AS13916 208.83.138.0/24 CIDR and IP Range Summary.ASN: 13916 - Proofpoint Inc.Host Count: 254Addressable IPs: 256 208.83.138.0208.83.138.1208.83.138.2208.83.138.3208.83.138.4208.83.138.5208.83.138.6208.83.138.7208.83.138.8208.83.138.9208.83.138.10208.83.138.11208.83.138.12208.83.138.13208.83.138.14208.83.138.15208.83.138.16208.83.138.17208.83.138.18208.83.138.19208.83.138.20208.83.138.21208.83.138.22208.83.138.23208.83.138.24208.83.138.25208.83.138.26208.83.138.27208.83.138.28208.83.138.29208.83.138.30208.83.138.31208.83.138.32208.83.138.33208.83.138.34208.83.138.35208.83.138.36208.83.138.37208.83.138.38208.83.138.39208.83.138.40208.83.138.41208.83.138.42208.83.138.43208.83.138.44208.83.138.45208.83.138.46208.83.138.47208.83.138.48208.83.138.49208.83.138.50208.83.138.51208.83.138.52208.83.138.53208.83.138.54208.83.138.55208.83.138.56208.83.138.57208.83.138.58208.83.138.59208.83.138.60208.83.138.61208.83.138.62208.83.138.63208.83.138.64208.83.138.65208.83.138.66208.83.138.67208.83.138.68208.83.138.69208.83.138.70208.83.138.71208.83.138.72208.83.138.73208.83.138.74208.83.138.75208.83.138.76208.83.138.77208.83.138.78208.83.138.79208.83.138.80208.83.138.81208.83.138.82208.83.138.83208.83.138.84208.83.138.85208.83.138.86208.83.138.87208.83.138.88208.83.138.89208.83.138.90208.83.138.91208.83.138.92208.83.138.93208.83.138.94208.83.138.95208.83.138.96208.83.138.97208.83.138.98208.83.138.99208.83.138.100208.83.138.101208.83.138.102208.83.138.103208.83.138.104208.83.138.105208.83.138.106208.83.138.107208.83.138.108208.83.138.109208.83.138.110208.83.138.111208.83.138.112208.83.138.113208.83.138.114208.83.138.115208.83.138.116208.83.138.117208.83.138.118208.83.138.119208.83.138.120208.83.138.121208.83.138.122208.83.138.123208.83.138.124208.83.138.125208.83.138.126208.83.138.127208.83.138.128208.83.138.129208.83.138.130208.83.138.131208.83.138.132208.83.138.133208.83.138.134208.83.138.135208.83.138.136208.83.138.137208.83.138.138208.83.138.139208.83.138.140208.83.138.141208.83.138.142208.83.138.143208.83.138.144208.83.138.145208.83.138.146208.83.138.147208.83.138.148208.83.138.149208.83.138.150208.83.138.151208.83.138.152208.83.138.153208.83.138.154208.83.138.155208.83.138.156208.83.138.157208.83.138.158208.83.138.159208.83.138.160208.83.138.161208.83.138.162208.83.138.163208.83.138.164208.83.138.165208.83.138.166208.83.138.167208.83.138.168208.83.138.169208.83.138.170208.83.138.171208.83.138.172208.83.138.173208.83.138.174208.83.138.175208.83.138.176208.83.138.177208.83.138.178208.83.138.179208.83.138.180208.83.138.181208.83.138.182208.83.138.183208.83.138.184208.83.138.185208.83.138.186208.83.138.187208.83.138.188208.83.138.189208.83.138.190208.83.138.191208.83.138.192208.83.138.193208.83.138.194208.83.138.195208.83.138.196208.83.138.197208.83.138.198208.83.138.199208.83.138.200208.83.138.201208.83.138.202208.83.138.203208.83.138.204208.83.138.205208.83.138.206208.83.138.207208.83.138.208208.83.138.209208.83.138.210208.83.138.211208.83.138.212208.83.138.213208.83.138.214208.83.138.215208.83.138.216208.83.138.217208.83.138.218208.83.138.219208.83.138.220208.83.138.221208.83.138.222208.83.138.223208.83.138.224208.83.138.225208.83.138.226208.83.138.227208.83.138.228208.83.138.229208.83.138.230208.83.138.231208.83.138.232208.83.138.233208.83.138.234208.83.138.235208.83.138.236208.83.138.237208.83.138.238208.83.138.239208.83.138.240208.83.138.241208.83.138.242208.83.138.243208.83.138.244208.83.138.245208.83.138.246208.83.138.247208.83.138.248208.83.138.249208.83.138.250208.83.138.251208.83.138.252208.83.138.253208.83.138.254208.83.138.255