AS4997 64.124.72.0/21 CIDR and IP Range Summary.ASN: 4997 - Zayo BandwidthHost Count: 2046Addressable IPs: 204864.124.72.0/2464.124.73.0/2464.124.74.0/2464.124.75.0/2464.124.76.0/2464.124.77.0/2464.124.78.0/2464.124.79.0/24