Send SMS from a virtual number in Vietnam automatically
Get a mobile number and send SMS to any phone number you choose. Fully automatic, high success rate, refunded if unused. Fully API supported for automation purposes.
How does sending SMS work?
Choose an SMS service
Pick the service that fits what you need to send.
Get a phone number
The system gives you a dedicated mobile number.
Write and send
Enter the recipient number and your message (up to 500 characters), then send.
Track the history
See every message sent from each order, right on the page.
Key features
Reliable numbers for sending SMS
Build trust by texting from a real mobile number instead of a hotline.
Choose from many prefixes and operators across Vietnam.
An automatic 24/7 system tuned for the way you work.
Use the API to buy numbers in bulk and automate with your own systems.
Low cost, suitable for both personal and business use.
Rent the same number again to send more messages when needed.
Frequently asked questions
How does sending SMS work?
You choose an SMS-sending service and the system gives you a phone number. You enter the recipient number and the message you want to send, and the system sends it for you automatically. If you need to receive a verification code instead of sending a message, use Receive OTP.
How many messages can I send?
Each rental lets you send a set number of SMS, depending on the service you choose. You can rent the same number again to send more if needed.
Which operators are supported?
The system supports a wide range of operators across Vietnam with many different prefixes. You are free to choose the prefix and operator that suit your needs when you get a number.
Is there an API for integration?
Yes! HupSMS offers an API so you can buy numbers and send SMS automatically. It suits every customer, including those who need many numbers for their own use.
Are there limits on message content?
Each message can be up to 500 characters and is sent to a Vietnamese mobile number. Some services only allow sending to a specific short code or with specific content; this is shown when you choose the service. Using the SMS service for any unlawful purpose is strictly prohibited.
Do I pay if I do not send any message?
No. If the rental expires before you send anything, the system automatically refunds 100% to your balance. You can also cancel the order yourself in the first few minutes if you have not sent a message.
How long does a number rental last?
A rental usually lasts about 10-20 minutes, depending on the service, and the time is shown after you rent the number. If you need the number again after it expires, you can easily rent it again.
Can I see the messages I have sent?
Yes. Every rental has a sending history with the recipient number, content and status of each message.
Can the rented number receive replies?
Some SMS services let you receive a verification code sent back to the rented number; this is shown when you choose the service. But if your main goal is to receive a verification code, you should use Receive OTP.