AS3561 208.138.0.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096208.138.0.0/24208.138.1.0/24208.138.2.0/24208.138.3.0/24208.138.4.0/24208.138.5.0/24208.138.6.0/24208.138.7.0/24208.138.8.0/24208.138.9.0/24208.138.10.0/24208.138.11.0/24208.138.12.0/24208.138.13.0/24208.138.14.0/24208.138.15.0/24