AS3561 206.99.112.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048206.99.112.0/24206.99.113.0/24206.99.114.0/24206.99.115.0/24206.99.116.0/24206.99.117.0/24206.99.118.0/24206.99.119.0/24