AS22 198.253.72.0/21 CIDR and IP Range Summary.ASN: 22 - Navy Network Information Center (NNIC)Host Count: 2046Addressable IPs: 2048198.253.72.0/24198.253.73.0/24198.253.74.0/24198.253.75.0/24198.253.76.0/24198.253.77.0/24198.253.78.0/24198.253.79.0/24