138.153.64.0/19 covers 138.153.64.0 to 138.153.95.255, 8,192 IPv4 addresses. It is announced by AS5852 (United States Department of Defense). Every sampled address geolocates to United States, with 100% in Columbus. It is registered to a government network. None of the sampled addresses are flagged as VPN, proxy or Tor.