AS7018 12.138.0.0/18 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 16382Addressable IPs: 1638412.138.0.0/2412.138.1.0/2412.138.2.0/2412.138.3.0/2412.138.4.0/2412.138.5.0/2412.138.6.0/2412.138.7.0/2412.138.8.0/2412.138.9.0/2412.138.10.0/2412.138.11.0/2412.138.12.0/2412.138.13.0/2412.138.14.0/2412.138.15.0/2412.138.16.0/2412.138.17.0/2412.138.18.0/2412.138.19.0/2412.138.20.0/2412.138.21.0/2412.138.22.0/2412.138.23.0/2412.138.24.0/2412.138.25.0/2412.138.26.0/2412.138.27.0/2412.138.28.0/2412.138.29.0/2412.138.30.0/2412.138.31.0/2412.138.32.0/2412.138.33.0/2412.138.34.0/2412.138.35.0/2412.138.36.0/2412.138.37.0/2412.138.38.0/2412.138.39.0/2412.138.40.0/2412.138.41.0/2412.138.42.0/2412.138.43.0/2412.138.44.0/2412.138.45.0/2412.138.46.0/2412.138.47.0/2412.138.48.0/2412.138.49.0/2412.138.50.0/2412.138.51.0/2412.138.52.0/2412.138.53.0/2412.138.54.0/2412.138.55.0/2412.138.56.0/2412.138.57.0/2412.138.58.0/2412.138.59.0/2412.138.60.0/2412.138.61.0/2412.138.62.0/2412.138.63.0/24