Contracted Parties House
CPH is abbreviation for Contracted Parties House. It consists of the Registrars as well as the Registries and plays a huge role in creating the dominance of the Internet Corporation for Assigned Names and Numbers (ICANN) in the world of Domain Name systems. 
CPH and ICANN
The CPH rejected the reporting and review process of the Internet Corporation for Assigned Names and Numbers (ICANN). It was mostly because CPH felt that the regulation policies of ICANN would affect their direct bargain and they will have a limited say in their regulation, which will also affect the Commercial as well as Non-Commercial users of the DNS in particular and the ICANN community in general.