# E12088 — SMSNumberOwnershipUnverified

You own this number, but the country that issued it has not yet accepted the paperwork proving it. Sending from it is not permitted until that is approved.

- **HTTP status**: `422`
- **Type**: `validation_error`
- **Name**: `SMSNumberOwnershipUnverified`

## What to do

Read the ownership requirements for this number, send the answers, and send from it once they are approved.

## Related

- [E12xxx — SMS sending & delivery](/docs/api/errors/E12xxx): every code in this range
- [Errors](/docs/api/errors): the full wire contract, status mapping, and error catalog
- [Error handling](/docs/guides/errors): branching on `type` and `code`, validation details, and `vendor_code`