AS13998 198.215.48.0/20 CIDR and IP Range Summary.ASN: 13998 - UT Southwestern Medical Center at DallasHost Count: 4094Addressable IPs: 4096198.215.48.0/24198.215.49.0/24198.215.50.0/24198.215.51.0/24198.215.52.0/24198.215.53.0/24198.215.54.0/24198.215.55.0/24198.215.56.0/24198.215.57.0/24198.215.58.0/24198.215.59.0/24198.215.60.0/24198.215.61.0/24198.215.62.0/24198.215.63.0/24