"Dial This Code" Scams: What USSD Codes Can Do
A caller asks you to dial a code to 'fix' your account or claim a prize. Some codes forward your calls to the scammer or authorise payments. Which codes to be wary of, and how to undo forwarding.
Short codes starting with * or # are part of everyday mobile life: checking airtime, opening the mobile money menu. That familiarity is what scammers exploit. A caller asks you to "just dial this code" to fix a problem, and the code does something else entirely.
What codes can do
- Open menus for balances and transfers: harmless when you dial your provider's official code yourself.
- Forward your calls: on many networks, a code beginning
**21*followed by a number forwards all your calls to that number. - Start transactions that then ask for your PIN.
Why call forwarding is dangerous
With your calls forwarded, verification calls from your bank, mobile money provider or WhatsApp go to the scammer. They can then reset your PIN or take over accounts. See voice call verification tricks.
Never dial a code someone gives you on a call or in a message. Only use codes printed on your SIM pack or listed on your provider's website.
If you dialled a code
- Cancel call forwarding: on most GSM networks, dial
##002#. Confirm with your network. - Change your mobile money PIN. See choosing a PIN.
- Call your provider on its official number to check transactions.
- Check WhatsApp and banking apps still work normally.
Related: fake customer care calls. For more, see common mobile money scams.
Frequently asked questions
What can a dialled code do?
Codes can check balances and open menus, but some change phone settings such as call forwarding, and some start or approve transactions.
Why would a scammer forward my calls?
So that verification calls from banks or apps, including WhatsApp voice codes, go to the scammer instead of you.
How do I cancel call forwarding?
On most GSM networks, dialling ##002# cancels all call forwarding. Your network can confirm.
Sources
- Scam Advice, GSMA
- Phone Scams, US Federal Trade Commission
- Received verification code without requesting it, WhatsApp Help Center
