AS7018 75.54.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204875.54.40.0/2475.54.41.0/2475.54.42.0/2475.54.43.0/2475.54.44.0/2475.54.45.0/2475.54.46.0/2475.54.47.0/24