AS7018 12.37.16.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.37.16.0/2412.37.17.0/2412.37.18.0/2412.37.19.0/2412.37.20.0/2412.37.21.0/2412.37.22.0/2412.37.23.0/2412.37.24.0/2412.37.25.0/2412.37.26.0/2412.37.27.0/2412.37.28.0/2412.37.29.0/2412.37.30.0/2412.37.31.0/24