Is Kyber network a Blockchain?

Could you please clarify for me, is Kyber Network indeed a blockchain platform? I've heard it being discussed in the context of decentralized finance and token swaps, but I'm not entirely sure if it operates on its own blockchain or if it utilizes another existing blockchain infrastructure. Understanding this distinction is crucial for me to grasp the full scope of Kyber Network's capabilities and how it fits into the broader crypto ecosystem. Thank you for your insight.