AS1281 154.60.40.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.60.40.0/24154.60.41.0/24154.60.42.0/24154.60.43.0/24154.60.44.0/24154.60.45.0/24154.60.46.0/24154.60.47.0/24