Hong Kong: SMS Guidelines

SMS Guidelines for Hong Kong including MCC and Dial Code. Get more messaging details here.

Telnyx Engineering avatar
Written by Telnyx Engineering
Updated over a week ago

SMS Guidelines for Hong Kong

MCC: 454
Dial Code: 852

Alphanumeric Sender ID registration is required. All messages from unregistered Sender IDs will be rejected.

Information on Alphanumeric Sender ID registration:

Please provide the details below along with a copy of your Business Registration to alpha_sender_id@telnyx.com:

1) SenderID to be registered

2) Message/Content type

3) Message/Content example

4) Company name (and Brand name if different)

5) Website of brand or company

6) Company Country of origin

7) Expected volumes per month

8) Email linked to your Telnyx account

Companies must have a valid business case for the requested Alphanumeric Sender ID. If the relationship between your company/brand and the requested Alphanumeric Sender ID is not clear, please provide additional supporting documentation detailing your business case.

Additional recommendations:

Consent (Proof for Opt-in) should be obtained before sending any communications, i.e. Marketing SMS

Traffic should include clear Opt-Out options.

It is common for handsets in Hong Kong to follow the “2 numbers 1 SIM Card” model, with one Chinese number (+86) and one HK number (+85), this can cause delivery issues.

Please make sure to always refer to our Acceptable Use Policy for Messaging.

For more information on Alpha Sender ID registration kindly reach out to alpha_sender_id@telnyx.com.

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