AS7018 12.13.16.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.13.16.0/2412.13.17.0/2412.13.18.0/2412.13.19.0/2412.13.20.0/2412.13.21.0/2412.13.22.0/2412.13.23.0/2412.13.24.0/2412.13.25.0/2412.13.26.0/2412.13.27.0/2412.13.28.0/2412.13.29.0/2412.13.30.0/2412.13.31.0/24