AS12257 128.221.208.0/20 CIDR and IP Range Summary.ASN: 12257 - Dell Inc.Host Count: 4094Addressable IPs: 4096128.221.208.0/24128.221.209.0/24128.221.210.0/24128.221.211.0/24128.221.212.0/24128.221.213.0/24128.221.214.0/24128.221.215.0/24128.221.216.0/24128.221.217.0/24128.221.218.0/24128.221.219.0/24128.221.220.0/24128.221.221.0/24128.221.222.0/24128.221.223.0/24