AS22561 64.91.16.0/21 CIDR and IP Range Summary.ASN: 22561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204864.91.16.0/2464.91.17.0/2464.91.18.0/2464.91.19.0/2464.91.20.0/2464.91.21.0/2464.91.22.0/2464.91.23.0/24