AS19237 216.239.136.0/21 CIDR and IP Range Summary.ASN: 19237 - Omnis Network LLCHost Count: 2046Addressable IPs: 2048216.239.136.0/24216.239.137.0/24216.239.138.0/24216.239.139.0/24216.239.140.0/24216.239.141.0/24216.239.142.0/24216.239.143.0/24