There's no definite way to tell if you've been blocked on WhatsApp, but there are a few warning signs. When someone blocks you on WhatsApp, you won't be able to call them and they won't see your messages.
Blocking a contact won't stop that user from seeing your messages in a group you both participate in, and you'll see their messages in that group as well.
Blocking someone on WhatsApp means you will no longer receive messages and calls from them. Someone you've blocked can't see your "last seen" timestamp or status and profile picture updates. There's no direct way for someone to know you've blocked them – WhatsApp doesn't notify them.
When you block a contact over Android or iPhone, they will still be able to send you text messages. These messages will not show up on your phone but the sender will see the messages as sent. They won't know that they've been blocked.
You can send messages to someone on WhatsApp despite being blocked without. You will just need the assistance of a common friend in this case. You can request your friend to form a WhatsApp group in which you and the individual who blocked you have been added.
If an Android user has blocked you, Lavelle says, “your text messages will go through as usual; they just won't be delivered to the Android user.” It's the same as an iPhone, but without the “delivered” notification (or lack thereof) to clue you in.
Blocked messages will not come through when unblocked.
While someone is blocked, any sent text messages will be blocked by Messages. You won't be able to retrieve them. If you decide to unblock the person, you will receive the texts normally.
The only way to see a call history from a blocked number is to unblock the number. They will be added to your regular call list, and you will be able to see any missed calls you receive from the number. However, they will be able to contact you again. Consider if it's worth your privacy.
WhatsApp's block feature allows you to block or unblock someone. If someone doesn't want to receive your message anymore, he or she can easily block you. Though WhatsApp provides block/unblock facilities, it doesn't send any message to any person notifying that he or she has been blocked by someone.
One way to test this situation is to leave a voicemail and wait. If you've been blocked, the recipient will not receive a notification and won't be able to respond. If you don't receive a returned call or text message within a few days, there's a good chance you may be blocked.
Thus, if you have been blocked, you will no longer send texts, nor can you view their profile picture. You will also not see their last seen activity and even they will also be barred from seeing your last seen until they unblock you and you will also not be updated about their status update.
If you have been blocked by a contact on WhatsApp, you may initially be able to see their profile picture, status updates, and last seen status. However, if the contact has changed their privacy settings to not allow blocked contacts to see their profile picture, then you will no longer be able to see it.
Check WhatsApp Profile of the person
The first and foremost indication that someone has blocked you comes from a missing WhatsApp profile picture, status and last seen. If these are missing or you are just seeing the same image as you have set in your contacts, it might be that the person has blocked you.
The blocked party won't get a notification that they've been blocked, but if they call your landline they may hear a busy signal, or a message that their call couldn't go through or that the number is busy. Which variation of this they hear will depend on the carrier.
A green bubble could also indicate that someone blocked you, especially when the bubbles have always been blue. When blocking occurs, iMessage sends your text, but the recipient never receives it. Your old messages remain blue, but the latest texts you send after they've blocked you turn green.
In some cases, a persons phone might be off, out of range, or not connected to the network, so the message has gone from your phone to the message server, but is not yet to the persons phone. Once the data has actually been received and retained by the phone or device, it has been delivered.
Using Dual WhatsApp
Once you have enabled dual apps, open the second app and set up a new account with a different mobile number. Once you have set up the account, you will be able to contact the person who has blocked you.
Usually, when a person blocks you, they don't want to speak or interact with you. While this is the typical implication of getting blocked, he might have used the block button to get your attention. Sometimes, getting suddenly blocked could be a desperate move for him.
To temporarily unblock your line so your call will be accepted: • Press *82, then dial the telephone number you're calling. Your identity will be shown on the recipient's Caller ID display. Line Blocking will be reactivated when you hang up from this call.
Blocking someone on WhatsApp is a great way to protect yourself from unsolicited messages. However, blocked contacts won't be able to send you messages, which is a bit of a bummer. If the person is unblocked, they'll be able to see your messages but won't be able to respond to them.
Basically, when you block a number on your Android or iPhone, you won't receive regular phone calls from it. That is, the calls from the blocked number will be declined automatically. On some networks, the calls are sent to Voicemail but don't worry, you won't receive voicemail notifications either.
The psychology of blocking someone can evoke indignation and a sense of rejection, reminiscent of the social dynamics of high school. Blocking someone sends a clear message, but it's a cowardly move to run away and hide behind our devices.