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Vietnam +84

International code · Asia

Key facts

International code+84

International format+84 XX XXXX XXXX

Mobile prefixesXX XXXX XXXX

Mobile length10 digits

Landline format0XX XXXX XXXX

Domestic trunk0

Number ranges & quality

Range	Type	Notes
`03x–09x 开头`	Mobile carrier	越南手机号段（原 09x 为主，后陆续开放 03x–08x）

Intl SMSStable

Virtual-number riskMedium

ID required办卡需身份证明，实名登记严格

越南在两家 AI 平台及 Gemini 的支持列表内。

Sign-up availability

What to expect when signing up for these services with a physical SIM from this country:

ChatGPT Works

Claude Works

WhatsApp Works

Telegram Works

LINE Works

WeChat Works

X Works

TikTok Works

Gemini Works

Applies to every platform: VoIP / virtual numbers and heavily-reused number pools get rejected. Physical SIM only.

Checked 2026-09-12. Platform region policies and number-range allocations change — always confirm against each platform’s official supported-regions list and the carrier’s notices.

Sources：help.openai.com/articles/7947663 · www.anthropic.com/supported-countries · support.google.com/gemini?p=gemini_web_availability

Calling Vietnam from abroad

Dial +84, then the local number with the leading 0 stripped. A Beijing landline 010-1234-5678 is dialed as +84 10 1234 5678.

Generate the full number →

Dialing within Vietnam

For domestic long distance dial 0 first, then the area code. Local calls and mobiles: dial directly.

Elsewhere in Asia

Traveling to Vietnam? Get a SIM card

eSIM providers like Airalo and Holafly charge by the day and work the moment you land. Common picks below:

Affiliate links pending — sign-up under review.