AS7018 12.52.16.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.52.16.0/2412.52.17.0/2412.52.18.0/2412.52.19.0/2412.52.20.0/2412.52.21.0/2412.52.22.0/2412.52.23.0/2412.52.24.0/2412.52.25.0/2412.52.26.0/2412.52.27.0/2412.52.28.0/2412.52.29.0/2412.52.30.0/2412.52.31.0/24