How to call the USA from Vietnam
- From mobile
- +1 xxx xxx xxxx
- From landline
- 00 1 xxx xxx xxxx
From $0.04/min in your browser, no plan needed
How to dial the USA from Vietnam
How to make a call to the USA from Vietnam: dial the exit code, the country code, and the number. Every US number has 10 digits, so a number with fewer digits is missing its area code.
- 00Vietnam exit code
- 1Country code of the USA
- 212New York City
- xxx xxxxLocal number
- From a mobile: +1 xxx xxx xxxx
Paste or type a number here to see how to dial it from anywhere
Example: +1 212 555 0100
- Mobile
- +1 212 555 0100
- Landline
- 00 1 212 555 0100
Main area codes in the USA
The area code comes right after 1, then the local number
- New York City00 121200 133200 164600 1934then 7 digits
- Los Angeles00 121300 131000 1323then 7 digits
- Brooklyn00 134700 1718then 7 digits
- Chicago00 131200 177300 1872then 7 digits
- Houston00 128100 171300 1832then 7 digits
- Phoenix00 148000 160200 1623then 7 digits
- Philadelphia00 121500 126700 1445then 7 digits
- San Antonio00 121000 1726then 7 digits
Before you call the USA
Area codes of big US cities
Each city code follows 00 1 and takes 7 more digits.
- Los Angeles00 1 213
- Chicago00 1 312
- Houston00 1 281
Calling the USA cell phones
Any US number takes 00 1 and 10 digits, on a landline or a cell phone.
Call a USA toll free number
A toll free number dials like any other: 00 1 and its 10 digits. Type it in the dialer above.
- Dial 00
- Dial 1
- Dial the 10-digit number
Calling the USA from Vietnam without an international plan
Suparelay calls the USA for $0.04/min from your browser, with no plan. Without one, carriers in Vietnam charge up to $0.15/min. MobiFone includes the USA in MobiF MF149QT, and viettel sells it as the TK1 add-on, so check your plan first.
| Carrier | Per minute |
|---|---|
SuparelayNo plan neededUp to 3× cheaper | |
 | $0.15 |
 | $0.14 |
 | $0.15 |
Want to call the USA?
Type the number and call from your browser, with no app and no plan
When to call the USA
The time now in the USA, and the best hours to call. The time difference changes by 1 hour when daylight saving time starts in March and when it ends in November.
- Time difference
- March to November: 11 hours behind Ho Chi Minh
- November to March: 12 hours behind Ho Chi Minh
- Daylight saving time
- Clocks change twice a year
- Time zones
- 8
Why a call to the USA fails
From any country, a call to the USA also fails when
- 00 does not work from every country
- The number does not take calls from abroad
Questions
How to call the USA from Vietnam cell phone or mobile?
Dial +1, then the number. It works from any mobile in Vietnam
Are calls to the USA included in Vietnam phone plans?
On some plans. MobiFone includes calls to the USA in its plans. viettel charges less with an add-on or another plan. Without one of these plans, you pay the carrier's rate per minute
How much does it cost to call the USA from Vietnam?
With no plan, carriers in Vietnam charge up to $0.15 a minute. Suparelay charges each started minute, from your browser
How to call New York City from Vietnam?
For New York City, dial 00 1 212, then the 7-digit local number
Do I need to dial 00 to call the USA?
From a landline, yes: dial 00, then 1. From a mobile, type + instead, and the phone adds the exit code
Can I call the USA on my iPhone?
Yes. In the Phone app, press and hold 0 for +, then dial 1 and the 10-digit number. Your plan must allow calls to the USA
Why isn't my call going through to the USA?
The usual causes: 00 does not work from every country and the number does not take calls from abroad. Each one is listed above, with a link to its fix
Free call to the USA: how to call the USA from Vietnam for free?
An app calls for free only when both sides have it. A call to a landline, or to a phone without the app, costs money
How to call the USA from Vietnam on WhatsApp?
WhatsApp and FaceTime call for free, but only someone with the same app. To ring a landline or a phone in the USA without the app, use your phone plan, a calling service, or Suparelay
How to call the USA landline from Vietnam?
From a landline in Vietnam, dial 00 1, then the 10-digit number
When is the best time to call the USA?
Call between 8:00 and 22:00 in the USA. March to November: 11 hours behind Ho Chi Minh. November to March: 12 hours behind Ho Chi Minh
How do I call the USA from Vietnam?
Dial 00 1, then the 10-digit number. From a mobile, +1 works too
What is the code for an international call to the USA?
The country code of the USA is +1