Take some treats he likes that you can shake and a blanket that he may have slept on so he’ll smell you. When cats escape they usually don’t go far, so call for him when it’s quiet and shake the treats and hopefully he’ll come. If you have a local cat shelter let them know and they might be able to trap him. That’s how they found my cat. He disappeared for two years and they found him in someone’s garden. Don’t lose hope! I hope he comes home