Will the blocked contact know they have been blocked?

Oppo does not send any notification to the blocked person. Calls typically fail silently on their end, and text messages simply never reach you, without any visible warning that they have been blocked.

Where can I see all the numbers I have blocked?

Open Contacts ➔ Open the Menu and look for the blocked numbers list, which is the same screen used to add or remove a block. Every number you have blocked appears there until you unblock it.

Can I block a phone number that is not saved as a contact?

Yes. Blocking is tied to the phone number itself, so you can add an unsaved number to the block list the same way you would block an existing contact, through the block numbers option.

What happens to messages I already received before blocking someone?

Existing messages and call history stay in your apps exactly as they were. Blocking only prevents new calls and texts from that number going forward; it does not delete past conversations.

Oppo

Oppo: Block or Unblock a Contact

If a contact keeps calling or texting you and you want it to stop, blocking them cuts off calls and messages without deleting the contact. On Oppo phones this option sits inside the Contacts app rather than a dedicated blocklist screen, so it is easy to overlook. Unblocking later restores calls and texts from that number right away.

Updated: 07.08.20264 min5 steps

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Oppo

Block or Unblock a Contact auf Oppo

Blocking a contact on an Oppo phone silences both calls and text messages from that number, but it does not remove the contact from your address book. The setting lives inside the Contacts app itself, which is why many people search for a separate blocklist without finding one.

To block someone, open Contacts ➔ Choose a Contact ➔ Open the Menu ➔ Tap on Block numbers ➔ Tap on Block. Once confirmed, calls from that number go straight to a rejected state and text messages no longer trigger notifications.

Unblocking works the same way. Go back through the same menu, find the number in your blocked list, and remove the block to restore calls and messages immediately.

This function only affects the native phone and messaging apps that come with ColorOS. It has no effect on third-party messengers like WhatsApp or Telegram, since those apps run their own blocking systems separately from the Android dialer.

If someone keeps reaching you through a chat app after being blocked in Contacts, you need to block them inside that specific app as well.

Frequently asked questions

No. Blocking through Contacts only affects native phone calls and SMS/MMS messages. Chat apps like WhatsApp manage their own block lists, so you need to block the same person separately inside those apps.

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Oppo: Block or Unblock a Contact

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Block or Unblock a Contact auf Oppo

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