AS7018 12.235.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.235.248.0/2412.235.249.0/2412.235.250.0/2412.235.251.0/2412.235.252.0/2412.235.253.0/2412.235.254.0/2412.235.255.0/24