AS7018 216.103.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.103.248.0/24216.103.249.0/24216.103.250.0/24216.103.251.0/24216.103.252.0/24216.103.253.0/24216.103.254.0/24216.103.255.0/24