AS1281 154.42.200.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.42.200.0/24154.42.201.0/24154.42.202.0/24154.42.203.0/24154.42.204.0/24154.42.205.0/24154.42.206.0/24154.42.207.0/24