AS21369 157.203.40.0/21 CIDR and IP Range Summary.ASN: 21369 - Atos IT Services UK LtdHost Count: 2046Addressable IPs: 2048157.203.40.0/24157.203.41.0/24157.203.42.0/24157.203.43.0/24157.203.44.0/24157.203.45.0/24157.203.46.0/24157.203.47.0/24