138.157.64.0/23 covers 138.157.64.0 to 138.157.65.255, 512 IPv4 addresses. It is announced by AS637 (United States Department of Defense). Every sampled address geolocates to United States, with 100% in Quantico. It is registered to a government network. None of the sampled addresses are flagged as VPN, proxy or Tor.