SMS Country regulations and restrictions

South Korea

Available countries

There are a few things to bear in mind when sending SMS messages to (and within) South Korea regarding format and pricing. See these and additional sending regulations in the table below, or visit the Korea Communications Commission online for more information.

It’s a good idea to work with a sales advisor to ensure compliance with all SMS regulations. Get in touch now and set up your messaging program with the help of our experts.

Restriction Description
DND exists No
Time restrictions No
International vs local split No
Local traffic N/A
International Traffic N/A
General content restrictions
  • When using Korean characters, maximum message length for a single part is 40 characters. Standard message price applies.
  • Chinese characters and binary are not supported.
  • Only single-part messages are allowed.
  • Gambling content is not allowed.
Content registration required No
Opt-out instructions required ---
Sender ID Regulations All sender IDs are overwritten with Korean long codes
Sender ID registration offered by Clickatell Not supported
Sender ID documentation required N/A
Country supports MNP Yes

Other resources

Help Center

Help Center

Learn more about our SMS features as well as other related topics.

Visit help center

SMS Promotions

SMS Promotions

Browse through the current list of promotions and take advantage of our special rates.

View promotions

Contact support

Contact support

Contact our support team and one of our agents will be in touch with you to answer any questions you have.

Contact support

New