AS7018 74.171.0.0/18 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 16382Addressable IPs: 1638474.171.0.0/2474.171.1.0/2474.171.2.0/2474.171.3.0/2474.171.4.0/2474.171.5.0/2474.171.6.0/2474.171.7.0/2474.171.8.0/2474.171.9.0/2474.171.10.0/2474.171.11.0/2474.171.12.0/2474.171.13.0/2474.171.14.0/2474.171.15.0/2474.171.16.0/2474.171.17.0/2474.171.18.0/2474.171.19.0/2474.171.20.0/2474.171.21.0/2474.171.22.0/2474.171.23.0/2474.171.24.0/2474.171.25.0/2474.171.26.0/2474.171.27.0/2474.171.28.0/2474.171.29.0/2474.171.30.0/2474.171.31.0/2474.171.32.0/2474.171.33.0/2474.171.34.0/2474.171.35.0/2474.171.36.0/2474.171.37.0/2474.171.38.0/2474.171.39.0/2474.171.40.0/2474.171.41.0/2474.171.42.0/2474.171.43.0/2474.171.44.0/2474.171.45.0/2474.171.46.0/2474.171.47.0/2474.171.48.0/2474.171.49.0/2474.171.50.0/2474.171.51.0/2474.171.52.0/2474.171.53.0/2474.171.54.0/2474.171.55.0/2474.171.56.0/2474.171.57.0/2474.171.58.0/2474.171.59.0/2474.171.60.0/2474.171.61.0/2474.171.62.0/2474.171.63.0/24