Scam, does not work, their numbers are not the right format so no online platform will accept it. Told them in ticket, they replied i should use a VPN, try multiple times and go incognito. When i gave... See more
Company replied
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Still 1 star is too much. Just Scam. Didnt work, tried some time later just to learn that the account was deleted within 30 with all funds. This is just ridiculus. They send some mails, but to the Gm... See more
Company replied
They deleted my account (with funds on it) after 30 days of inactivity, without sending me any email about account inactivity and account deletion. Nice way to scam people! I asked information t... See more
Company replied
After reading a single person's review of saying "out on x numbers, some worked", it was good enough for me so I tried. I needed a Turkish number for a gmail account, I selected one that lasted... See more
Company replied
Company details
Written by the company
We are a service that provides its customers with phone numbers for receiving messages from various services, social networks, instant messengers and other categories of sites. We have a database of more than 1 million numbers in more than 50 countries. For a long time of our project, we have conquered all the markets of the world and at the moment our customers are located all over the world.
Contact info
6, EU TONG SEN STREET, #09-09, THE CENTRAL, SINGAPORE 059817, 059817, The Central, Singapore
- 659819787990
- corp@onlinesim.io
- onlinesim.io
2.0
Poor
132 reviews
Replied to 100% of negative reviews
Typically replies within 2 weeks
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Worst support evet.
Worst support evet.
their system is not even programmed properly.
rented 4 numbers, the 4 was dead and never received sms, i cancelled and when you cancel u receive refund in funds. they eat my money.
how convenient.
avoid this crap service
September 26, 2025
Unprompted review
Reply from OnlineSIM
Hello. We’ve read your message and understand your frustration.
Just to clarify: our system only deducts funds for successfully received SMS. If no SMS is received, the balance typically remains untouched or is refunded according to the service terms.
That said, your comment doesn’t include specific details — and we genuinely want to resolve this fairly. If you believe something went wrong, please reach out to our support team at https://t.me/zabotaonlinesim. We’ll look into your case and do everything we reasonably can to make it right.
Best regards,
Onlinesim Administration Team
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Left my country and refused to refund…
Left my country and refused to refund remaining account balance. That's really all you need to know.
September 1, 2025
Unprompted review
Reply from OnlineSIM
Hello. We saw your comment and we get it — when money’s involved, clarity matters.
If something went wrong with your account balance after leaving your country, that’s not something we want to leave unresolved.
Let’s not guess — reach out to our support team at https://t.me/zabotaonlinesim, and we’ll dig into the details with you.
We’ll do everything we reasonably can to sort things out and make sure you’re treated fairly.
Thanks for giving us a chance to look into it.
Best regards,
Onlinesim Administration Team
SCAM SCAM SCAM SCAM SCAM
May 7, 2025
Unprompted review
Reply from OnlineSIM
Hello. We’re sorry to see such a strong reaction without any specific explanation. If something went wrong during your experience with Onlinesim, we genuinely want to understand the issue and help.
Our service provides temporary virtual numbers for SMS verification across various platforms, and all payments and activities are logged and verifiable. We do not resell numbers to multiple clients, and all transactions are handled transparently.
Please reach out to our support team via the chat button at the bottom right corner of the site — and if you’ve already contacted us, feel free to ask for a technical specialist or write directly to our Quality Control Team in Telegram: @zabotaonlinesim
We’re here to help — but we need details from your side to investigate and provide a fair resolution.
Best regards,
The Onlinesim Team
This is a scam
This is a scam ! I get debited, and then my access was forbidden ! Don't BUY !
May 22, 2025
Unprompted review
Reply from OnlineSIM
Hello. Thank you for your feedback. We’re sorry to hear that you had a frustrating experience.
However, we’d like to clarify a few important things.
At the moment, your message doesn’t specify which type of access was blocked — whether it was access to your onlinesim.io account or to a third-party service (such as WhatsApp, Telegram, etc.) after using one of our temporary numbers.
If your onlinesim.io account access was restricted, it may have been due to:
– a temporary technical issue,
– security flags during payment,
– or an incomplete transaction.
In any of these cases, please reach out — we’re happy to investigate and assist.
If access was denied by a third-party service (like Telegram or WhatsApp), please note that these platforms sometimes restrict accounts for reasons beyond our control. We do not influence their internal moderation policies.
That said, your funds remain secure, and we are always ready to help resolve the issue.
You can:
– Contact us again via the chat button at the bottom-right of our website and request to speak with a technical specialist,
– Or reach our Quality Control Team on Telegram: @zabotaonlinesim
We are committed to addressing every concern fairly and thoroughly. Please provide your order date or account details so we can look into this further.
Thank you again for helping us improve.
Best regards,
The Onlinesim Team
Terrible service – nothing works
I’ve tried multiple numbers from different countries on onlinesim.io, and none of them worked. SMS messages never arrive, and in many cases, the numbers aren’t even accepted by the platforms. Customer support is completely useless – they always give the same generic responses without offering real help. It feels like a scam – they just take your money and deliver nothing in return. Avoid this service at all costs.
May 18, 2025
Unprompted review
Reply from OnlineSIM
Hello! We sincerely regret that you encountered difficulties while using our service. We want to assure you that we are not involved in any fraud and always strive for transparency in our operations.
Important points:
1) Funds are only deducted after successful receipt of an SMS. If the message did not arrive, your balance will not change – charges are applied only for numbers that successfully received SMS.
2) We provide a full withdrawal option. If you have remaining funds on your balance, you can request a refund through the support chat.
3) To resolve your issue, please contact support chat and ask to be transferred to a technical specialist. They will review your case in detail and help find a solution.
4) It is important for us to improve our service quality. Please provide your account ID or login so we can check your interaction with the operator and understand why the assistance was ineffective.
Our service is built on a simple and transparent system:
✔ Charges only for received SMS
✔ Ability to withdraw funds at any time
✔ Technical support ready to handle complex cases
Give us a chance to fix the situation — write in the chat, and we will do everything possible to help.
Best regards, the Onlinesim Team
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No HK or China numbers for QQ registration…
When you check the site you will see Hong Kong and China listed along the Countries whose numbers are provided.
In my case, My Quest was simple: get a QQ email registered.
To My surprise after top up of the account with the minimum of $10 - for which you get charged $12, I tried and quickly found no China or HK numbers are available for SMS reception.
In the end trying to save something out of a bad Deal I tried a Chile Number for whatsapp registration which is something I have been looking for for a while, and WhatsApp couldnt even accept sending a code to the provided Number. So there.
May 16, 2025
Unprompted review
Reply from OnlineSIM
Hello. Thank you for your feedback and for sharing your experience. We sincerely regret that you encountered difficulties while using our service and understand your frustration.
We do collaborate with operators from various countries, including China and Hong Kong; however, sometimes the number of available numbers in real-time may not match what is displayed. This is a technical challenge we are actively working to resolve, and there is no malicious intent behind it. If the numbers you need are temporarily unavailable, please try checking again later or contact support — we will do our best to help you find an alternative.
Some payment systems, especially international ones, may charge an additional fee during processing. This information is shown on the checkout page before confirming your payment. Unfortunately, we do not control these fees, but we always strive to make conditions as transparent as possible for our users.
Regrettably, services like WhatsApp often block virtual numbers, especially when requests are frequent. This is their internal policy, and as intermediaries, we cannot influence these restrictions. To increase your chances of successful registration, we recommend trying numbers from other countries (such as Indonesia or Mexico), changing your IP address via VPN, clearing your browser cache, or using a different device. It is important to note that funds are only deducted after successful receipt of the SMS, and in case of an issue, we guarantee a refund.
We openly acknowledge that there are areas for improvement in our work, and we thank you for your feedback — it helps us become better. If you are willing to give us another chance, our support team will be happy to help find working solutions for your tasks, whether it’s registering for QQ, WhatsApp, or other services.
If you have any questions or need assistance with a refund, please contact our 24/7 support — we will do our best to resolve your issue as quickly as possible.
Once again, thank you for your patience and understanding. We value every customer and will do everything possible to make your next experience with our service more positive.
Best regards, Onlinesim Team
Unhelpful support with pre-set messages
Continuous errors with numbers that are not generated uniquely, but are used by multiple users. You dial a number that is used by multiple users. Furthermore, those rare numbers that are not used by other users unfortunately for services like WhatsApp never arrive even by changing VPN and all the other pre-set "advice" from operators who are unable to really help you with the problem
April 22, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you for your feedback. We are very sorry that you encountered difficulties. Please allow us to clarify the situation:
Number Uniqueness
Our numbers are issued exclusively to one user at a time and cannot be reused by other clients after the rental period ends (15-20 minutes for “SMS Reception” or after the rental expires). However, mobile operators sometimes reissue inactive numbers after 2-3 months, which can lead to conflicts on third-party services (such as WhatsApp).
Problems Receiving SMS
— If the SMS does not arrive, funds are not deducted (payment is only processed after the first SMS).
— We recommend:
• Closing the current number (click the red cross) and ordering a new one.
• Changing your IP/VPN and your browser/device (this increases the chances, as services like WhatsApp block mass requests).
Blocked or Occupied Numbers
We guarantee a refund in such cases. Please contact support. The average response time from an operator is 3 minutes. The average time to process a refund to your account balance is 1-4 hours.
Technical Limitations
We do not control the policies of services (WhatsApp and others) that may block virtual numbers. This is a common issue with all SMS activation services.
Important: We are constantly improving the system to minimize such situations. We are ready to assist you via support chat — we will review your case individually.
Best regards, Onlinesim Team
You need to upgrade your sevices
You need to upgrade your sevices ! :)
Need update hourly :)
im top up 20 usd but nothing has been gained
April 15, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you for your feedback, and we sincerely apologize for the experience you've had with our services. We appreciate you taking the time to share your thoughts, as it helps us identify areas for improvement.
We understand how frustrating it can be when expectations are not met, especially regarding service updates and value for your investment. We are continuously working to enhance our offerings and ensure timely updates, and your input is vital in guiding these improvements.
If you haven't already, we invite you to reach out to our support team through the chat feature on our website. Please reference your review, and we will promptly escalate your case to a technical specialist who can work with you directly to resolve this issue.
We value your business and are committed to regaining your trust. Thank you for giving us the opportunity to address your concerns, and we look forward to assisting you further.
Best regards, Onlinesim Team
I purchased a verification service
I purchased a verification service, and it did not work. So I reached out to support for either a refund or assistance and they ignored my attempts for assistance simply not responding to my messages. Bad business.
April 14, 2025
Unprompted review
Reply from OnlineSIM
Hello. We sincerely apologize for the inconvenience you've experienced and regret that our support team did not respond to your requests for assistance. This is not the level of service we strive to provide.
To help us resolve this issue promptly, could you please provide your account login or ID? Additionally, we kindly ask that you reach out to our support chat and reference your Trustpilot review, so we can prioritize your case and escalate it to a technical specialist for resolution.
We take all customer concerns seriously and are committed to finding a solution for you. Thank you for your patience, and we appreciate your feedback as it helps us improve our services.
Best regards, Onlinesim Team
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Reply from OnlineSIM
Hello! Thank you so much for your kind words! We're thrilled to hear you had a positive experience. If there's anything else you'd like to share or if you have any questions, feel free to reach out. We appreciate your support!
Best regards, Onlinesim Team
Surprisingly, it worked for me
After reading a single person's review of saying "out on x numbers, some worked", it was good enough for me so I tried.
I needed a Turkish number for a gmail account, I selected one that lasted for 15 mins, verified with no problem and continued on my way.
The next day I tried using again a Turkish number but it says they are out of Turkish numbers, and asked me if I wanted something else close to that area, which I declined (So they probably fixed the issue with being given used number).
I have a very unexpected and positive experience, even though it looked like a scam, it worked for me. Have fun you guys
April 5, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you for your feedback. We’re glad to hear that you had a positive experience with our service!
We would like to clarify that charges are only applied for received SMS, and you can try using a different number if you encounter any issues. Sometimes there may be problems with displaying the actual number of available numbers, but we're continuously working to improve this.
If you experience any difficulties, please don’t hesitate to reach out to our support chat — our team is ready to assist you, or you can request a withdrawal if needed.
We look forward to helping you again in the future!
Best regards, Onlinesim Team
I tell my experience with Telegram.
I tell my experience with Telegram.
I created 2 telegram account using an US numbers, but both after 5 minutes got banned for some reason, even without using the account. Definitely is something wrong with the number and where come from. The website is not really reliable.
March 23, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you for sharing your experience with us. We understand how frustrating it is to have your accounts banned, especially if you haven’t used them.
Please note that bans are usually related to user actions, not the phone number itself. To help you, we kindly ask you to contact our support chat and ask to speak to a technical specialist. If this is your first time experiencing this issue, we offer a refund.
By contacting our support team, we can not only simplify the refund process, but also provide you with practical advice to help you avoid similar issues in the future.
We truly value your feedback and are committed to resolving this issue to your satisfaction. We hope to hear from you soon and demonstrate that our actions are aimed at finding a solution.
Best regards, The Onlinesim Team
trash ass website
March 13, 2025
Unprompted review
Reply from OnlineSIM
Hello. Thank you for your feedback. We are sorry to hear that your experience with our site was not satisfactory. We strive to provide the best possible service and your comments are important to us.
In order to better assist you, could you please provide your account ID or username? This will help us resolve your issues more efficiently.
Also, I would like to point out that we offer the option to withdraw funds from the site and the funds are debited only after a confirmation SMS is sent to your registered phone number.
If you have any specific issues, please let us know and we will try to resolve them. You can write to us in the support chat and ask to be transferred to a technical specialist.
Thank you again for your feedback and we hope to resolve this situation.
Best regards, The Onlinesim Team
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The numbers generated are 98% not working
The numbers generated are very unreliable. I tried 50+ Argentina numbers for Netflix and even sent SMS from my private phone. None was received. As a test I generated a German number that didn't even look close to what mobile numbers should look like in this country. But the 2nd german number surprisingly looked right and even worked! So, the service is not 100% fake. And they don't charge the money for a number, if no message was received, to be fair. Still - no success at all with the Argentina numbers.
March 12, 2025
Unprompted review
Reply from OnlineSIM
Hello. It is nice that, despite the negative review, you nevertheless noticed that the service does not charge money for numbers that do not receive SMS and the fact that our site is not so hopeless and you were able to use it by accepting an SMS to a German number from Netflix.
However, as a representative of the company, I want to point out the fact that the problem is not only in the numbers. I checked, indeed, Argentine numbers are problematic and are not suitable for netlfix - we will deal with this problem and will try to do everything possible to solve it, however, I believe that your estimate of 98% of non-working numbers is greatly exaggerated. I checked and found the following numbers for netflix for the last two weeks: Thailand - 100%, Laos - 100%, Australia - 100%, South Africa - 100%, Czech Republic - 100%, Netherlands - 100%, Hong Kong - 81.81%, Japan - 76.19%, Philippines - 69.66%, Haiti - 66.66%, Cambodia - 57.14285714%, Indonesia - 50%, Brazil - 50%, United Kingdom - 50%, Peru - 42.85%, USA - 33.33%
According to Argentina numbers, the success rate is only 27.27% (15 received and 40 rejected SMS)
If you have an idea on how to deal with this issue, please write to support, be sure to tell the operator that you left a review. I will assign the case to the responsible operator, who will try to solve your problem.
I would be very grateful if you could provide me with your account ID or email on onlinesim in your reply.
Best regards, The Onlinesim Team
Good app ine
March 4, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you for your feedback! We're glad to hear that you like the app. If you have any suggestions or ideas for improvement, feel free to share. We’re always looking to make your experience even better!
Best regards, The Onlinesim Team
Reply from OnlineSIM
Hello! Thank you for your amazing review! We are grateful for your time and interest. We are happy that you are satisfied with the service. Please don't hesitate to contact us if you have any questions.
Best regards, The Onlinesim Team
Everything is perfect ⭐️⭐️⭐️⭐️⭐️
Everything is perfect, i use the website already for 2-3 years, everything works very good, even if there are some problems, i just write to Support and they answer in about 5 Minutes 👌🏻
February 11, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you so much for your positive feedback! We are so glad you like our website. We strive to provide an excellent service, and your feedback is important to us. We work hard to provide our clients with the best experience. Thanks for your support!
Best regards, The Onlinesim Team
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Reply from OnlineSIM
Hello! Thank you so much for your positive review! We're really glad to hear that you like our website. We strive to provide a great experience for all our users, and your feedback helps us to do just that. Is there anything specific you particularly enjoyed about our website? We're always looking for ways to improve!
Best regards, The Onlinesim Team
Scum
Scum. Number or not working, or not available. Basically useless service. I think, it is simple SCAM.
Whatever did you want from russians?
Do not use it. You will just lose your 12$
January 25, 2025
Unprompted review
Reply from OnlineSIM
Hello. We sincerely apologize for your negative experience. We understand your disappointment, but we want to assure you that we are not a scam. We are a registered company in Singapore at 216 JOO CHIAT ROAD #02-16/6 SOHO LIFE SINGAPORE – 427483, and we take our reputation very seriously.
We believe that nationality should not be a factor when evaluating our service, and we ask that you focus on the service itself, not where our team members are from.
We value your feedback and would like to clarify that the number is only charged if the SMS is successfully received. If the SMS is not received, you can cancel the number at no extra cost and try another one.
To ensure that we can resolve your issue quickly, please contact our technical support chat and ask to be transferred to a technical specialist. They will carefully review your case and provide the necessary assistance.
We would also like to inform you that we have a withdrawal option that you can request in the support chat.
We hope for your understanding and are ready to do our best to resolve this situation.
Best regards, The Onlinesim Team
It was fast and easy to use.
January 22, 2025
Unprompted review
Reply from OnlineSIM
Hello! Thank you for taking the time to leave a review! We’re glad to hear that you found our service fast and easy to use. Your feedback is very important to us, and we strive to continuously improve our services to meet your needs.
If you have any further suggestions or need assistance, please don’t hesitate to reach out. We’re here to help!
Best regards, The Onlinesim Team
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