Cisco-Systems-Ironport-Division Cisco Systems Ironport Division AS16417
23.90.96.0 - 23.90.99.255
23.90.100.0 - 23.90.101.255
23.90.103.0 - 23.90.103.255
23.90.112.0 - 23.90.113.255
23.90.121.0 - 23.90.121.255
23.90.124.0 - 23.90.127.255
63.251.108.0 - 63.251.108.255
68.232.128.0 - 68.232.131.255
68.232.134.0 - 68.232.135.255
68.232.136.0 - 68.232.137.255
68.232.140.0 - 68.232.143.255
68.232.144.0 - 68.232.147.255
68.232.148.0 - 68.232.149.255
68.232.153.0 - 68.232.153.255
68.232.154.0 - 68.232.155.255
68.232.157.0 - 68.232.157.255
68.232.158.0 - 68.232.158.255
72.5.10.0 - 72.5.11.255
74.201.90.0 - 74.201.91.255
74.201.116.0 - 74.201.116.255
139.138.24.0 - 139.138.27.255
139.138.32.0 - 139.138.35.255
139.138.38.0 - 139.138.39.255
139.138.40.0 - 139.138.41.255
139.138.46.0 - 139.138.47.255
139.138.56.0 - 139.138.59.255
184.94.240.0 - 184.94.247.255
184.94.248.0 - 184.94.251.255
184.94.252.0 - 184.94.253.255
184.94.254.0 - 184.94.254.255
194.165.195.0 - 194.165.195.255
194.165.196.0 - 194.165.196.255
194.165.211.0 - 194.165.211.255
194.165.212.0 - 194.165.212.255
204.15.80.0 - 204.15.83.255
207.54.73.0 - 207.54.73.255
207.54.74.0 - 207.54.74.255
207.54.79.0 - 207.54.79.255
207.54.80.0 - 207.54.81.255
207.54.82.0 - 207.54.82.255
207.54.84.0 - 207.54.87.255
207.54.92.0 - 207.54.95.255
208.90.56.0 - 208.90.63.255
216.71.128.0 - 216.71.135.255
216.71.137.0 - 216.71.137.255
216.71.138.0 - 216.71.138.255
216.71.140.0 - 216.71.143.255
216.71.144.0 - 216.71.151.255
216.71.152.0 - 216.71.155.255