AS31572 109.71.216.0/21 CIDR and IP Range Summary.ASN: 31572 - Photonium NetSolutions GmbHHost Count: 2046Addressable IPs: 2048109.71.216.0/24109.71.217.0/24109.71.218.0/24109.71.219.0/24109.71.220.0/24109.71.221.0/24109.71.222.0/24109.71.223.0/24