AS3561 63.128.144.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409663.128.144.0/2463.128.145.0/2463.128.146.0/2463.128.147.0/2463.128.148.0/2463.128.149.0/2463.128.150.0/2463.128.151.0/2463.128.152.0/2463.128.153.0/2463.128.154.0/2463.128.155.0/2463.128.156.0/2463.128.157.0/2463.128.158.0/2463.128.159.0/24