AS1281 154.27.192.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.27.192.0/24154.27.193.0/24154.27.194.0/24154.27.195.0/24154.27.196.0/24154.27.197.0/24154.27.198.0/24154.27.199.0/24