AS7018 12.5.16.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.5.16.0/2412.5.17.0/2412.5.18.0/2412.5.19.0/2412.5.20.0/2412.5.21.0/2412.5.22.0/2412.5.23.0/2412.5.24.0/2412.5.25.0/2412.5.26.0/2412.5.27.0/2412.5.28.0/2412.5.29.0/2412.5.30.0/2412.5.31.0/24