AS7018 68.77.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.77.216.0/2468.77.217.0/2468.77.218.0/2468.77.219.0/2468.77.220.0/2468.77.221.0/2468.77.222.0/2468.77.223.0/24