AS1281 154.45.16.0/20 CIDR and IP Range Summary.ASN: 1281 - PSINet Inc.Host Count: 4094Addressable IPs: 4096154.45.16.0/24154.45.17.0/24154.45.18.0/24154.45.19.0/24154.45.20.0/24154.45.21.0/24154.45.22.0/24154.45.23.0/24154.45.24.0/24154.45.25.0/24154.45.26.0/24154.45.27.0/24154.45.28.0/24154.45.29.0/24154.45.30.0/24154.45.31.0/24