# E22000 — LookupInvalidPhoneNumber

The number to look up is not a valid phone number.

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

## What to do

Send the number in E.164 format, meaning a leading `+`, the country calling code, then the national number, with no spaces or punctuation.

## Related

- [E22xxx — Number lookup](/docs/api/errors/E22xxx): 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`