Cheap Calls to Vietnam from $0.19/min

The country code (international dialing code) for Vietnam is +84. To call Vietnam from abroad, dial +84 followed by the national number (in most countries, without its leading zero).

+84 is Vietnam's international country calling code under the ITU E.164 plan — often searched as the "84 area code". Any phone number starting with +84 is a Vietnam number.

From TwinPhone, just type +84 and the number — we connect it. From a landline, dial your exit code, then +84, then the number (in most countries, without the leading 0).

Vietnam's current local time is shown live on this page. Check it before calling so you reach people during waking hours.

No. TwinPhone works directly in your browser — Chrome, Edge, Safari, or Brave. Open the site, add credit, dial +84 and your number, done. No installs, no plugins, no SIM card required.

Yes — we currently rent virtual numbers in the US and Canada, from $3.19/month. Use one as your caller ID so callers see a North American number, or receive incoming calls directly in your browser. Numbers for more countries are on the way.

Every call uses industry-standard transport encryption (TLS + SRTP). We don't sell your data or share your call history. We don't record personal calls (business teams can opt in their own calls).

TwinPhone uses adaptive audio technology that adjusts to your connection quality. Even on slow or unstable Wi-Fi — airport, hotel, coffee shop — your call stays connected and audible.

Calls to Vietnam landlines start at just $0.19/min and mobile at $0.19/min. No connection fees, no hidden charges. Billed per minute in 60-second increments (rounded up to the next minute).