About Phone doesn't display phone numbers on M31

[timkamat]

Why does my Galaxy M31 does not show the phone number on my About Phone screen?

[MrDragone]

coz you're not using jio .Airtel and vi haven't that feature to detect Mobile number for any kinds of device. you can try jio than you will show your own number on that's device.
as i look your screenshot 1.sim is vi and 2.sim is airtel
*If that it your solutions than click 3 dot and accept tha solutions.*

[SushmaKamat]

oh, is it? I have Airtel and my number is showing in that page.
refer the screenshot attached.......

1-airtel
2-jio 4g

[YashAgarwal]

Only jio is able to show phone numbers

[SushmaKamat]

check above screenshot for Airtel and Jio.

[Anikroyale]

It will show numbers only if you have a 128k sim.

[SushmaKamat]

sorry to state that it is t showing up on my 128 KB SIM card on my M31 as well