AS7018 12.236.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.236.192.0/2412.236.193.0/2412.236.194.0/2412.236.195.0/2412.236.196.0/2412.236.197.0/2412.236.198.0/2412.236.199.0/24