AS19871 216.172.184.0/21 CIDR and IP Range Summary.ASN: 19871 - Network Solutions LLCHost Count: 2046Addressable IPs: 2048216.172.184.0/24216.172.185.0/24216.172.186.0/24216.172.187.0/24216.172.188.0/24216.172.189.0/24216.172.190.0/24216.172.191.0/24