AS3561 109.166.48.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048109.166.48.0/24109.166.49.0/24109.166.50.0/24109.166.51.0/24109.166.52.0/24109.166.53.0/24109.166.54.0/24109.166.55.0/24