AS6461 72.20.216.0/21 CIDR and IP Range Summary.ASN: 6461 - Zayo BandwidthHost Count: 2046Addressable IPs: 204872.20.216.0/2472.20.217.0/2472.20.218.0/2472.20.219.0/2472.20.220.0/2472.20.221.0/2472.20.222.0/2472.20.223.0/24