List of best mirrors for IP address 18.118.186.141, located at 42.364899,-71.098701 in United States (US).
Map showing the closest mirrors
I am very sorry, but no mirror was found. Feel free to download directly:
http://raspbian.raspberrypi.org/raspbian/pool/main/x/xfdesktop4/xfdesktop4_4.20.1-1.dsc