List of best mirrors for IP address 3.138.135.201, 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/k/kf6-kconfigwidgets/libkf6configwidgets-dev_6.6.0-1+rpi1+b1_armhf.deb