SMSOnline

FAQ

Is this site FREE?

Absolutely yes, this site is eternally free of charge.

Since this service is maintained for academic purposes, there is no systems to receive charges from you.
We are keeping this site available only by advertising income and all advertising revenue will be used for adding new phone numbers.

How to use SMSOnline.cloud?

Please refer to this page.

Is it safe to use the service?

Yes, rest assured.

SMSOnline does not have any system aimed at collecting user information, and you can use it anonymously.
Additionally, the service is hosted on servers in Moldova, which have strict SLAs regarding personal data protection.

Do you filter text messages?

Yes. In order to provide a comfortable experience for many users, we filter content that violates the law, is dangerous, involves pranks, is violent, promotes discrimination, or has a high likelihood of spam during the message processing. Additionally, to prevent privacy exposure, we filter messages from unauthenticated phone numbers. Displaying all messages received by SMSOnline could potentially be misused by malicious individuals to reveal third-party privacy on the site or attempt to lure users into phishing or scams.

I have waited for a while but no messages arrived.

We are working to able to see the messages we receive on our website as quickly as possible, but there are some technical issues, so please wait up to 5 ~ 15 minutes.

If you don't get any messages you awaits, there are some reasons like:

If many users are requesting SMS simultaneously, the carrier's lines may be busy, or the web service may temporarily hold SMS delivery.
The service banned the phone number.
There are some issues on our telephones such as off-line.

Please resend short-mail or use other phone numbers available on our website.

Are there any time limitations for using the phone number?

Our mission is to provide disposable phone numbers to as many people as possible, without time or geographical constraints. However, many websites only allow one account creation per phone number. Therefore, the longer a phone number is provided, the fewer users can use it.
For this reason, we regularly rotate phone numbers to ensure that new users who discover SMSOnline can also have access to phone numbers.
The duration for which a phone number is provided varies depending on availability and user usage, but it generally lasts from a minimum of 3 months to up to a year.

Check the list of numbers that are no longer available here.

Is it possible to send texts or receive calls?

Unfortunately, no. Sending texts is intentionally not allowed on our platform as it could potentially become a source of spam. We are considering the feasibility of receiving calls, but due to cost issues, it has not been implemented at this time. Please stay tuned for updates.

Are there paid/private temporary phone numbers?

We are sorry to say that we are not serving private phone numbers.
Our goal is to realize fair connectivity to the internet for everyone, so offering private numbers is against our belief.
We understand that there are many requests for paid phone numbers, but we would appreciate your understanding of our mission.
Instead, we are working hard to continue providing publicly available temporary phone numbers on our website.

How often you add new phone numbers?

Phone numbers are added as soon as the SMSOnline Team acquires new numbers or receives contributions from volunteers.
The frequency of new additions is irregular, but on average, 3 to 5 new numbers are added each week.

When a new phone number is added, we will notify you on our Telegram channel.

How does the SMSOnline system work?

SMSOnline automatically posts text messages received by phone numbers managed by the SMSOnline Operating Team and phone numbers provided by paid volunteers on the website.
We use our independently developed Android app to monitor text messages arriving at your phone number and send them to a server we manage. On our servers, we filter harmful messages based on the text of the email and the sender's phone number.
Finally, we serialize the sender against our SMS database and store the message in an SQL database for use on our website. At this time, the sender's phone number is discarded and not stored in the database for privacy reasons.
This series of tasks uses open source APIs such as android.provider.Telephony API. We are also developing natural language processing models to identify and eliminate harmful messages using datasets with anonymized senders.

Is registration required for using SMSOnline? Additionally, is there a risk of virus infection?

No registration is necessary to use SMSOnline. We value privacy more than anyone else in the world.
However, SMSOnline operates under the laws of Hong Kong, where it is based. Please refrain from using our services maliciously, such as by exposing third party privacy.

There is no need to worry about virus infection.
A browser is all you need to use SMSOnline. And our service runs entirely within your browser's sandbox and does not require any special permissions.
Our site is supported by advertising revenue. Internet advertising is often pointed out to be at risk of malvertising, but you can use our services with peace of mind as we entrust the management of our advertising space to reliable partners.

Who operates SMSOnline?

SMSOnline operates with Liao Weijie, a graduate of Shanghai Jiao Tong University, and three reliable allies as core members. Our service is primarily operated for academic purposes, and we welcome numerous volunteer members over the internet. Although our current base is in Hong Kong, SMSOnline operates on a global scale.

SMSOnline was acquired by Transcomm S.R.L. in November 2024, but the founding members continue to support its operations.

Are there any prohibited actions?

Yes. To ensure equal opportunities for all users to use disposable phone numbers, scraping of the website, and the use of bots or crawlers to monopolize our service are prohibited.