AS1281 154.41.216.0/21 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 2046Addressable IPs: 2048154.41.216.0/24154.41.217.0/24154.41.218.0/24154.41.219.0/24154.41.220.0/24154.41.221.0/24154.41.222.0/24154.41.223.0/24