AS6389 74.231.168.0/21 CIDR and IP Range Summary.ASN: 6389 - Bellsouth.net Inc.Host Count: 2046Addressable IPs: 204874.231.168.0/2474.231.169.0/2474.231.170.0/2474.231.171.0/2474.231.172.0/2474.231.173.0/2474.231.174.0/2474.231.175.0/24