72.163.80.0/20 covers 72.163.80.0 to 72.163.95.255, 4,096 IPv4 addresses. It is announced by AS109 (Cisco Systems, Inc.). Every sampled address geolocates to United States, with 100% in San Jose. It is registered to a business. None of the sampled addresses are flagged as VPN, proxy or Tor.