MarioSMS

Facebook Verification Code Not Received

Updated · MarioSMS team

When a Facebook code does not arrive, check first whether the SMS is the real problem. Some cases are delivery failures, where your carrier dropped a message Facebook did send, or the code went to an old number still on the account. Others are accounts Facebook has locked or flagged, where no SMS was coming in the first place and a new code will not unlock anything. The two need different fixes, so start by working out which one you have.

Delivery problem or locked account?

What you seeLikely causeFirst move
“Enter the code we sent” and nothing landsCarrier filtered the SMSTry the email or Code Generator option
“We sent a code” but the number shown is oldCode went to a number you no longer useSwitch to email confirmation
“Your account has been locked”Security checkpoint, not deliveryFollow the ID or selfie check Facebook shows
“Too many attempts, try again later”Rate limit on code requestsStop requesting and wait
Marketplace asks for a phone and rejects itThe number range is refusedUse a mobile line, not a VoIP app number

What to do, in order

  1. Read the number Facebook shows on the code screen. It usually masks all but the last two digits. If those are not your current number, the code is going to an old line and no amount of waiting will bring it to you.
  2. Check the format. Country code first, no leading zero. A UK mobile 07700 900123 goes in as +44 7700 900123.
  3. Look in filtered messages. The confirmation SMS starts with FB- and comes from a short code or sender name your phone may not recognise, so iPhone’s unknown-senders tab and Android spam filters catch it.
  4. Ask for the code another way. On most screens Facebook offers email instead of SMS. If you set up two-factor authentication, the Code Generator in the Facebook app on a device where you are still logged in produces a code without any SMS at all.
  5. Request one new code, then wait. Repeated requests hit a rate limit that blocks further codes for a while, so each extra tap makes the next attempt later.

Why Facebook’s SMS gets filtered

Facebook sends codes as business SMS through aggregators, and some carriers drop that traffic, particularly on prepaid and roaming lines. The sender ID varies by country, so a filter that trusts one version may block another. Calls and data keep working, which is why the phone looks fine. The general journey of a code, and why whole routes sometimes go silent, is covered in our guide on codes that never arrive.

When the account is locked, a code will not help

A checkpoint such as “We suspended your account” or a request for a photo of your ID is an identity review. Facebook is not waiting on an SMS, and requesting codes only adds attempts. Complete the check it shows, from a device and network you have logged in from before, because a familiar device is one of the signals the review weighs. Business accounts add a layer. Admins in Meta Business Suite may be required to use two-factor authentication, so a missing code there can block access to ad accounts and Pages as well as the profile.

When a rented number cannot help

If you are recovering your own existing account, a different number is no use. Facebook sends the confirmation code to the number and email already on that account, and you have to reach one of them. Use email recovery, the Code Generator, or saved recovery codes. If none of those are available, Facebook’s identity process is the only route back.

When a rented number is the fix

A rented number helps when the code can go to a new line: you are creating an account and your own number is refused or already tied to your personal profile, or you can still change the number on file and want one that receives SMS reliably. Marketplace and new-account checks refuse VoIP app numbers, while rented Facebook numbers come from real mobile ranges that pass the lookup. After verification, add an email you control and switch two-factor authentication to an authenticator app, so the account never depends on that line. A separate profile for managing a business or client Pages is an ordinary use under our acceptable use policy. A second personal profile pretending to be someone else is not, and Facebook removes those whatever number confirmed them.