List of best mirrors for IP address 3.19.120.87, 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/libn/libnetfilter-cthelper/libnetfilter-cthelper0_1.0.1-4_armhf.deb