AS7018 12.151.16.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.151.16.0/2412.151.17.0/2412.151.18.0/2412.151.19.0/2412.151.20.0/2412.151.21.0/2412.151.22.0/2412.151.23.0/2412.151.24.0/2412.151.25.0/2412.151.26.0/2412.151.27.0/2412.151.28.0/2412.151.29.0/2412.151.30.0/2412.151.31.0/24