AS18028 117.16.152.0/21 CIDR and IP Range Summary.ASN: 18028 - Gyeongsang National UniversityHost Count: 2046Addressable IPs: 2048117.16.152.0/24117.16.153.0/24117.16.154.0/24117.16.155.0/24117.16.156.0/24117.16.157.0/24117.16.158.0/24117.16.159.0/24