AS3561 209.27.16.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096209.27.16.0/24209.27.17.0/24209.27.18.0/24209.27.19.0/24209.27.20.0/24209.27.21.0/24209.27.22.0/24209.27.23.0/24209.27.24.0/24209.27.25.0/24209.27.26.0/24209.27.27.0/24209.27.28.0/24209.27.29.0/24209.27.30.0/24209.27.31.0/24