The word Semantic web services have received great concentration from industrialists, researchers and academicians because of automatic publishing, execution, composition and discovering web services. Presently web services systems for publishing, discovering, choreography, orchestration, composition and invocation are based on central registries. With the increasing number of web services and due to its dynamicity centralized approach swiftly becomes unrealistic and incompetent. Moreover, existing web services protocols like UDDI and WSDL cannot support semantic description which is necessary for automation of web services function such as execution, discovery and composition. Therefore, we propose a CAN-based P2P novel system that enable efficient semantic web service discovery and publishing in a entirely decentralized network. We also design and implement CAN-based P2P system for replacing existing centralize UDDI system by novel decentralized system of the UDDI. The decentralized system distribute the function of UDDI among each and every one peers in the Peer-2-Peer network technologies. Simultaneously, we propose an ontology based mechanism which guaranty that each semantic web services in the CAN-based P2P system with ontology service would be registered on a particular peer. By replacing the centralized UDDI system with decentralized UDDI, our CAN-based P2P system improves the stability and scalability of the systems and recognizes well-organized ontology-based semantic web services discovery.