AS7018 107.121.200.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048107.121.200.0/24107.121.201.0/24107.121.202.0/24107.121.203.0/24107.121.204.0/24107.121.205.0/24107.121.206.0/24107.121.207.0/24