AS40281 38.18.136.0/21 CIDR and IP Range Summary.ASN: 40281 - QWK.net Hosting L.L.C.Host Count: 2046Addressable IPs: 204838.18.136.0/2438.18.137.0/2438.18.138.0/2438.18.139.0/2438.18.140.0/2438.18.141.0/2438.18.142.0/2438.18.143.0/24