158.245.128.0/18 covers 158.245.128.0 to 158.245.191.255, 16,384 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.