AS3303 212.243.144.0/20 CIDR and IP Range Summary.ASN: 3303 - Swisscom (Schweiz) AGHost Count: 4094Addressable IPs: 4096212.243.144.0/24212.243.145.0/24212.243.146.0/24212.243.147.0/24212.243.148.0/24212.243.149.0/24212.243.150.0/24212.243.151.0/24212.243.152.0/24212.243.153.0/24212.243.154.0/24212.243.155.0/24212.243.156.0/24212.243.157.0/24212.243.158.0/24212.243.159.0/24