AS7018 107.121.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048107.121.248.0/24107.121.249.0/24107.121.250.0/24107.121.251.0/24107.121.252.0/24107.121.253.0/24107.121.254.0/24107.121.255.0/24