AS7018 12.20.0.0/19 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 8190Addressable IPs: 819212.20.0.0/2412.20.1.0/2412.20.2.0/2412.20.3.0/2412.20.4.0/2412.20.5.0/2412.20.6.0/2412.20.7.0/2412.20.8.0/2412.20.9.0/2412.20.10.0/2412.20.11.0/2412.20.12.0/2412.20.13.0/2412.20.14.0/2412.20.15.0/2412.20.16.0/2412.20.17.0/2412.20.18.0/2412.20.19.0/2412.20.20.0/2412.20.21.0/2412.20.22.0/2412.20.23.0/2412.20.24.0/2412.20.25.0/2412.20.26.0/2412.20.27.0/2412.20.28.0/2412.20.29.0/2412.20.30.0/2412.20.31.0/24