AS3356 8.20.192.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.20.192.0/248.20.193.0/248.20.194.0/248.20.195.0/248.20.196.0/248.20.197.0/248.20.198.0/248.20.199.0/24