South Korea SMS Features and Restrictions
Country Summary
| Country Name | South Korea |
| ISO | KR |
| Country Code | 82 |
| Region | Asia |
| MCC (Mobile country code) | 450 |
Sender ID Guidelines
| Alphanumeric Sender ID |
Alpha sender IDs are not supported and will be overwritten to a random long number to ensure delivery. |
| Numeric Sender ID | Numeric sender IDs are not supported and will be overwritten to a random long number to ensure delivery. |
| Generic Sender ID | Generic sender IDs such as INFO, SMS, NOTICE etc are prohibited. Please use a representative brand or business name to ensure delivery. |
Use-Case & Content Guidelines
| Message Content |
Every message will automatically have either of the following leading text added for delivery:
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| Marketing Content | Promotional messages must contain header advertisement (e.g., "(광고)", advertisement in Korean) and footer with STOP information (e.g., "수신거부" in Korean and opt-out-number) |
| Encoding Scheme | Korean networks support character encoding EUC-KR. Delivery of Chinese characters is not guaranteed. |
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Simple Message Length |
Message length is 140 bytes (140 characters in GSM-7 or 70 characters in Unicode), including the leading text (see Message Content above). |
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Concatenated Messages |
As known as LMS in South Korea, customers can send text messages with up to 1000 Unicode or 2000 GSM characters in length as a single text message. By default, LMS is not supported and concatenated messages may be trimmed or delivered with different parts, and split parts may not be received in the correct sequential order. If you need full LMS support to all networks in South Korea, please reach out to your account manager. |
Additional Information
P2P traffic is prohibited.
No political, religious, unsolicited promotion, or gambling content.
There are no additional content restrictions beyond those in our Acceptable Use Policy.
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