What is My Number.io
How to check your own number on Vodafone UK
To check your own Vodafone UK number, open your phone dialer and dial *#100# — it's free and your number shows on screen (or arrives by text). If that doesn't work, Open Settings → Phone (iPhone) or About phone → SIM status (Android), or the My Vodafone app. 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 *#100# 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 UK mobile number appears instantly on screen — no call is placed.
If that doesn't work
Open Settings → Phone (iPhone) or About phone → SIM status (Android), or the My Vodafone app.
Free to dial; your number appears on screen.
What your United Kingdom number looks like
A United Kingdom mobile number is mobiles start 07 (11 digits national), written +44 7XXX XXXXXX — for example 07400 123456 / +44 7400 123456. 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 Vodafone UK
Vodafone UK is one of Britain's big networks and the original *#100# 'know your number' pioneer. Following the 2025 merger with Three UK it now sits under VodafoneThree; account help is on 191 or the My Vodafone app.
Vodafone UK quick facts
| Carrier | Vodafone UK |
|---|---|
| Also known as | Vodafone |
| Network type | Mobile network operator (MNO) |
| Parent company | VodafoneThree (Vodafone Group / CK Hutchison) |
| Country | United Kingdom |
| Customer care | 191 — free from a Vodafone phone |
| Self-number method | *#100# (USSD) |
FAQ
What is the code to check my Vodafone UK number?
Dial *#100# 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: Open Settings → Phone (iPhone) or About phone → SIM status (Android), or the My Vodafone app. Or detect your number automatically with the tool.
Other United Kingdom carriers
Method last verified 2026-06-15 · Vodafone UK official help