AS15293 206.253.224.0/21 CIDR and IP Range Summary.ASN: 15293 - IBMHost Count: 2046Addressable IPs: 2048206.253.224.0/24206.253.225.0/24206.253.226.0/24206.253.227.0/24206.253.228.0/24206.253.229.0/24206.253.230.0/24206.253.231.0/24