AS7018 12.151.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.151.40.0/2412.151.41.0/2412.151.42.0/2412.151.43.0/2412.151.44.0/2412.151.45.0/2412.151.46.0/2412.151.47.0/24