AS3561 64.243.192.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409664.243.192.0/2464.243.193.0/2464.243.194.0/2464.243.195.0/2464.243.196.0/2464.243.197.0/2464.243.198.0/2464.243.199.0/2464.243.200.0/2464.243.201.0/2464.243.202.0/2464.243.203.0/2464.243.204.0/2464.243.205.0/2464.243.206.0/2464.243.207.0/24