AS6389 216.78.16.0/21 CIDR and IP Range Summary.ASN: 6389 - Bellsouth.net Inc.Host Count: 2046Addressable IPs: 2048216.78.16.0/24216.78.17.0/24216.78.18.0/24216.78.19.0/24216.78.20.0/24216.78.21.0/24216.78.22.0/24216.78.23.0/24