AS7018 12.42.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.42.192.0/2412.42.193.0/2412.42.194.0/2412.42.195.0/2412.42.196.0/2412.42.197.0/2412.42.198.0/2412.42.199.0/24