---
title: 2019: Phone number not found | API Docs
description: No phone number matches the ID you supplied.
---

No phone number matches the ID you supplied. This is an HTTP 404 error, returned when updating a line whose ID doesn’t resolve.

## Troubleshooting

- Verify the phone number ID against `GET /v3/phone_numbers` — it is the `id` of the line, not the number itself
- A line that exists but belongs to another account returns `403` [2005](/error/codes/2xxx/2005/index.md) instead, so a `404` here means the ID is genuinely unknown

## Related

- [Phone Numbers](/guides/phone-numbers/index.md)
- [API reference: Phone Numbers](/api/resources/phone_numbers/index.md)
- [Error Codes](/error/index.md)