AS2386 74.174.40.0/21 CIDR and IP Range Summary.ASN: 2386 - AT&T Data Communications ServicesHost Count: 2046Addressable IPs: 204874.174.40.0/2474.174.41.0/2474.174.42.0/2474.174.43.0/2474.174.44.0/2474.174.45.0/2474.174.46.0/2474.174.47.0/24