3.163.0.0/16 covers 3.163.0.0 to 3.163.255.255, 65,536 IPv4 addresses. It is announced by AS16509 (Amazon.com, Inc.). 63% of sampled addresses geolocate to United States, the rest to 6 other countries, with 31% in Seattle. It is registered to a hosting or cloud provider. None of the sampled addresses are flagged as VPN, proxy or Tor.