AS7018 12.178.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.178.192.0/2412.178.193.0/2412.178.194.0/2412.178.195.0/2412.178.196.0/2412.178.197.0/2412.178.198.0/2412.178.199.0/24