AS1281 154.44.56.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.44.56.0/24154.44.57.0/24154.44.58.0/24154.44.59.0/24154.44.60.0/24154.44.61.0/24154.44.62.0/24154.44.63.0/24