AS3900 207.207.16.0/20 CIDR and IP Range Summary.ASN: 3900 - Switch LtdHost Count: 4094Addressable IPs: 4096207.207.16.0/24207.207.17.0/24207.207.18.0/24207.207.19.0/24207.207.20.0/24207.207.21.0/24207.207.22.0/24207.207.23.0/24207.207.24.0/24207.207.25.0/24207.207.26.0/24207.207.27.0/24207.207.28.0/24207.207.29.0/24207.207.30.0/24207.207.31.0/24