AS1 8.3.8.0/21 CIDR and IP Range Summary.ASN: 1 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.3.8.0/248.3.9.0/248.3.10.0/248.3.11.0/248.3.12.0/248.3.13.0/248.3.14.0/248.3.15.0/24