AS7018 74.173.0.0/18 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 16382Addressable IPs: 1638474.173.0.0/2474.173.1.0/2474.173.2.0/2474.173.3.0/2474.173.4.0/2474.173.5.0/2474.173.6.0/2474.173.7.0/2474.173.8.0/2474.173.9.0/2474.173.10.0/2474.173.11.0/2474.173.12.0/2474.173.13.0/2474.173.14.0/2474.173.15.0/2474.173.16.0/2474.173.17.0/2474.173.18.0/2474.173.19.0/2474.173.20.0/2474.173.21.0/2474.173.22.0/2474.173.23.0/2474.173.24.0/2474.173.25.0/2474.173.26.0/2474.173.27.0/2474.173.28.0/2474.173.29.0/2474.173.30.0/2474.173.31.0/2474.173.32.0/2474.173.33.0/2474.173.34.0/2474.173.35.0/2474.173.36.0/2474.173.37.0/2474.173.38.0/2474.173.39.0/2474.173.40.0/2474.173.41.0/2474.173.42.0/2474.173.43.0/2474.173.44.0/2474.173.45.0/2474.173.46.0/2474.173.47.0/2474.173.48.0/2474.173.49.0/2474.173.50.0/2474.173.51.0/2474.173.52.0/2474.173.53.0/2474.173.54.0/2474.173.55.0/2474.173.56.0/2474.173.57.0/2474.173.58.0/2474.173.59.0/2474.173.60.0/2474.173.61.0/2474.173.62.0/2474.173.63.0/24