AS5400 212.21.192.0/19 CIDR and IP Range Summary.ASN: 5400 - British Telecommunications PLCHost Count: 8190Addressable IPs: 8192212.21.192.0/24212.21.193.0/24212.21.194.0/24212.21.195.0/24212.21.196.0/24212.21.197.0/24212.21.198.0/24212.21.199.0/24212.21.200.0/24212.21.201.0/24212.21.202.0/24212.21.203.0/24212.21.204.0/24212.21.205.0/24212.21.206.0/24212.21.207.0/24212.21.208.0/24212.21.209.0/24212.21.210.0/24212.21.211.0/24212.21.212.0/24212.21.213.0/24212.21.214.0/24212.21.215.0/24212.21.216.0/24212.21.217.0/24212.21.218.0/24212.21.219.0/24212.21.220.0/24212.21.221.0/24212.21.222.0/24212.21.223.0/24