AS7018 12.42.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.42.216.0/2412.42.217.0/2412.42.218.0/2412.42.219.0/2412.42.220.0/2412.42.221.0/2412.42.222.0/2412.42.223.0/24