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South Korea SMS messaging regulations and restrictions

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 documentation required N/A
Country supports MNP Yes

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