List of best mirrors for IP address 18.117.157.126, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/x/xcb-util-keysyms/libxcb-keysyms1-dev_0.4.1-1_armhf.deb