Bulk SMS & OTP FAQ
Short answers to what people ask before they register. If yours is not here, see the contact page.
What is JNT SMS?
A web panel and HTTP API for sending text messages internationally. You can send bulk messages, one-time passcodes (OTP) and notifications to Malaysia, South Korea, Japan and Hong Kong.
How do I send my first message?
Register, log in, top up your balance, then open the send page in the panel. Enter or import the numbers, write the message and send. Developers can use the HTTP API instead.
Can I upload a list of numbers?
Yes. You can paste numbers into the panel or import an Excel or CSV file.
Which countries can I send to?
Malaysia, South Korea, Japan and Hong Kong. Singapore is being optimised, so please contact us before sending there. See coverage.
How much does it cost?
Rates depend on the destination country and are shown in your account after you log in. You can also contact us for a quote. We do not publish a public price list on this website.
How is billing done?
Prepaid. You top up your balance and each message is charged by destination country. If your balance is not enough, sending will not go through until you top up.
Is there an API?
Yes, an HTTP API. The documentation is available at panel.jntsms.com/docs. See the SMS API page.
Can I see whether my messages were delivered?
The panel shows a status for each message, and you can read delivery status reports for your sends. Final delivery also depends on the destination network and the recipient's phone, so a status is information, not a guarantee.
What is a sender ID and do I need one?
A sender ID is the name or number a recipient sees as the sender. Whether a custom sender ID is allowed, and whether it must be registered first, differs by country. Check the country page, or ask us before you send campaigns.
What content is not allowed?
Phishing, scams, fake giveaways, illegal goods or services, harassment, and messages to people who have not agreed to receive marketing. Read the full Acceptable Use Policy. Accounts that break it can be suspended.
Can I send marketing messages to Korea or Japan?
Both countries have specific rules for promotional messages, including consent and labelling requirements. You are responsible for following the rules of the country you send to. See the South Korea and Japan pages and consult a local adviser if unsure.
Do you support OTP messages?
Yes. Send OTP codes through the panel or the API. See OTP SMS. Because delivery time depends on networks, build a "resend code" option into your login flow.