|MCC (Mobile country code)||440|
Sender ID Guidelines
|Alphanumeric Sender ID||
Alphanumeric sender IDs are supported.
|Numeric Sender ID||Numeric sender IDs will be overwritten to ensure delivery.|
|Generic Sender ID||Generic sender IDs such as INFO, SMS, NOTICE etc are prohibited.|
Use-Case & Content Guidelines
|Message Content with URL Links||There are preventive measures by Japanese networks against phishing SMS that may affect delivery of messages with URL links. The Japanese networks will not disclose their rejection criteria.|
|Concatenated Unicode Message||The maximum length/characters for unicode messages is 670 full-width characters for Docomo, KDDI, and Softbank networks, and 660 full-width characters for the Rakuten network.|
|Marketing Traffic||Before sending any marketing traffic, opt-in consent is required from handset users.|
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.