How do I block and unblock a contact on WhatsApp?

Applies to: WhatsApp Messenger (Android, iOS)
Last updated: September 2025

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Problem

You may want to stop someone from calling or messaging you on WhatsApp without deleting your account or changing your number. Later, you might decide to unblock them.

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Solution

WhatsApp allows you to block contacts so they can’t send you messages, view your last seen, status, or profile photo. You can unblock them anytime.

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Step-by-step Instructions

Step 1: Block a contact

1. Open WhatsApp.
2. Go to the chat with the person you want to block.
3. Tap their name/number at the top.
4. Scroll down and tap Block Contact.
5. Confirm by tapping Block.

Alternative method:

1. Open WhatsApp > Settings > Privacy > Blocked Contacts.
2. Tap Add New.
3. Select the contact to block.

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Step 2: Unblock a contact

1. Open WhatsApp > Settings > Privacy > Blocked Contacts.
2. Tap the contact you want to unblock.
3. Select Unblock.

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Optional Methods or Tools

• You can also report a contact while blocking them: this sends the last few messages to WhatsApp for review (useful for spam or abuse).
• On WhatsApp Web/Desktop, blocking and unblocking must still be done from your phone.

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Best Practices / Tips

• When you block someone:
  • They can’t see your Last Seen, Online status, Profile photo, or Status updates.
  • Messages they send won’t be delivered (only one gray tick appears).
• Blocking doesn’t remove them from your contacts — you’ll need to delete their number from your phonebook if you want them completely gone.
• You won’t receive notifications of blocked messages or calls, keeping your privacy intact.