AS3303 193.246.56.0/21 CIDR and IP Range Summary.ASN: 3303 - Swisscom (Schweiz) AGHost Count: 2046Addressable IPs: 2048193.246.56.0/24193.246.57.0/24193.246.58.0/24193.246.59.0/24193.246.60.0/24193.246.61.0/24193.246.62.0/24193.246.63.0/24