AS3561 205.139.40.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048205.139.40.0/24205.139.41.0/24205.139.42.0/24205.139.43.0/24205.139.44.0/24205.139.45.0/24205.139.46.0/24205.139.47.0/24