AS21573 198.153.8.0/21 CIDR and IP Range Summary.ASN: 21573 - HealthPartnersHost Count: 2046Addressable IPs: 2048198.153.8.0/24198.153.9.0/24198.153.10.0/24198.153.11.0/24198.153.12.0/24198.153.13.0/24198.153.14.0/24198.153.15.0/24