AS6389 74.231.112.0/21 CIDR and IP Range Summary.ASN: 6389 - AT&T Enterprises LLCHost Count: 2046Addressable IPs: 204874.231.112.0/2474.231.113.0/2474.231.114.0/2474.231.115.0/2474.231.116.0/2474.231.117.0/2474.231.118.0/2474.231.119.0/24