The recipient blocked your phone number While this is rare, it happens. If the recipient blocks your phone number from contacting them, your message won't be delivered. If you don't see a 'Delivered' or 'Read' notification, this is a likely explanation.
Actually, iMessage not saying “Delivered” simply means the messages have not yet been successfully delivered to the recipient's device due to some reasons. Reasons could be: WiFi not working on iPhone/iPad or the iDevice don't have cellular data networks, they have their iPhone off or on Do Not Disturb mode, etc.
“The last message that you know was received and responded to…should have a 'delivered' status,” Lavelle explains. If, under the messages you've sent after that, you don't see that “delivered” notification, that could mean that person has blocked you.
If you send a message as a regular SMS in the green text bubble and you do not get a “Delivered” notification but instead get a notification similar to “Message not Delivered” or no message at all, that means you were probably blocked.
The most common reason text messages are not delivered properly is if the phone number is invalid. This reason makes sense as there's no way for the message to reach the right person. Usually, your phone carrier will alert you of an invalid number unless you have typed in the wrong number.
The recipient blocked your phone number
If the recipient blocks your phone number from contacting them, your message won't be delivered. If you don't see a 'Delivered' or 'Read' notification, this is a likely explanation.
A red flag that you've been blocked is when you don't see the delivery status or the read receipt at all. The message you just sent will still be in a blue bubble, but it will have no delivery status below it – not even a "Not Delivered."
If the text message says delivered, that just means that it made it to its destination safely. If the recipient hasn't opened it, then it wouldn't show as “read”. There would be no indicator on your end that you were blocked.
Why does my text say delivered but not read? It is possible that your text was delivered to the recipient's phone, but they may not have opened it yet. If your message is urgent, you can try sending another text or calling the person directly.
Check the Bubble Color
If you don't see a blue bubble on your end, then it's likely that they've blocked you on iMessage. It's important to note that this doesn't mean they have blocked your number altogether; it just means they have blocked you from sending them messages over iMessage.
Delivered means delivered. If your message has been blocked, you will never know unless the recipient tells you you are blocked. The only difference may be if their device was set up to send Read Receipts, if it suddenly just starts saying "Delivered" that means they either blocked you or they shut Read Receipts off.
There are several reasons for this: The person that you sent the message to doesn't have an Apple device. iMessage is turned off on your device or on your recipient's device. To check if iMessage is turned on for your device, go to Settings > Messages > iMessage.
Your old messages remain blue, but the latest texts you send after they've blocked you turn green. However, the bubble colors aren't accurate clues. They could mean the recipient turned off their phone, gone offline, or switched from iOS to Android.
iMessage settings allow users to turn on read receipts for certain contacts while keeping them turned off for others. Assuming you only see the word 'Delivered' in grey under the message you've sent, the recipient has turned their read receipts off.
It does NOT mean the recipient has opened it, merely that it was delivered. If you are sending to device on another carrier, you won't see "delivered" since it's another network, and Verizon can't see if it was successfully delivered to the device.
On an Android
First, open your Messages app and navigate to the settings. Depending on your phone model, operating system, and cellular provider, you will notice one of the following: Read Receipts, Send Read Receipts or Request Receipt. Turn on the applicable option.
First things first: people are not notified when you block them. As soon as you block someone on iPhone, they lose the ability to text or call you. Except the blocking happens at the level of your device. So the person who was blocked won't know they're blocked when they try to call you.
Call them. If you need to know, you can append *67 before the number you believe blocked you. This hides your phone number from the recipient, letting the call go through but listing the phone number as Private number, Blocked, or Unknown caller (essentially, you'll look like a spam 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.
When someone switches to a new device that doesn't run on iOS, they may leave their phone number in the app. In that case, you may not get the “Delivered” tag if you message them, but the message bubbles will be blue.
The appearance of a second gray checkmark shows your message was delivered to the recipient's phone. The two checkmarks will turn blue if the recipient has viewed your message. To turn off this feature, click Settings and tap Account. Choose the Privacy option and disable Read Receipts.
If you inquire why the message hasn't been delivered yet and the phone is ringing, you should consider that the receiver may lack a working internet connection. The user's lack of active internet access inhibits the delivery of the message.
Call your contact back with a masked number.
If the call goes through like usual--e.g., five or more rings--then your contact has blocked your number. If the call still stops after a ring or less and diverts to voicemail, your contact's phone is dead.
If you have text message fallback enabled, your device will resort to sending the message as a text, meaning the bubble will turn green after someone blocks you. If you are not blocked, then the bubble will turn blue.