---
page_type: error
code: 52139
message: "52139: APN service shutdown"
level: ERROR
product: Notifications
---

## Error - 52139

### APNs service shutdown

#### Possible Causes

- APNs delivery rejected because APNs service is shutting down (e.g. for maintenance).

#### Possible Solutions

- If the problem persists, please contact [customer support](https://www.twilio.com/help/contact).