AS1 8.248.72.0/21 CIDR and IP Range Summary.ASN: 1 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.248.72.0/248.248.73.0/248.248.74.0/248.248.75.0/248.248.76.0/248.248.77.0/248.248.78.0/248.248.79.0/24