AS7539 203.145.200.0/21 CIDR and IP Range Summary.ASN: 7539 - National Center for High-Performance ComputingHost Count: 2046Addressable IPs: 2048203.145.200.0/24203.145.201.0/24203.145.202.0/24203.145.203.0/24203.145.204.0/24203.145.205.0/24203.145.206.0/24203.145.207.0/24