About Vietnam Phone Numbers

Vietnamese mobile numbers start with 03-09, followed by 8 digits (total 10-11 digits). Different prefixes indicate different mobile network providers. Mobile and landline prefixes overlap in some ranges.

How to Dial Vietnam Phone Numbers

To call a Vietnam phone number, the exact format depends on where the call starts. Domestic mobile calls usually keep the leading 0, while international calls to Vietnam use the +84 country code instead.

• Within Vietnam: Dial the full national number, including the leading 0 for standard domestic calls.
  Example: 091 234 5678
• From abroad to Vietnam: Dial +84 followed by the national number without the leading 0.
  Example: +84 91 234 5678
• From Vietnam to other countries: Dial 00, then the country code, then the full phone number.
  Example: 00 1 212 555 0123

Note: Vietnamese domestic mobile numbers commonly begin with 0, but that prefix is dropped in international format.

Phone Number Structure

This table breaks down the example number shown for Vietnam.

Special Cases

Some numbers and prefixes in Vietnam have special rules or reserved uses.

• Emergency Numbers

  112113114115

  Vietnam uses 113 for police, 114 for fire and rescue, and 115 for medical emergencies, while 112 is being used as a national rescue and emergency coordination hotline in some nationwide contexts.

• Child Protection Hotline

  111

  111 is a dedicated child protection hotline in Vietnam and operates separately from the standard police, fire, and ambulance emergency numbers.

• 1800 and 1900 Service Numbers

  18001900

  Vietnam commonly uses 1800 for toll-free customer-service access and 1900 for service hotlines that may involve additional charges. These are special non-geographic service ranges.

Validation Regex

^\+84[3-9]\d{8}$|^0[3-9]\d{8}$

Code Examples

CSS Masking Format

Use this CSS mask to automatically format phone number inputs:

input[type="tel"] {
  mask: 000 000 0000;
  mask-image: none; /* Fallback */
}

Other Countries