AS5400 208.161.224.0/19 CIDR and IP Range Summary.ASN: 5400 - British Telecommunications PLCHost Count: 8190Addressable IPs: 8192208.161.224.0/24208.161.225.0/24208.161.226.0/24208.161.227.0/24208.161.228.0/24208.161.229.0/24208.161.230.0/24208.161.231.0/24208.161.232.0/24208.161.233.0/24208.161.234.0/24208.161.235.0/24208.161.236.0/24208.161.237.0/24208.161.238.0/24208.161.239.0/24208.161.240.0/24208.161.241.0/24208.161.242.0/24208.161.243.0/24208.161.244.0/24208.161.245.0/24208.161.246.0/24208.161.247.0/24208.161.248.0/24208.161.249.0/24208.161.250.0/24208.161.251.0/24208.161.252.0/24208.161.253.0/24208.161.254.0/24208.161.255.0/24