---
title: SMS Delivery Status
slug: business-phone-system/sms-delivery-status
docTags:
createdAt: 2025-10-10T16:40:00.174Z
---
:::hint{type="info"}
Note: The SMS Analytics dashboard is currently in its beta phase and has limited access.
:::
- **Deliverable** = **Delivered** + **Failed**. These messages were either **Delivered** to the customer, or **Failed **for some other reason
- **Undeliverable** messages could not be delivered due to DLT, DND or other errors, which should be addressed before trying them again
- **Pending** messages are still in an intermediate state, and will convert to a final state over time
| **Category** | **Explanation** | **DetailedStatusCode: DetailedStatus** |
| ------------- | ------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Delivered | Status = sent | 20005: DELIVERED\_TO\_HANDSET
20006: DELIVERED\_TO\_OPERATOR |
| Failed | Status = failed | **Subscriber related**
- 24105: FAILED\_HANDSET\_ERROR
- 24120: FAILED\_SUBSCRIBER\_ERROR
- 23015: FAILED\_SPAM\_DETECTED
- 23035: FAILED\_SUBSCRIBER\_UNAVAILABLE
**Expired**
- 23050: FAILED\_EXPIRED
**Other**
- 24110: FAILED\_OPERATOR\_ERROR
- 23030: FAILED\_UNAVAILABLE\_ROUTE
- 23060: FAILED\_REJECTED
- 24010: FAILED\_SYSTEM\_ERROR
- 24990: FAILED\_UNKNOWN\_ERROR |
| Undeliverable | Status = failed or failed\_dnd
(DLT, DND or other errors, should be addressed before trying them again) | **DLT**
- 23080: SENDER\_BLOCKED\_BY\_DLT
- 23081: ENTITY\_BLOCKED\_BY\_DLT
- 23281: DLT\_ENTITY\_NOT\_FOUND
- 23082: TEMPLATE\_BLOCKED\_BY\_DLT
- 23181: DLT\_TEMPLATE\_ID\_INVALID
- 23182: DLT\_TEMPLATE\_NOT\_FOUND
- 23183: DLT\_TEMPLATE\_ID\_INACTIVE
- 23184: DLT\_TEMPLATE\_ID\_BLACKLISTED
- 23185: DLT\_TEMPLATE\_DOES\_NOT\_MATCH
- 23186: DLT\_LENGTH\_EXCEEDED
- 23083: FAILED\_DLT\_SCRUBBING\_ERROR
- 23084: FAILED\_DLT\_CONSENT\_ERROR
**Other (may be related to DLT in India)**
- 23070: FAILED\_INVALID\_MESSAGE
- 23072: FAILED\_INVALID\_SENDER\_ID
**DND**
- 23005: FAILED\_REJECTED\_DND
- 23020: FAILED\_REJECTED\_BLACKLIST
**Subscriber related (Customer can remove these numbers)**
- 23010: FAILED\_INVALID\_DESTINATION\_NUMBER
- 23040: FAILED\_SUBSCRIBER\_UNKNOWN |
| Pending | Status = queued, sending or submitted
(still in an intermediate state) | 21010: PENDING\_TO\_OPERATOR
21015: SENDING\_TO\_OPERATOR
21020: PENDING\_ON\_OPERATOR |
Please refer to the** Mapping and Description of status codes** section of the SMS API documentation for more detail on what the errors mean.