AS1281 154.51.80.0/20 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 4094Addressable IPs: 4096154.51.80.0/24154.51.81.0/24154.51.82.0/24154.51.83.0/24154.51.84.0/24154.51.85.0/24154.51.86.0/24154.51.87.0/24154.51.88.0/24154.51.89.0/24154.51.90.0/24154.51.91.0/24154.51.92.0/24154.51.93.0/24154.51.94.0/24154.51.95.0/24