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Unified Messaging
Guide for Sending SMS Messages to Vietnam

Guide for Sending SMS Messages to Vietnam

Review the guidelines and restrictions for sending SMS messages to recipients in Vietnam. This information is for general informational purposes only. This information doesn't, and isn't intended to, constitute legal advice. Consult your own independent legal counsel for guidance on use cases and applicable legal and industry requirements.

Overview
ISO 3166 Country Code VN
International Dialing Code 84
Major Carriers
  • Viettel
  • Mobifone
  • Vinaphone
Alphanumeric Code Support Yes
Unicode Support Yes
Maximum Message Length 160
Concatenation Support Yes
Shortened URLs Yes
Long URLs in Message Yes
Supported Codes
  Short Code International Long Code Local Long Code Alphanumeric Code
Supported No No No Yes
Two-way Support -- -- -- No
Provisioning Time -- -- -- 12–16 weeks
Comments -- -- -- Requires preregistration

SMS Code Provisioning Guidelines

Use a custom alphanumeric code with an international long code set up for one-way transactional sending. Manage opt-outs with a web link or customer preference center. Alphanumeric codes must be associated with the brand, enterprise, product, or service. These codes can include only alphanumeric characters and spaces.

Local enterprises register their alphanumeric code by submitting this information:

  • Sender ID registration form
  • Trademark certificate, if the sender ID differs from the enterprise name
  • Vietnamese trade license
  • Operating license of the Department of Education (for local education brands)

For OTP content, local enterprises must supply this information:

  • Screenshot of all OTP steps from the website or app
  • Screenshot of website footer with company name, address, and business code
  • Certificate of website domain name registration, including a letter of authorization for websites that don't match the brand

International enterprises register their alphanumeric code by submitting this information:

  • Sender ID Registration form that matches the trade license or the signature of a senior executive that appears on the enterprise's website
  • Vietnamese letter of authorization
  • Vietnamese registration form
  • Copy of trade license, business license, certificate of incorporation, or similar document valid for at least one month
  • Copy of a trademark certificate for all of a parent enterprise or holding company's brands, goods, or services

Print all letters on company letterhead. Sign, date, and rubber-stamp all letters.

Restricted Content

You’re responsible for complying with local rules and regulations. To ensure compliance, familiarize yourself with the legislation of the local market. Failure to comply can result in service suspension, cancellation, and potential fines. Vietnam generally forbids content related, but not limited to, these products and services:

  • Adult
  • Gambling
  • Political

Best Practices and Compliance References

Telecommunications in Vietnam are regulated by Ministry of Information and Communication.

 
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