AS3303 217.193.208.0/21 CIDR and IP Range Summary.ASN: 3303 - Swisscom (Schweiz) AGHost Count: 2046Addressable IPs: 2048217.193.208.0/24217.193.209.0/24217.193.210.0/24217.193.211.0/24217.193.212.0/24217.193.213.0/24217.193.214.0/24217.193.215.0/24