AS1281 154.19.48.0/20 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 4094Addressable IPs: 4096154.19.48.0/24154.19.49.0/24154.19.50.0/24154.19.51.0/24154.19.52.0/24154.19.53.0/24154.19.54.0/24154.19.55.0/24154.19.56.0/24154.19.57.0/24154.19.58.0/24154.19.59.0/24154.19.60.0/24154.19.61.0/24154.19.62.0/24154.19.63.0/24