AS1 8.12.64.0/21 CIDR and IP Range Summary.ASN: 1 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.12.64.0/248.12.65.0/248.12.66.0/248.12.67.0/248.12.68.0/248.12.69.0/248.12.70.0/248.12.71.0/24