AS3900 207.207.32.0/21 CIDR and IP Range Summary.ASN: 3900 - Switch LtdHost Count: 2046Addressable IPs: 2048207.207.32.0/24207.207.33.0/24207.207.34.0/24207.207.35.0/24207.207.36.0/24207.207.37.0/24207.207.38.0/24207.207.39.0/24