You can see detailed information about your deliverability in your CSV exports. To view this data, export your campaign's CSV and check the “error codes” column. Below, we’ve provided a breakdown of common error codes.
Error Code | Explanation |
4432 | Messaging to country forbidden. The carrier’s system indicates the account associated with the message is not enabled for messaging this zone, this country or this country is outside of messaging reach (specifically for MMS). |
4700, 4701, 4702, 4720, 4721, 4750, 5620, 5650, 30003, 30005, 40001 | The phone you tried to reach is off, out of service, or is an unreachable destination. |
4720, 30005, 30006, 40001 | The phone you tried to reach is likely a landline. |
4470, 4750 (usually a phone that has been turned off, but occasionally is spam on AT&T), 4770, 30004, 30007, 40002, 40003, 40015 | Your message was filtered as spam. Messages can be blocked for a variety of reasons, including but not limited to volumetric filtering, content blocking, and SHAFT violations (including specific keywords), or because the originating address has been flagged for repeated spam content. |
4730, 4740 | No route to destination carrier or no roaming route exists. |
4751 | Carrier has rejected message length as invalid or too long. |
4780 | You have exceeded your allowed throughput on 10DLC to T-Mobile subscribers. Feel free to reach out to us for additional guidance. |
4781
| You have exceeded your allowed throughput on 10DLC to AT&T subscribers. Feel free to reach out to us for additional guidance. |
4785 | You have exceeded your allowed throughput. Please retry after a cool-off period. Feel free to reach out to us for additional guidance. |
4795 | The message was blocked due to the toll free number not being verified. Please register for toll-free as soon as possible. |
5201
| Transient downstream error from one of the messaging aggregators. |
9999 | Unknown error from downstream. Carrier reported a failure code that the downstream vendor cannot map. |
21408 | Message not delivered because it was sent to a device that is not configured to receive SMS. Usually seen when attempting to text a number that is located in a US territory or outside the US. |
You are attempting to send a message to a number that has previously opted out of receiving messages from your organization using a STOP keyword. | |
30001 | You have sent more messages on this phone number than can be queued. |
30008 | Message deliverable unknown. The destination carrier returned a generic error message. Usually happens on MMS campaigns. |
Have an error code that you don’t see listed? Reach out to us here and we’ll be happy to help you identify it.