12 Reasons Why Your Text Message Didn't Get Delivered

Written on Mar 17, 2022.

1. You’ve entered a wrong number

You’d be surprised how often this happens.

2. 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.

3. The recipient opted out of messages

Most platforms offering SMS have a built-in system for recipients to opt out of messages.


Why your text message didn't get delivered


4. You need a different type of phone number

There are two types of messaging —A2P (application-to-person) and P2P (person-to-person). And these types require different kinds of phone numbers.

Bulk Solutions only supports A2P messages 

5. Your message was flagged as Spam by the recipient’s carrier

With the rise of text messaging, carriers started protecting their subscribers from SMS spam. Similar to how your email provider moves messages they think are suspicious to the Spam folder.   Except those text messages don’t get delivered to you at all. They simply get filtered out by your carrier.

6. Here are some of the common reasons why messages get filtered out:


- You’re sending suspicious links, especially if you’re using a URL shortener like bit.ly, tiny.url, etc.

- You’re sending a lot of messages with the same content.

- You’re sending overly long messages. Every SMS segment is 160 characters long so if you’re sending an essay, that’ll raise a red flag for the receiving carrier.

- Using all caps in your messages like “SIGN UP NOW FOR FREE”. This both looks suspicious and isn’t effective.

7. You’re sending too many messages

Similar to the point above, if you’re sending a lot of text messages and are doing SMS blasts, your messages might be caught in the spam filter. 

8. The message contained illegal content

If you’re sending messages with illicit content, such as adult content, references to drugs, or anything referring to criminal activity, they can get blocked by the receiving carrier. CTIA (Cellular Telecommunications and Internet Association) is a regulatory body that enforces guidelines for SMS messages. You must ensure that the content of the messages you send complies with all applicable laws of the jurisdiction in which the message recipient is located.

9. You’re texting a landline

Despite all advances in technology, there are still landline phones. They don’t support messaging and are limited to calls only. If you’re texting a landline, your message is most likely not getting delivered.


Why your text message didn't get delivered


10. Network problems with the recipient’s carrier

While not that common of an issue, sometimes there are problems with the recipient’s carrier network that can halt delivery.

11. Billing issue on the recipient’s carrier side

Although this rarely happens, it’s possible that you’re texting someone on a pre-paid plan who has an outstanding balance on their account. Many carriers offering pre-paid plans block these accounts from receiving messages until the balance is paid.

12. Your script did not send the message

Simple and it does happen. Have your engineers make sure they sent the message in order to be completed. We see customer processes crash and they need to be reset.

We support all telecommunication services and needs. Please remember to keep Bulk Solutions in mind for your telecommunication needs where we value Quality and Reliability above all else.

We support all telecommunication services and needs. Please remember to keep Bulk Solutions in mind for your telecommunication needs where we value Quality and Reliability above all else.