The following addresses may break some providers/dns and are excluded from the main HOSTS file:
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# Deutsche Telekom AG [NSA-affiliated IP ranges]
79.192.0.0 - 79.244.191.255
80.128.0.0 - 80.146.159.255
84.128.0.0 - 84.191.255.255
87.128.0.0 - 87.191.255.255
91.0.0.0 - 91.23.255.255
195.145.0.0 - 195.145.255.255
217.6.95.128 - 217.6.95.255
217.224.0.0 - 217.255.255.255 
dns1.telekom.de [217.6.95.193]
dns2.telekom.de [192.166.53.61]
secondary006.dtag.net [195.244.245.25]
secondary007.dtag.net [195.244.245.24]
pns.dtag.de [194.25.0.125]
dns51.t-ipnet.de [217.5.100.186]
dns04.btx.dtag.de [194.25.2.133]
dns01.btx.dtag.de [194.25.2.130]


# Google [NSA-affiliated IP ranges]
Mountain View CA US
64.233.160.0 - 64.233.191.255
66.102.0.0 - 66.102.15.255
66.249.64.0 - 66.249.95.255
72.14.192.0 - 72.14.255.255
209.85.128.0 - 209.85.255.255
216.239.32.0 - 216.239.63.255
ns3.google.com [216.239.36.10]
ns4.google.com [216.239.38.10]
ns1.google.com [216.239.32.10]
ns2.google.com [216.239.34.10]