AS721 192.156.16.0/20 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 4094Addressable IPs: 4096192.156.16.0/24192.156.17.0/24192.156.18.0/24192.156.19.0/24192.156.20.0/24192.156.21.0/24192.156.22.0/24192.156.23.0/24192.156.24.0/24192.156.25.0/24192.156.26.0/24192.156.27.0/24192.156.28.0/24192.156.29.0/24192.156.30.0/24192.156.31.0/24