AS23620 203.209.144.0/20 CIDR and IP Range Summary.ASN: 23620 - DMM DMM.com LLCHost Count: 4094Addressable IPs: 4096203.209.144.0/24203.209.145.0/24203.209.146.0/24203.209.147.0/24203.209.148.0/24203.209.149.0/24203.209.150.0/24203.209.151.0/24203.209.152.0/24203.209.153.0/24203.209.154.0/24203.209.155.0/24203.209.156.0/24203.209.157.0/24203.209.158.0/24203.209.159.0/24