# 21633: Cannot delete emergency validated address while in use

Log Level: ERROR

## Description

This address is currently associated with one or more phone numbers for emergency calling. Please dissociate these numbers before proceeding.

You can use the [Dependent Phone Numbers subresource](/docs/usage/api/address#list-dependent-pns) to find these phone numbers.

Refer to the docs on [Emergency Calling](/docs/sip-trunking/emergency-calling) over SIP trunking for more details.