AS3356 198.78.16.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048198.78.16.0/24198.78.17.0/24198.78.18.0/24198.78.19.0/24198.78.20.0/24198.78.21.0/24198.78.22.0/24198.78.23.0/24