If you have received a smartphone like the Samsung Galaxy S10 with a new mobile phone contract, it is possible that your phone number is also new and you cannot yet remember it.
If this is the case and you do not know your own phone number by heart, you can look it up in the Android operating system as follows.
Look up your own phone number in the Android system
1. Open the settings on the Samsung Galaxy S10
2. Scroll to "Phone Info
3. You should now be able to see your own phone number under "Phone number
If you can't see your own number here, but can see "Unknown" instead, this is due to the sim card of your mobile phone provider.
Not all providers integrate the information for the phone number into their Sim card. This is especially the case with mobile providers such as Premium Sim, Congstar, Klarmobil etc. Providers such as O2, Vodafone and T-Mobile should have this information integrated.
Alternative: Save phone number in contacts app
You can maintain your own contact in the Contacts App of the Samsung Galaxy S10 in the overview and enter your phone number there.
You will then know how to look up your own phone number on a Samsung Galaxy S10 smartphone.