Pick a country, get a one-time number, enter it where Facebook asks for your phone, and request the code once. The code shows on your dashboard. Enter it in Facebook and the verification is done. One code completes the order. If no code arrives within 20 minutes, the charge goes back to your balance.
How does Facebook phone verification actually work?
Facebook asks for a phone number in three different moments.
First, when you sign up or add contact details, Facebook sends a code to confirm the number belongs to you. Second, when you set up Facebook texts. Third, when you log in from a device Facebook does not recognise and two-factor authentication is on - a login security code.
Work out which code you are stuck on first - signing up points to the first, a new phone to the third.
You enter the number, Facebook sends a six-digit code to it, you type the code back. A one-time number from SMSOTPS works the same way: pick the service and the country, get the number, paste it into Facebook's phone field, request the code once, and read it on your dashboard when it arrives. How to buy.
Why does the Facebook code sometimes never arrive?
Three layers, and the failure sits in one of them.
Facebook itself is the first: it can limit how many codes it sends in a row, so request the code once and follow the instructions Facebook shows on screen.
Second, the number: a shared public inbox is the weakest option. Anyone on the internet can read a code that lands in one, and shared numbers get refused more often than private ones. What is certain: a code in a public inbox is a code anyone can use. See the free numbers demo.
Then you: a wrong digit in Facebook's phone field. An old code already replaced - once Facebook sends a newer code, the older one stops working even if it arrives late. A phone screening confirmation texts into a blocked folder.
If Facebook never sent the code, nothing will appear on your dashboard.
The code didn't arrive. What now - in what order?
Do these in order.
Check the number you entered first - one wrong digit and the code went somewhere else. Fix it in Facebook's contact settings, then request the code again.
Wait a few minutes, then resend once. Click Send SMS again, then stop touching it.
Switch to email. Add your email to the account and confirm by email instead. A text problem disappears the moment the code travels by email.
If it is a login code, stop chasing SMS. Open your authenticator app, approve the login from a recognised device, or use a recovery code.
A standard activation stays live for 20 minutes. If no code has arrived, cancel the order yourself between 2 and 20 minutes after purchase and the full charge goes back to your balance. If the number expires with no code, the refund happens automatically. Once a code arrives, the order is complete and not refundable. Read the FAQ.
Will this number still work next month?
Short answer: no.
Facebook sends codes to the number registered on the account - new device, re-registration, number change, each sends a fresh code there. A one-time number lives for 20 minutes and then closes. It verifies an account once. It does not keep it.
If the account matters - your main profile - verify it with a number you will still control in a year. A one-time number is the wrong tool for that job.
Already verified with a one-time number? Do three things now, while the account is open: add an email, turn on two-factor authentication with an authenticator app, and save the recovery codes it gives you.
Bottom line: a one-time number for a one-off check; a number you control long-term, plus email, an authenticator app and recovery codes, for the account you intend to keep. See live prices. Browse all services.