AS1281 154.53.64.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.53.64.0/24154.53.65.0/24154.53.66.0/24154.53.67.0/24154.53.68.0/24154.53.69.0/24154.53.70.0/24154.53.71.0/24