How to Receive a Verification Code with ThisSMS: Three Simple Steps

To receive a code in a ThisSMS public inbox: choose a number and open its inbox → request a text on the other website → return to check and copy the code. Reading public messages is free. You do not need a ThisSMS account, a prepaid balance, or an app.

Other people can also read the messages in that inbox, and the number is not reserved for you. For private messages or a number linked to an account long term, use a number you control. Here is the process, step by step.

First, understand what kind of number the service provides

SMS means text messaging. An online SMS verification service generally provides phone numbers so you can receive verification texts in a browser. ThisSMS now also supports free outgoing texts: public inboxes need no registration, while sending requires an account and sign-in. These features have different entry points and rules.

When choosing a service, ask three questions: are the messages public, how long will the number be available, and what types of numbers does the service requesting SMS verification accept? Free does not mean private, and paying does not necessarily mean a number is exclusively yours. A public inbox suits temporary uses where public messages are acceptable and long-term account access is unnecessary. For everyday accounts, financial services, and future password recovery, use a number you can keep control of. For a closer comparison, see public versus private phone numbers.

Also distinguish the number's type from how it is used. Physical SIM and VoIP describe how a number is provided; public and exclusive describe who can use it and read its messages. A physical SIM number can still be shared. If a website explicitly rejects VoIP numbers, checking the type is more useful than repeatedly requesting another code. Read about the differences between physical SIMs, eSIMs, and VoIP.

Open the inbox before requesting a code

Go to the number list, choose a country or region suitable for your task, and open a number's inbox. This lets you check that the number is currently available before requesting a text, rather than searching for its page after the code has been sent.

ThisSMS regularly changes its numbers. The list is the reference for the countries, regions, and numbers currently available. It currently offers US physical SIM numbers. Once you have chosen one, you can open its inbox directly without supplying your own phone or SIM card.

To get a feel for reception, look at a number with message history. Its records and most recent message time tell you about that inbox, but do not mean every platform will send a code to it.

Copy the number without duplicating the country code

Copy the number from its inbox, return to the website requesting SMS verification, and follow its input instructions. If the form has separate country or region and phone-number fields, check whether the country code is already included.

For example, the current US numbers begin with +1. If the form already has the United States selected and shows +1 outside the number field, do not add +1 again without checking the expected format. Forms vary, so follow the field's instructions.

Also confirm that the website supports the selected region and permits shared numbers. If it requires a personal mobile number that you will keep long term, a public inbox is not suitable for that task.

Return to the same inbox and check the new text

After requesting the text, return to the number page you opened. With a working connection, new messages update automatically; constant refreshing is unnecessary. Check the sender, time, and message body before using a code, to make sure it relates to your request.

A public inbox may contain other people's messages at the same time. Do not copy a few digits simply because they look like a code. Even when the page offers a copy-code button, first check which message it belongs to.

The number activity list helps you review recent activity across available numbers. If you are waiting on just one number, staying in its own inbox is simpler and reduces the chance of a mix-up.

Still waiting? Check these two things first

First, does the full number entered on the sending website exactly match this inbox? Second, did that website report an unsupported number, a sending failure, or a wait before the next request? An empty inbox alone does not identify where the text was held up.

If those checks do not resolve it, follow the missing-code troubleshooting guide. If the website says the number type is unsupported, go straight to why virtual numbers may not receive verification texts, rather than waiting through repeated countdowns.

You can star a number to open it more quickly later. Favorites are stored in your current browser and act as shortcuts; they do not reserve a number. For what to check when returning, see what to do when a saved number disappears.

You can now send free texts as well as receive them

If you need to contact someone first, use free online SMS sending. After you register and sign in, the system selects an available shared sending number. Enter the recipient's number and your message to send, with no advance top-up. See the browser-based texting guide for the steps. Reading public messages still requires no registration.

Registering does not make the number private. New incoming messages appear on public pages and in the account area; your outgoing message history is not displayed on the public inbox page.