AS1281 154.44.160.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.44.160.0/24154.44.161.0/24154.44.162.0/24154.44.163.0/24154.44.164.0/24154.44.165.0/24154.44.166.0/24154.44.167.0/24