To port a UK number to CallHippo, we require documents that prove ownership of the numbers you are porting. This includes a duly signed copy of the Letter of Authorization (LOA) and the most recent invoice for the phone service (Issued within 90 days) and the latest address proof like Utility Bill, Tax Invoice, Rent receipt, etc (Issued within 3 months).
Please make sure that the invoice includes the account information for all numbers that you want to port. Then you need to send digital copies of all your documents to our support team.
Hope this was helpful!
For further queries, please contact us at [email protected]