You can tell if someone blocked you without texting by observing call behavior (rings once then goes to voicemail) and checking text message delivery statuses (no "Delivered" notice on iPhone, single gray check on WhatsApp). The most definitive test is calling from a different number or using *67 to hide your Caller ID; if it rings normally, you're blocked on your main number, but if it still goes straight to voicemail, they likely aren't blocking you and have their phone off/busy.
Here are some of the main ways to tell if your phone number is blocked:
One of the quickest ways to tell if you've been blocked is to call the person you're trying to reach. If the call rings once and then goes to voicemail, this may mean you're blocked. Your call may also go to voicemail after one ring if their phone is switched off, dead, or set to Do Not Disturb mode.
An easy way of knowing you've been blocked is to send a message with read receipts on. If the message doesn't say delivered that means you're blocked. Calling is slightly different, it rings a couple times and goes to voicemail. You can leave a message which they will get but they won't receive a notification for it.
You can suspect someone blocked you on an iPhone if calls go straight to voicemail (maybe after one ring) and iMessages don't show "Delivered" or "Read" receipts, but these signs can also mean their phone is off; the most reliable test is trying to call them using a different number or *67 to hide your caller ID, and if it rings normally on their end but goes to voicemail from your real number, you're likely blocked.
If you're not blocked, the phone should ring anywhere from three to twelve times before going to voicemail. A blocked number may ring only once and then go to voicemail. (NOTE: It's also possible that the person is on another call, has their phone turned off, has a low battery, or has it set to airplane mode.)
Signs Someone Blocked Your Phone Number
You don't see "Delivered" or 2 checkmarks under sent texts (Android). Your calls go through when you call from a different phone number. The person no longer shows up in suggested contacts (Android). You're blocked on social media.
This star code will unblock your caller ID for a single outgoing call if you have previously used *61 to block caller ID for all outbound calls.
When someone blocks you, their profile photo may disappear or stay the same for a long time. Sometimes, you might still see an old photo because your phone has saved it. If you tap the photo and it disappears, this can be a clue that you are blocked. However, missing profile details do not always mean blocking.
Check your text thread to see if your messages recently went from blue to green. Unless the other person recently switched from iPhone to Android, this is a sign that the other person has blocked you on iMessage. Save $100 on an unlocked 256GB Apple iPhone 15 at Best Buy with activation via AT&T or Verizon.
However, the big distinction is that, unlike with a Block, Ignore will still let them see your profile and activity and allow them to send you messages (which you won't know about unless you unhide them).
The person you blocked will not realize you blocked them when they try to call you. On their end, they'll hear the phone ring a few times. Then, their call will go straight to voicemail.
*67 is still being used in 2026. It is still the simplest way to hide your phone number from showing up on the recipient's phone. The code works well with all landlines and smartphones, but not with texting or calling toll-free numbers, emergency numbers, and international numbers.
Signs you may have been blocked
If you have an iPhone and text another iPhone but don't see a “Delivered” notification, someone may have blocked you. (Android phones don't automatically show these messages.) The same goes for if you consistently see a green text bubble instead of a blue one on your iPhone.
Dialing *77 activates Anonymous Call Rejection, blocking incoming calls from private or blocked numbers on landlines and some mobile services, making anonymous callers hear a message that you don't accept their calls. To turn it off, dial *87, and remember that this feature only blocks intentionally hidden numbers, not calls marked as "Unavailable" or "Out of Area," and can sometimes route to emergency services in certain areas or for specific carriers, so check with your provider.
The simplest and most common way to call someone who's blocked you is by hiding your caller ID. When you do this, your call appears as “Private,” “Unknown,” or “No Caller ID” on the recipient's screen. How to do it: In the U.S. and Canada, dial *67 before the number you're calling (for example, *67 555-123-4567).
“How to call back no caller ID” is a popular search, and there's an easy answer. To call back the last private number that called you – whether you answered it or not -- simply dial *69 and it will dial it back. It will also unmask the number, if it's been blocked from caller ID.
Signs someone blocked your number
Method 1: Using caller ID restriction. Method 2: contacting through a different phone number. Method 3: Sending text messages or emails.
You can suspect someone blocked you on an iPhone if calls go straight to voicemail (maybe after one ring) and iMessages don't show "Delivered" or "Read" receipts, but these signs can also mean their phone is off; the most reliable test is trying to call them using a different number or *67 to hide your caller ID, and if it rings normally on their end but goes to voicemail from your real number, you're likely blocked.
Or if the person's phone is off, you'll go straight to voicemail when calling someone who hasn't blocked you. When your number is blocked, you'll find that you'll get one ring and then the call will go to voicemail. However, even if you leave a voicemail, it won't go to the recipients inbox.
Q: Do blocked contacts know they've been blocked? No, blocked contacts are not notified. Their calls will go straight to voicemail, and texts will appear to send as normal (but you won't receive them).