AS3561 63.137.80.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409663.137.80.0/2463.137.81.0/2463.137.82.0/2463.137.83.0/2463.137.84.0/2463.137.85.0/2463.137.86.0/2463.137.87.0/2463.137.88.0/2463.137.89.0/2463.137.90.0/2463.137.91.0/2463.137.92.0/2463.137.93.0/2463.137.94.0/2463.137.95.0/24