Vietnam Business
Phone Solutions
Ring Vietnam straight from a browser tab at low per minute rates. Nothing to install, and a number is only needed when you also want to take inbound calls.
What you get
- Outbound: Dial out at cheap per minute rates with no dedicated number to buy.
- Inbound: Taking calls needs a US/Canada digital number ($2.14 to $5/month).
- No apps: Runs right inside Chrome, Safari, Edge, Firefox.
Chi tiết dịch vụ gọi doanh nghiệp
- Gọi đi: Kết nối khắp thế giới tức thì theo cước mỗi phút giá rẻ, không phải mua số điện thoại.
- Nhận cuộc gọi: Muốn nhận cuộc gọi ngay trên trình duyệt, bạn cần một số điện thoại kỹ thuật số của Mỹ/Canada ($2.14 to $5/tháng).
- Không cần ứng dụng: Chạy thẳng trên Chrome, Safari, Edge hoặc Firefox.
How to Reach Vietnam by Phone
Use the steps below to get connected to your partners and suppliers in Vietnam.
Exit Code
Start with 00 from the UK or EU, or 011 from the US.
Vietnam Code
Then add 84 for Vietnam.
Area Code
Two or three digits, for example 24 for Hanoi.
Number
Normally 8 digits for landlines and 9 for mobiles.
Dialing a Vietnamese Mobile?
Mobile numbers in Vietnam (Viettel, Vinaphone, Mobifone) run to 10 digits when dialed inside the country (they begin with 0). Calling from overseas means you leave off that first digit, so you drop the leading 0.
Key Area Codes Across Vietnam
Dialing codes for the main business hubs you will call.
| City | Region | Code |
|---|---|---|
| Hanoi | North (Capital) | 24 |
| Ho Chi Minh City | South (Saigon) | 28 |
| Da Nang | Central | 236 |
| Hai Phong | North | 225 |
| Can Tho | Mekong Delta | 292 |
| City | Region | Code |
|---|---|---|
| Nha Trang | South Central | 258 |
| Hue | Central | 234 |
| Vung Tau | South | 254 |
| Dong Nai | South | 251 |
| Binh Duong | South | 274 |
The Real Reason Calls to Vietnam
Cost So Much
Routing a call to Vietnam through legacy carriers such as BT, AT&T, or Deutsche Telekom tends to be pricey, since termination rates across Southeast Asia stay high. Intercalling sends your call over direct VoIP routes, so you skip those old fees and pay a low per minute rate.
- Up to 85% cheaper than standard carrier rates
- Crisp, clear audio to Viettel and VNPT
- Pay as you go with no contract
- Direct links into Hanoi and HCMC
Built for B2B
Tuned for calls to factories, suppliers, and offices.
Time Zone
Vietnam runs on UTC+7, and we keep 24/7 uptime everywhere.
Secure
Encrypted VoIP keeps your business conversations private.
Instant
Nothing to install, just call from your browser.
Frequently Asked Questions
Which country code do I use for Vietnam?
Vietnam's country code is 84. From outside the country, start the number with +84 or 0084.
Should I keep the '0' in the area code?
No. For a number shown as 024 (Hanoi), drop that leading 0 when you call from outside Vietnam, so you dial +84 24...
Why does my Vietnamese number show 11 digits?
It really should not anymore. Back in 2018 Vietnam finished moving mobile numbers from 11 digits to 10 digits locally, so check that you have the current format.
Can I use this for 'dien-thoai-doanh-nghiep'?
Yes. Intercalling is set up for business use (dien-thoai-doanh-nghiep) and carries clear, professional voice over low cost routes.
Ready to call Vietnam for less?
Connect with Hanoi, Da Nang, and HCMC in seconds at pay as you go rates.
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.