How can I find someone's last name using their phone number in WhatsApp?

How can I find someone's last name using their phone number in WhatsApp - briefly?

To find someone's last name using their phone number on WhatsApp, you can simply search for the contact by their phone number. Once you find the contact, their full name should be displayed alongside their phone number.

How can I find someone's last name using their phone number in WhatsApp - in detail?

To find someone's last name using their phone number on WhatsApp, you can follow these detailed steps:

  1. Save the Contact: First, save the unknown contact with their phone number to your device's contacts list. This step is crucial because WhatsApp syncs with your device's contacts and displays names accordingly.
  2. Check WhatsApp Contacts: Open WhatsApp and go to the "Contacts" tab. Here, you might find that WhatsApp has automatically matched the saved number with an existing contact in your phone book. If so, their name, including the last name, will be displayed alongside their profile picture.
  3. Check Message History: If the contact has messaged you before, open the chat history by clicking on their profile picture or name in the "Chats" tab. Sometimes, WhatsApp displays the full name of a contact at the top of the chat screen, even if it wasn't visible initially in the contacts list.
  4. Ask Directly: If the above methods don't work, you can ask the person directly for their last name. You can do this by sending a polite message such as: "Hi, I noticed your contact name is incomplete. Could you please provide me with your full name?"
  5. Use Third-Party Apps: If all else fails and you're still determined to find out the person's last name, you might consider using third-party apps or services that claim to reveal information based on phone numbers. However, be cautious with these methods as they can raise privacy concerns and may not always provide accurate results.

Remember, respecting someone's privacy is essential. If a person chooses not to share their last name, it's important to accept and respect their decision.