You can tell if someone has blocked your number by observing several signs related to calls and messages, though none are 100% definitive alone. Together, they form a strong indication:

Signs You May Be Blocked

• Calls go straight to voicemail or ring once briefly before voicemail. If your calls immediately divert to voicemail without ringing or ring only once, it often means your number is blocked. However, this can also happen if the person's phone is off, on Do Not Disturb, or has no signal

• Text messages are not delivered. On iPhones, if your iMessages to the person never show "Delivered" or "Read" receipts and remain blank underneath, it suggests blocking. On Android, undelivered texts or messages stuck in pending status may indicate blocking, though delivery status is less reliable on Android

• Your calls ring normally when dialed from another number or with caller ID hidden. If your calls go straight to voicemail from your number but ring normally when you call from a different phone or by hiding your caller ID (*67), it strongly suggests you are blocked

• No read receipts on messaging apps. Apps like WhatsApp, Telegram, or Viber show only a single checkmark (sent but not delivered) if you are blocked. Similarly, no read confirmations on iMessage or other apps can be a sign

• Voicemail behavior. You can still leave voicemails when blocked, but the recipient may not be notified of the missed call. Voicemails may be stored separately for blocked numbers depending on the phone system

How to Check

• Try calling the person from your phone and note how many rings before voicemail.
• Call the same person from another phone or hide your caller ID and compare.
• Send a text message and check for delivery or read receipts.
• Use messaging apps to see if your messages are delivered or read.

What to Do If Blocked

If you confirm you are blocked, respect the person's decision and avoid pushing for contact. You may try reaching them through other channels if appropriate, but be considerate of their boundaries

. In summary, consistent immediate voicemail redirects, lack of message delivery/read receipts, and calls ringing normally from other numbers are the best clues that someone has blocked your number