AS3303 212.243.48.0/21 CIDR and IP Range Summary.ASN: 3303 - Swisscom (Schweiz) AGHost Count: 2046Addressable IPs: 2048212.243.48.0/24212.243.49.0/24212.243.50.0/24212.243.51.0/24212.243.52.0/24212.243.53.0/24212.243.54.0/24212.243.55.0/24