AS7018 68.21.64.0/19 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 8190Addressable IPs: 819268.21.64.0/2468.21.65.0/2468.21.66.0/2468.21.67.0/2468.21.68.0/2468.21.69.0/2468.21.70.0/2468.21.71.0/2468.21.72.0/2468.21.73.0/2468.21.74.0/2468.21.75.0/2468.21.76.0/2468.21.77.0/2468.21.78.0/2468.21.79.0/2468.21.80.0/2468.21.81.0/2468.21.82.0/2468.21.83.0/2468.21.84.0/2468.21.85.0/2468.21.86.0/2468.21.87.0/2468.21.88.0/2468.21.89.0/2468.21.90.0/2468.21.91.0/2468.21.92.0/2468.21.93.0/2468.21.94.0/2468.21.95.0/24