List of best mirrors for IP address 18.220.194.29, 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/p/protobuf/libprotobuf17_3.6.1.3-2+rpi1+deb10u1_armhf.deb