Q: iMessage is not showing my phone number

If that doesn't work sign out of your apple id under Settings > Facetime.  Settings > general > reset > Reset all settings (won't delete data but It will remove your wallpaper and passcode.)

Then log back in under FaceTime.

Now look at the settings.

Hello,

I really did all the above steps but my phone number still not listed in the Imessage !

What shell I do?

I don't want to format my phone!

Check Settings > Phone > My Phone Number is correct

Yes, my phone number is correct !

Sync to your iTunes computer and see whether the right phone number appears there

If you can't make or receive calls on your iPhone - Apple Support

If you get an alert about the SIM card in your iPhone - Apple Support

If you can't connect to a cellular network or cellular data - Apple Support

If you can't send or receive messages on your iPhone, iPad, or iPod touch - Apple Support

If you get an error when trying to activate iMessage or FaceTime - Apple Support

as you can see, the Icloud email is working and i can send through it bu there is no phone number !!

At the same time it shows that my Imessage is waiting for activation.

There were lots of links above from Support? Did you check them?

Here you have some others which could be useful and related to your issue:

Add or remove your phone number to iMessage or FaceTime on your Mac, iPad, and iPod touch - Apple Support

Check your Apple ID account registered with the right number at

https://appleid.apple.com

I access to the Itune application and the number is right

Sorry, I don't know what you mean. iTunes Store app does not show your phone number anywhere. Do you mean the App Store app settings? Again, check that in the website where you can manage your Apple ID. You may need to restore your phone fully.

I accessed this the last two links you mentioned thus I wrote my problem here !

unfortunately no thing is working

I am about to sign out from my Icloud account so may it help but I am afraid to lose the data

yes,

it do show see the picture below please.

it indicate my number.

<Image Edited by Host to Remove Personal Information>

That's OK, please remove the picture as it contains your serial number which is considered sensitive information.

Now if the Apple ID page shows likewise, restore your iPhone from a backup prior to the SIM card change.

Thank you for your advice. I think somebody did remove the picture .

For now I did back up my data and gonna sign out from Icloud is that right ?