AS1 8.4.168.0/21 CIDR and IP Range Summary.ASN: 1 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.4.168.0/248.4.169.0/248.4.170.0/248.4.171.0/248.4.172.0/248.4.173.0/248.4.174.0/248.4.175.0/24