AS3356 8.28.104.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.28.104.0/248.28.105.0/248.28.106.0/248.28.107.0/248.28.108.0/248.28.109.0/248.28.110.0/248.28.111.0/24