To find your Xfinity channel lineup, press the Guide button on your remote control. Use the arrow keys to navigate to the ESPN channel. Alternatively, you can visit the Xfinity website and enter your location to access the channel lineup for your area. Another option is to download the Xfinity Stream app on your mobile device and sign in with your Xfinity credentials to view the channel lineup. If you're specifically looking for the channel number for ESPN, it can vary depending on your location and package. To find the exact channel number, visit the Xfinity website or contact Xfinity customer support for assistance.