AS3561 206.25.144.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096206.25.144.0/24206.25.145.0/24206.25.146.0/24206.25.147.0/24206.25.148.0/24206.25.149.0/24206.25.150.0/24206.25.151.0/24206.25.152.0/24206.25.153.0/24206.25.154.0/24206.25.155.0/24206.25.156.0/24206.25.157.0/24206.25.158.0/24206.25.159.0/24