AS1281 154.18.48.0/20 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 4094Addressable IPs: 4096154.18.48.0/24154.18.49.0/24154.18.50.0/24154.18.51.0/24154.18.52.0/24154.18.53.0/24154.18.54.0/24154.18.55.0/24154.18.56.0/24154.18.57.0/24154.18.58.0/24154.18.59.0/24154.18.60.0/24154.18.61.0/24154.18.62.0/24154.18.63.0/24