city codes you will use most for Vietnam's major cities.
| City | Region | Area Code |
|---|---|---|
| Hanoi | North | 24 |
| Ho Chi Minh City | South | 28 |
| Da Nang | Central | 236 |
| City | Region | Area Code |
|---|---|---|
| Hai Phong | North | 225 |
| Can Tho | Mekong | 292 |
| Nha Trang | Central | 258 |
Calling Vietnamese Mobiles from Abroad
Inside Vietnam, mobile prefixes begin with a 0. On international calls, that 0 comes off.
Drop the Zero
Domestically a mobile number opens with 0. Calling from San Jose, take the 0 off and put +84 in front instead.
No Domestic Carrier Codes
Carrier selection codes are not needed from the USA. Just use country code +84, then the area or mobile prefix and the number.
Call Vietnam from San Jose right in your browser
Intercalling bridges your browser to the PSTN, so calls to Vietnam land at low per minute rates with no app to install. Lean on the platform for dependable voice, AI help during calls, and live call analytics.
- Dial straight from Chrome, Safari, or Firefox
- Hands free Intercalling for inbound and outbound voice
- Crisp live audio with real-time transcription and suggested replies
- Run virtual numbers across 190+ countries
Global Reach
Connect to any city in Vietnam from San Jose over a browser-based line.
Secure
Encrypted voice paths and enterprise-grade dependability for business calls.
Instant
Be on a call within seconds. No phone system changes required.
Browser First
Place and answer PSTN calls right from your web browser, powered by WebRTC and Twilio behind the scenes.
Frequently Asked Questions
What is the Vietnam country code?
Vietnam's country code is +84. Enter it after the US exit code, or use + on VoIP clients.
Do I need an app to call Vietnam from San Jose?
No. Intercalling runs in your browser. Sign in and start dialing without installing any software.
How do I dial a mobile number in Vietnam?
Strip the leading 0 off the domestic number and prefix +84. So domestic 0912 345 678 becomes +84 912 345 678.
Can Intercalling handle business calling workflows?
Yes. Intercalling backs virtual numbers, inbound and outbound workflows, and real-time analytics for teams and contact centers.
Set to start calling Vietnam from San Jose?
Create an account and make your first browser call within seconds. Nothing to download, no PBX to reconfigure.

Call from any browser
No app and no SIM. Place the call from your computer or phone in seconds.

Low rates to 190+ destinations
Clear per minute pricing, shown before you dial. Pay as you go, no monthly fee.

One balance, every device
Start on your laptop, continue on your phone, all at the same low rate.