AS600 206.21.0.0/21 CIDR and IP Range Summary.ASN: 600 - OarnetHost Count: 2046Addressable IPs: 2048206.21.0.0/24206.21.1.0/24206.21.2.0/24206.21.3.0/24206.21.4.0/24206.21.5.0/24206.21.6.0/24206.21.7.0/24