Unfortunately, there is no way to hide your phone number on WhatsApp. The app requires your valid phone number to let you login into the service. But that doesn't mean you can't hide your current number from your contacts.
Your profile name will be visible to users in groups who don't have your contact information saved in their phone's address book. Go to WhatsApp Settings. Tap your profile photo.
Well, the trick involves practically one step! Go to Settings, click on 'Privacy' and turn off the Read receipts. Now, if you check someone's status, he or she will not be able to see your name on the list of people.
To do this, open WhatsApp and go to Settings > Account > Privacy. You can toggle the 'Read Receipts' option to off. This method works for both Android and iOS devices. Now, when you view someone's status, they will not receive a notification that you have seen it.
Open your phone's Settings, then tap Apps & notifications > WhatsApp > Permissions. Make sure all permissions are turned on. If the issue still isn't fixed, please contact your phone's manufacturer for more information regarding security permissions on your phone.
Privacy settings allow you to hide your last seen and online, profile photo, about, status, or read receipts. You might not be able to see someone else's information because of how they've set their privacy settings.
Use the *67 code
Specifically, adding *67 to the start of any phone number will block your caller ID when you call that number.
Use Settings on iPhone
To achieve this Keyser Soze-style vanishing act open the Settings app and scroll down to select Phone > Show My Caller ID, and then toggle off the Show My Caller ID switch.
In the upper-right hand corner of the Chats section, tap the "Compose" button to launch a new chat, which will automatically bring up your list of contacts. 4. Tap the Search bar at the top of the screen and begin typing the name of the person you want to find, then tap on the contact's name once you find them.
When you block someone: Your last seen, online, status updates, and any changes made to your profile photo will no longer be visible to contacts you've blocked. Messages, calls, and status updates sent by the contact won't show up on your phone and won't be delivered to you.
False identity: Although there is no requirement to use your real name in WhatsApp, you are not allowed to pretend to be someone else. However, nicknames and abbreviations are allowed.
If the person you are texting has you saved in their contacts with your Google Voice number, they will see the name as they have it saved in their contacts app.
After you block someone, they won't be able to mention your username or tag you.
You can no longer see a contact's last seen or online in the chat window. Learn more here. You do not see updates to a contact's profile photo. Any messages sent to a contact who has blocked you will always show one check mark (message sent), and never show a second check mark (message delivered).
Tap the person's name at the conversation to view their profile. When you are blocked on WhatsApp, a user's profile will never change to you. If you have reason to believe that this user has changed their status or profile photo and you can't see the changes, you may have been blocked.
If you can't see the person's profile photo, you might be blocked. WhatsApp says that once a person has blocked you, you won't see updates to their profile. Some WhatsApp users state that they can't see the profile photos of people who've blocked them at all.
Many people wonder if they can see the profile picture of the contact if they have been blocked. Once you have been blocked, you will no longer be able to see the profile picture of the person.
When you block someone: Your last seen, online, status updates, and any changes made to your profile photo will no longer be visible to contacts you've blocked. Messages, calls, and status updates sent by the contact won't show up on your phone and won't be delivered to you.
Calling is an easier way to determine if someone blocked your number. First, call from your phone number. If the call goes to voicemail, listen to the message. If you receive a message that the number is unavailable, it generally means the recipient blocked you.