What is My Number.io
How to check your own number on MTN
To check your own MTN number, open your phone dialer and dial *123*888# — it's free and your number shows on screen (or arrives by text). Or detect it automatically.
On iPhone, tap-to-dial may not run USSD codes automatically — copy the code and dial it manually if it doesn't open the keypad.
Step by step
- Open the phone dialer. Open the dialer/keypad app on your phone.
- Enter the code. Type *123*888# exactly as shown.
- Press call. Press the call button — it is free.
- Read your number. Your phone number appears on screen (or arrives by text).
What you'll see: Your MTN number appears on screen.
If that doesn't work
*663# is reported as an alternate, or open Settings → About phone → SIM status.
Free; works on prepaid and postpaid.
What your South Africa number looks like
A South Africa mobile number is mobiles 10 digits national (start 0), written +27 XX XXX XXXX — for example 082 123 4567 / +27 82 123 4567. If what you see doesn't match that, you may be reading a different field (such as the ICCID/SIM serial) rather than your number — re-check with the method above.
About MTN
MTN is one of South Africa's biggest networks and a pan-African giant. Dial *123*888# to view your own number on screen.
MTN quick facts
| Carrier | MTN |
|---|---|
| Also known as | MTN SA |
| Network type | Mobile network operator (MNO) |
| Parent company | MTN Group |
| Country | South Africa |
| Customer care | 135 (from an MTN phone) |
| Self-number method | *123*888# (USSD) |
FAQ
What is the code to check my MTN number?
Dial *123*888# from your phone dialer. It is free and your number appears on screen or arrives by text.
Is it free?
Yes. Checking your own number this way is free, and the whatismynumber.io auto-detect tool and apps are free too.
What if it does not work?
Codes can vary by plan or region. Use the fallback: check Settings → About phone → SIM status, or your carrier's app. Or detect your number automatically with the tool.
Other South Africa carriers
Method last verified 2026-06-15 · MTN official help