No, if someone blocks you on their iPhone, they cannot see new messages you send, as they are silently intercepted and discarded by their device; however, they can still see any messages you sent before they blocked you, and depending on their other devices (like an iPad with text forwarding), messages might appear on those if your email address is used.
SMS is a cellular carrier technology where Apple controls iMessage. If a person blocks you on iMessage, then they won't get any of your texts at all.
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 text someone who blocked you, they won't receive your text. In most cases, you won't see anything special on your end—no notifications that you've been blocked, and the message won't fail. The text will look like it went through, but the person you're texting won't know you've texted them.
When a number is blocked, any incoming messages from that number are not delivered to your device, meaning they do not appear in your messages app at all. Once you unblock the number, you will only receive new messages sent after unblocking.
Blocked messages are not delivered to your inbox at all. Unlike some messaging apps, iPhone does not keep a hidden folder of blocked messages. This design ensures maximum privacy and eliminates potential risks.
Unlike blocking, which can feel extreme, restricting allows users to manage potentially negative interactions discreetly. This feature ensures that users can maintain boundaries while still monitoring comments and direct messages, providing a balanced approach to online engagement.
If the person you're calling has blocked anonymous calls, *67 won't work either. While *67 hides your number from the person you're calling, phone companies can still trace the call.
If you're blocked by someone, your calls will go straight to voicemail, and your voicemail messages will head to the “Blocked” section immediately. The other person won't receive your calls, won't be notified you called, and won't see a badge for your voicemail.
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).
Check the chat bubble color
This is only true if both of you use iMessage on iPhones. This isn't a foolproof method. You may see a green bubble in the following situations: If the other person switched to an Android phone, their bubble may have turned green.
Muting helps you ignore someone without preventing them from doing anything. Blocking someone prevents them from messaging you, commenting on your observations, identifying your observations, and otherwise interacting with you on iNaturalist.
When you block a phone number or contact, they can still leave a voicemail, but you won't get a notification. Messages that are sent or received won't be delivered.
This Vertical Service Code, *82, enables calling line identification regardless of subscriber preference, dialed to unblock withheld numbers (private callers) in the U.S. on a per-call basis.
Top 4 Ways to Text Someone Who Blocked You on iPhone
On iPhones running iOS 16.5 or later, the space below your last text will say Delivered whether you're blocked or not on iMessages. If your phone is running iOS 16.4 or earlier and you see Delivered beneath your last text, you're not blocked.
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.
There are a couple of indicators that you may be blocked:
Technically, they can still send an SMS message to your phone number, and they'll see the regular delivery status at their end, just like with any other texts they send. But you won't receive the message in your phone's main SMS inbox, essentially blocking the contact at your end.