AS763 198.74.64.0/21 CIDR and IP Range Summary.ASN: 763 - IBMHost Count: 2046Addressable IPs: 2048198.74.64.0/24198.74.65.0/24198.74.66.0/24198.74.67.0/24198.74.68.0/24198.74.69.0/24198.74.70.0/24198.74.71.0/24