AS7018 12.197.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.197.248.0/2412.197.249.0/2412.197.250.0/2412.197.251.0/2412.197.252.0/2412.197.253.0/2412.197.254.0/2412.197.255.0/24