AS21875 66.252.232.0/21 CIDR and IP Range Summary.ASN: 21875 - Sands River WirelessHost Count: 2046Addressable IPs: 204866.252.232.0/2466.252.233.0/2466.252.234.0/2466.252.235.0/2466.252.236.0/2466.252.237.0/2466.252.238.0/2466.252.239.0/24