AS1281 154.50.16.0/20 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 4094Addressable IPs: 4096154.50.16.0/24154.50.17.0/24154.50.18.0/24154.50.19.0/24154.50.20.0/24154.50.21.0/24154.50.22.0/24154.50.23.0/24154.50.24.0/24154.50.25.0/24154.50.26.0/24154.50.27.0/24154.50.28.0/24154.50.29.0/24154.50.30.0/24154.50.31.0/24