Detailed information about 198.243.72.0/21 ASN 209 - CENTURYLINK-US-LEGACY-QWEST Number of IPs: 2048 Number of Addressable Hosts: 2046 IP Subnets in 198.243.72.0/21198.243.72.0/24198.243.73.0/24198.243.74.0/24198.243.75.0/24198.243.76.0/24198.243.77.0/24198.243.78.0/24198.243.79.0/24