How to block a number and hide your caller ID on a Xiaomi phone (HyperOS 3)

Device

Android

Shown on

Xiaomi Redmi Note 15 Pro 5G (25080RABDG), HyperOS 3.0.308.0, Android 16

App

Phone

Path

Phone › Settings › Blocked numbers › Add a number

Real screenshots

7 of 7 steps

Checked

October 2026

Sources

2 official, linked below

Step by step

1. 

   Open the Phone app's settings

   In the Phone app, tap the three dots at the top right and Settings. Tap Blocked numbers.

   Done

2. 

   Add a number

   Tap Add a number and type it. Turn on Unknown to block calls from unidentified callers too; it was off on ours.

   Done

3. 

   Tap Calling accounts

   Back in Settings, tap Calling accounts.

   Done

4. 

   Tap Advanced settings

   With one SIM, Call settings opened straight away, in Xiaomi's style; there was no SIM to pick. Tap Advanced settings, below Auto-answer.

   Done

5. 

   Tap Caller ID

   Under Other, Caller ID says Hide my number for outgoing calls (confirm that your carrier supports this feature). Tap it.

   Done

6. 

   Tap Caller ID again

   The Caller ID page has one row: Use default operator settings to display my number in outgoing calls. Tap it.

   Done

7. 

   Choose Hide number

   The options are Network default, Hide number and Show number. Ours was on Network default. Tap Hide number. We tapped Cancel.

   Done

If you do not see this option

• Phone app looks different? Xiaomi's own route is the Security app: Security, Blocklist, Blocked numbers. It also blocks calls from strangers or hidden numbers. Source: Generic User Guide for HyperOS 3.0
• Two SIMs? Our phone has one SIM, so Calling accounts went straight to Call settings. With two SIMs you may be asked to pick one first; we could not check.

If this does not work

• Blocked callers missing from call history? Google says calls from a blocked number won't show in your call history. Source: Block or unblock a phone number
• Hide number does nothing? The Caller ID row says to confirm that your carrier supports it. Network default leaves it to the carrier.
• Unblock someone? Open Blocked numbers and clear the number. Source: Block or unblock a phone number

About this guide

Our phone uses Google's Phone app. Blocking and Caller ID are both in its settings.

The screenshots are from our Redmi Note 15 Pro 5G with Xiaomi HyperOS 3.0.308.0 and Android 16, in Light mode. It has one SIM. We only opened these screens and changed nothing.

Good to know

Phone and SIM settings: how to turn on VoLTE on a Xiaomi phone.

In short: Phone, Settings, Blocked numbers, Add a number. Calling accounts, Advanced settings, Caller ID, Caller ID, Hide number.