AS1281 154.53.144.0/20 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 4094Addressable IPs: 4096154.53.144.0/24154.53.145.0/24154.53.146.0/24154.53.147.0/24154.53.148.0/24154.53.149.0/24154.53.150.0/24154.53.151.0/24154.53.152.0/24154.53.153.0/24154.53.154.0/24154.53.155.0/24154.53.156.0/24154.53.157.0/24154.53.158.0/24154.53.159.0/24