When a message to one of your subscribers bounces, that means we were unable to deliver the message because it was rejected by the subscriber's wireless carrier. The reasons for a message to bounce greatly vary, but a few examples would be that the subscriber's wireless carrier turned their service off, the subscriber placed a block on short code messaging, etc.

  • 0, 3 and 4 are response codes for succesful SMS messages that were received by a phone number, they did not bounce. For MMS, succesful response codes are N102, N101 and N202.

Some bounces are more serious than others though, and Tatango will determine based on the type of bounce if it's worth it to continue to send messages to that specific subscriber in the future. If we determine that it's not worth it to continue to send messages to a subscriber, we'll automatically unsubscribe them, which means that Tatango will no longer attempt to send that subscriber messages from your list.

Below is a list of response codes that will trigger a message to a subscriber's mobile phone to bounce. The response code and the descriptions below are directly from the wireless carrier. Some descriptions as you can tell are more detailed than others. To view the response codes received from a specific message, you need to download a sent message report.

If Tatango receives one of the following response codes after sending a message to a phone number, it means they didn't receive your message, but we'll continue to attempt to send your future messages to them.

  • 341 - Transaction failed; Carrier ID does not exist (SMS Only)
  • 351 - Transaction failed: Invalid destination address value. This response code unfortunately can be the result of one of any five (5) issues, which are detailed below. (SMS Only)
  1. For all wireless carriers, it's possible the phone number doesn't belong to the wireless carrier that Tatango thinks it does.
  2. For all wireless carriers, it's possible the phone number is deactivated on that wireless carrier. 
  3. For AT&T, T-Mobile, and MetroPCS, it's possible the phone number belongs to a prepaid user who does not have sufficient credits to receive an SMS message at the time they received the message.
  4. For T-Mobile, it's possible the phone number is not provisioned to receive SMS from all short codes or specific short codes. 
  5. For T-Mobile, it's possible the phone number may be owned be a "reseller", and T-Mobile does not deliver short code SMS messages to any of it's resellers' numbers.
  • 368 - Invalid source address value (SMS Only)
  • 581 - Prepaid subscriber out of messaging credits (SMS Only)
  • 588 - Invalid T-Mobile US subscriber. Possible causes: out of credits, suspended, content blocked, or not a T-Mobile subscriber (SMS Only)
  • 810 - Failed message delivery (SMS Only)
  • 811 - Message Delivery Error: Message expired by carrier (SMS Only)
  • 815 - Message Delivery Error - Message submitted to but not acknowledged by carrier (SMS Only)
  • 1020 - Temporary external system error (SMS Only)
  • 1030 - External system error (SMS Only)
  • E102 - Message Sent/Failed, Message Sent/Expired or Message Sent/NotSupported (MMS Only)
  • E202 - Message Sent/Failed, Message Sent/Expired or Message Sent/NotSupported (MMS Only)
  • E502 - Message Sent/Failed, Message Sent/Expired or Message Sent/NotSupported (MMS Only)

If Tatango receives one of the following response codes after sending a message to a phone number, it means they didn't receive your message, and won't receive future messages sent to that number (some like to refer to these bounces as "Hard Bounces"). In these cases, Tatango will automatically unsubscribe these phone numbers from your list. All of the following response codes are only for SMS messages, as currently there are no response codes for MMS messages that result in an immediate unsubscribing of the phone number.

  • 560 - Message recipient not authorized by carrier to receive the message (SMS Only)
  • 561 - Content blocked by carrier. This error usually occurs for Verizon MTs in cases where the content rating assigned by Verizon to the short code is not compatible with the content filtering rating on the mobile subscriber's account. (SMS Only)
  • 566 - Destination address blocked by carrier (SMS Only)
  • 568 - Destination address not provisioned for SMS. Verizon numbers only. ¬†Consumer's rate plan does not include SMS. (SMS Only)
  • 569 - Destination address suspended by carrier (SMS Only)
  • 573 - Short code blocked by subscriber (SMS Only)
  • 3041 - US standard rate message blocked by the deactivated numbers firewall (SMS Only)
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