217.204.192.0/18 covers 217.204.192.0 to 217.204.255.255, 16,384 IPv4 addresses. It is announced by AS3257 (GTT Communications, Inc.). Every sampled address geolocates to Germany, with 100% in Frankfurt. It is registered to an internet service provider. None of the sampled addresses are flagged as VPN, proxy or Tor.