Twilio Rest API uses the standard Http Status Code.
| Status Code | Remark | Description |
|---|---|---|
| 200 | OK | This indicates a successful request. |
| 201 | Created | This indicates a new resource was created. |
| 404 | Not Found | This indicates that the requested resource was not found. |
Error Codes
This section contains a list of possible error messages you might come across when using the Twilio API.
| Error Code | Description |
|---|---|
| 2127 | This indicates that the requested phone number is invalid. |
| 21422 | This indicates that the requested phone number is unavailable |
| 21421 | This indicates that the requested phone number is invalid. |
| 21606 | This indicates that the requested phone number is not owned by your account or is not SMS-capable. |
| 21611 | This indicates that the requested phone number SMS message queue is full. |
| 533 | This indicates that the requested area code doesn't have any available phone numbers. |