AS13445 173.243.0.0/20 CIDR and IP Range Summary.ASN: 13445 - Cisco WebEx LLCHost Count: 4094Addressable IPs: 4096173.243.0.0/24173.243.1.0/24173.243.2.0/24173.243.3.0/24173.243.4.0/24173.243.5.0/24173.243.6.0/24173.243.7.0/24173.243.8.0/24173.243.9.0/24173.243.10.0/24173.243.11.0/24173.243.12.0/24173.243.13.0/24173.243.14.0/24173.243.15.0/24