SMS Error Code List

SMS means short message service and the error codes are a series of numbers that are sent to a mobile phone to indicate a problem with the process of sending the message. Often, these text message error codes are ignored, and not many are aware of what they actually mean.

Sending SMS is one of the simplest forms of communication around the globe. A person will just key in a 160-character message, put the mobile number of the recipient and send it. The receiver will get the message in real-time. For these reasons, many people still rely on using SMS to send important messages instead of calling or emailing.

But what if the recipient did not receive the message? Will the network let the sender know of any errors? Networks generally send out codes that indicate a specific error in the process of sending out the message. This article will give you the most common Text Message Error Codes that you might have already encountered and their meanings.

What is a SMS Error Code?

SMS error code is a number that is sent out whenever there is a problem with the process of sending messages. These sms error codes are like indicating an outcome of what went wrong in the process of sending messages.

There are different codes that senders receive when a message fails to be delivered. These numbers indicate the reason for the delivery failure.

Some network providers have their own list of error codes for different messaging issues. But the most common text message error codes are used across providers and are understood anywhere in the world.

SMS Error Code List

An SMS Error code list such as the one indicated below can help users know more about the problems and reasons for the issues encountered in sending messages. When senders receive codes, they are informed about the status of their message and they can act accordingly if there is a problem. 

Here is a quick list of the text message error codes from a network carrier.

002Message cannot be delivered.
006 or 61Message expired, i.e., the message could not be delivered within the specified time span.
010Message rejected, i.e., the message could not be delivered by our network carrier
011The message could not be delivered. The network is in the process of resending. Please wait for one of the above final statuses.
013Same as 010.
020Same as 010.

Examples of Text Message Error Codes

An Example SMS Error Code would be “23”. This code means your message is shorter than 160 characters and if you send it, it will be rejected. Likewise, some codes are not necessarily mean errors. For instance, codes 400 and 401 means that the message is not yet delivered – but are either queued or dispatched. 

Here are some other sms error codes that you might have received.

 text message error codes
 text message error codes
text message error codes

What is the SMS Error Code for Invalid Message?

The SMS error code for invalid messages is “10.” A sender will receive this code when the message being sent out is rejected by the downstream carrier because it is an invalid message.

An invalid message may not appear to be an SMS or does not have any data on it.

To prevent this from happening, senders should follow the proper encoding flag for sending SMS. Those using SMPP, messages should follow the correct UDH.

What is the SMS Error Code for Network Error?

The SMS error code for network error is “20.” It means that the network carrier is experiencing network issues and was not able to deliver the message. This is a temporary error and senders can try sending the message at a later time.

A sender will receive this code when the message being sent out is rejected by a downstream carrier because it has a connection issue with their network

To avoid getting sms error codes like this one, you should first check if your messages can pass through the network. Call the server you will be sending your message to and ask them if their system is working. Request them as well for a verification code to make sure that the connection was successful.

Ideally, you can also check if the signal is working properly on another device. Check your phone settings and select reset mobile network. Senders may also try refreshing or resetting the network several times to get it working again.

What is the Text Message Error Code for Spam Detected?

The SMS error code for spam detected is “30.” This is one of the most common reasons for delivery failure in SMS. Many network carriers have spam filters that determine whether incoming messages have spam content.

When a message is sent out that contains spam, the network will drop it and send out an error code to notify the sender. Because this type of error gets rid of spam, many people are happy with this feature provided by the SMS service provider.

But what about messages that do not spam? There are ways to avoid sending spam but some will find it difficult to get their messages through. You can check for an anti-spam or a whitelisted number to avoid getting this type of code.

What is the SMS Error Code for Invalid Source Number?

The text message error code for an invalid source number is “40.” This usually happens when the mobile phone number that has been inputted into the system does not exist or is not a working number.

Sometimes, the sender gives the wrong phone number while some senders add extra zeros to make their numbers longer such as (09xxxxxxxxxx).

To avoid this from happening, you will need to double-check on your given mobile number and keep it simple. You can also call your service provider to re-verify your mobile number.

What is the SMS Error Code for Invalid Destination Number?

The SMS error code for an invalid destination number is “50.” The network carrier sends out this SMS error code when the destination number entered is not correct, not SMS-enabled or is a landline number.

A sender will receive this notification when the message was sent to a wrong phone number or invalid destination. This could happen because of typing errors, incorrect spelling, incorrect numbers and other issues.

To prevent this from happening, check the phone number saved in the mobile phone to ensure that it is correct. If sending multiple messages, separate each number with commas. Another way to avoid this from happening is to double-check the phone number before you actually send out a message.

What is the Text Message Error Code for Message too Long?

The SMS error code for messages that are too long is “60.” This type of notification usually happens when the message entered exceeds the limit for character length. Mobile carriers have set up limits for length but they can vary depending on the company.

This error usually happens when senders forget to separate their words with spaces or add symbols in the message. Sometimes, many people make this mistake when they are typing lengthy messages. To avoid getting this type of notification, you should aim to keep your message to less than 160 characters. Also, you can check your phone carrier to see if they have any character limits.

What is the SMS Error Code for Message Expired?

The SMS error code for the message expired is “61.” This notification happens when the message entered has already been sent before. Because of this, it cannot be delivered to its destination. When you receive this SMS error code, it means that the message has reached its quota in the receiver’s device and will no longer be delivered.

Due to network carrier restrictions, you will not be able to stop this from happening. To avoid this problem, you can schedule your messages to send them at an exact time so they will not be delivered on the same day. Another way is to check if your message has reached its maximum quota before it expires.

Why Do SMS Errors Happen?

An SMS error happens because of many reasons. SMS users should understand that not all these text message error codes can be easily fixed when they happen. Depending on the error, sometimes you will get an SMS error code that needs to be reported and other times, just sending it again will help.

For common reasons why these errors happen such as invalid destination numbers or invalid source numbers, this is because of unintentional typing mistakes and incorrect spelling of numbers. Another problem would be forgetting to separate words with spaces or adding symbols in the message.

Here are some of the most common reasons for SMS errors:

  • The number format is invalid
  • The handset is switched off
  • The number is deactivated or unallocated
  • The number is in roaming state
  • Message expired
  • Network congestion
  • Spam detected
  • Operator-side error
  • Signal issues between handset and network operator
  • Sender ID is not whitelisted by local carrier
  • Sender ID or a word in the message is blacklisted by local carrier
  • Sending messages is disabled in the receiving country

If you encounter a similar problem, always try to check your number and double-check the message before sending it out. If receiving this notification, be sure to contact the sender or service provider.

How Do You Fix SMS Error?

To fix these SMS errors, you can go to your service provider’s website and check for their limits on text messages. You can also call them up to re-verify your phone number or get a new one if necessary. You should also make sure that your message is compatible with the receiving number.

If this problem happens often, try to reformat your messages and add spaces in between letters before typing them out. Also, avoid using long words or symbols in your message when possible.

For sms error codes that require a report such as “60” or “61,” you can contact your service provider and make sure you provide the correct information they need for troubleshooting.

Some troubleshooting that you do are the following:

Expired SMS – Use a real mobile number during commissioning. When using a commercial platform, record related information and contact the network.

Message Undelivered – Verify that the mobile number that will receive the message is reachable and available.

Unknown Error – Check that the mobile number receiving the message is available and has a network signal.

Failed to Match Gateway – contact the network carrier and make sure that the receiving gateway address is valid

Invalid Destination Number – Check if the number you are using to send your message is in working condition. If not, make sure it has a valid number format when sending out messages.

Network Congestion – There is no easy fix for this problem because it varies per network provider. However, if the destination number is valid, you can contact the network carrier.

Invalid Message – Check if your message has a format that is acceptable to be sent out by the device you are using. Verify the spelling and re-format it before sending them out or try sending them once again.

Message Not Delivered – If after several attempts, your message still will not be sent out, you can contact your service provider to re-verify your number. If the number is correct and you keep getting this notification, it may be due to network problems or a problem with the phone that you are using.

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