AS9903 203.158.248.0/21 CIDR and IP Range Summary.ASN: 9903 - Rajamangala Institute of TechnologyHost Count: 2046Addressable IPs: 2048203.158.248.0/24203.158.249.0/24203.158.250.0/24203.158.251.0/24203.158.252.0/24203.158.253.0/24203.158.254.0/24203.158.255.0/24