AS3356 8.29.216.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.29.216.0/248.29.217.0/248.29.218.0/248.29.219.0/248.29.220.0/248.29.221.0/248.29.222.0/248.29.223.0/24