AS600 199.18.144.0/20 CIDR and IP Range Summary.ASN: 600 - OarnetHost Count: 4094Addressable IPs: 4096199.18.144.0/24199.18.145.0/24199.18.146.0/24199.18.147.0/24199.18.148.0/24199.18.149.0/24199.18.150.0/24199.18.151.0/24199.18.152.0/24199.18.153.0/24199.18.154.0/24199.18.155.0/24199.18.156.0/24199.18.157.0/24199.18.158.0/24199.18.159.0/24