AS3561 207.1.16.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096207.1.16.0/24207.1.17.0/24207.1.18.0/24207.1.19.0/24207.1.20.0/24207.1.21.0/24207.1.22.0/24207.1.23.0/24207.1.24.0/24207.1.25.0/24207.1.26.0/24207.1.27.0/24207.1.28.0/24207.1.29.0/24207.1.30.0/24207.1.31.0/24