Recently, OpenAI’s launch of the ChatGPT chatbot has taken the internet by storm. Although OpenAI services are not officially available in mainland China, this hasn’t stopped the surge of interest among Chinese users—especially opportunistic “bounty hunters.” Within just a few days, OpenAI registered over a million users, and ChatGPT accounts are now selling in China for prices ranging from 10 to 30 RMB. As registration becomes more difficult, the price of these accounts continues to rise. Since OpenAI registration requires phone number verification, this has inadvertently driven massive traffic to an international SMS verification platform—SMS-Activate. Due to the traffic spike, the SMS-Activate website may occasionally become inaccessible.
What is an SMS Verification Platform?
An international SMS verification platform is a service that aggregates a large number of mobile phone numbers to provide SMS-based authentication services. In everyday use, when we register for online services, platforms often require SMS verification codes to confirm our identity.
An SMS verification platform operates as a cloud-based service using virtual phone numbers to receive these verification messages. The basic principle is that telecom providers (SIM card suppliers) offer their numbers to the platform, which then makes them available to users who need to receive verification codes.
So, what can an SMS verification platform be used for?
These platforms allow you to receive SMS verification codes using virtual phone numbers, which can be helpful in various scenarios such as account registration, identity verification, account binding or unbinding, and other similar processes.
What is SMS-Activate?
SMS-Activate is a platform that allows users to register accounts on millions of online services across the globe. It offers virtual phone numbers from most countries worldwide, enabling you to receive SMS verification codes online. The service includes features such as long-term virtual number rentals, call forwarding, phone verifications, and more.
With SMS-Activate, you can receive SMS messages using virtual numbers and register on over 600 different platforms with one-time-use numbers. Messages are delivered instantly.
Official website: https://sms-activate.org
How to Use the SMS-Activate Platform for Receiving SMS Codes
SMS-Activate is a paid SMS activation platform based in Russia. The website is relatively easy to use, but beginners might encounter a few issues when using it for the first time. Below is a step-by-step guide on how to receive SMS codes through SMS-Activate.
Step 1: Register an Account on SMS-Activate
First, visit https://sms-activate.org
In the top right corner of the website, switch the language to Chinese (or your preferred language), then click “Register.”
You can register using an email address or sign in directly using your Telegram account.

After registering and logging into your account, click “Top Up” in the top right corner. SMS-Activate supports a wide range of payment methods, including BTC, Bitcoin, and other cryptocurrencies.

The minimum top-up amount is $0.50, but generally, a recharge of $1–$5 is sufficient to register accounts on various platforms, including Telegram bots (TG), Gmail, and more. If you’re only looking to explore ChatGPT’s basic chat features, you can use SMS-Activate’s temporary number service.
However, if you plan to use OpenAI’s ChatGPT long-term, it’s recommended to rent a fixed number on a monthly basis through SMS-Activate. This is because services like TG, Google, and ChatGPT may require second or even third phone number verifications. A $10 recharge on SMS-Activate is typically enough to cover your needs.
Selecting a Registration Service
After topping up, select the correct registration service. On SMS-Activate, you must choose the specific service you want to register for—random selections will not display the verification code.
For example, if you’re registering for OpenAI, simply search for “OpenAI” in the left-hand sidebar and select the corresponding service.

Select the number’s country of origin by clicking the shopping cart icon next to the desired country. Currently, India is a popular choice due to its lower cost.

When entering the phone number on a website, make sure to remove the country code at the beginning.
After entering the phone number for verification, the SMS code will appear in the “Waiting for SMS” section. Usually, you’ll receive the code within one minute. If the code doesn’t arrive, click the “X” to close the current number and choose another one to try again.
SMS-Activate offers a large selection of phone numbers, but you must choose the correct service category before using them. For some less common services, receiving the SMS may not be possible.
List of SMS Verification Platforms (SMS Activation Services)
Free SMS Activation Platforms:
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TextFree – USA
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Offers free international fixed numbers
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Trusted by over 130 million users
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Requires Android or iOS app download
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TextNow – USA
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Receive-SMS.com – USA
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MyTrashMobile – USA, UK, Canada
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Sellaite SMS Receiver – Estonia
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ReceiveFreeSMS.net – Canada, UK, USA
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SMSReceiveFree.com – USA, Canada
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Receive-SMS-Online.info – Denmark, France, UK, Netherlands, Timor-Leste, Sweden, Finland
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