WhatsApp never tells you that you have been blocked. That is deliberate: blocking is a privacy feature, and announcing it would defeat the point. What you get instead is a set of indirect signs, and none of them is proof on its own.
This guide walks through every sign, what else could explain it, the one test that comes close to certainty, and how a block differs from a deleted account or a changed number.
The five signs someone may have blocked you
Each of these has an innocent explanation. One tick can mean a phone that is off, out of coverage, or out of battery for days. Last seen, profile photo and status can all be restricted to contacts only or to nobody through ordinary privacy settings. A call can fail on a bad connection.
What makes a block likely is all of the signs together, persisting for days. One sign alone tells you very little.
- Your messages show one grey tick, forever. One tick means sent to WhatsApp’s servers; the second tick means delivered to the recipient’s phone. A blocked contact’s messages never earn the second tick.
- You can no longer see their last seen or online status. If you used to see it and it vanished, something changed: a block, or simply a privacy setting.
- Their profile photo never changes. WhatsApp stops showing you photo updates from someone who blocked you; you see the old photo or none at all.
- Your calls never connect. WhatsApp calls to someone who blocked you ring on your side but never reach them.
- You cannot see their status updates or About changes.
The group test: the closest thing to proof
The strongest signal available is trying to add the person to a new group:
- 1
Create a new group
In WhatsApp, start a new group with any willing contact or just yourself and the person in question.
- 2
Try to add the suspected blocker
Select their contact as a participant.
- 3
Read the error
If WhatsApp says it "couldn’t add" the person and suggests inviting them via link, that is the response you get from someone who has blocked you.
Even this is not absolute proof: the same error appears when a person’s privacy settings restrict who may add them to groups. But combined with one grey tick, no last seen and a frozen photo, it makes the picture about as clear as WhatsApp allows.
What looks like a block but is not
- Deleted account: if the person deleted WhatsApp entirely, their chat stays in your list but the profile photo disappears and messages stay on one tick. The difference: a deleted account eventually shows no profile at all when you open the contact.
- Changed number: the old number goes quiet exactly like a block. If the number was recycled to a new owner, you may even see a stranger’s photo appear.
- Muted or archived: muting affects only what the other person hears; it changes nothing on your side. If they simply stopped answering, all the technical signals stay normal.
- Phone genuinely off: travel, a broken phone, a dead battery. Everything looks like a block until the phone comes back online and two ticks appear at once.
What you can and cannot do about it
There is no setting, trick or third-party app that reveals a block with certainty, and apps that promise to are guessing from the same public signs you can read yourself, while asking for your data to do it.
Messaging the person from a different number technically works, because a block applies to your number, not to you. Think before doing it: someone who blocked you made a choice, and routing around it is rarely welcome and, done repeatedly, becomes harassment.
If the contact matters (a customer, a colleague), the practical move is a different channel entirely: email, a phone call, or a mutual contact, once, politely.
If customers are blocking your business number
For a business, being blocked is feedback. Every block also raises the chance of reports, and repeated reports put a business number at risk of WhatsApp restrictions. The fixes are unglamorous: message only people who expect to hear from you, answer fast enough that customers do not feel spammed into silence, honor opt-outs immediately, and keep broadcast frequency low.