AS3561 66.100.144.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204866.100.144.0/2466.100.145.0/2466.100.146.0/2466.100.147.0/2466.100.148.0/2466.100.149.0/2466.100.150.0/2466.100.151.0/24