21460: Phone Number is being migrated to use a new Regulatory System

Twilio is moving to a new Regulatory System for Phone Number Provisioning. Your account is in the process of migration to the new system and so some functionality may not be updated temporarily. You can continue to you update once the migration completes. Please contact support if you have futher questions.

Account is in migration to Regulatory System and hence some functionality cannot be updated.

This is just temporary.