AS4758 164.100.208.0/21 CIDR and IP Range Summary.ASN: 4758 - National Informatics CentreHost Count: 2046Addressable IPs: 2048164.100.208.0/24164.100.209.0/24164.100.210.0/24164.100.211.0/24164.100.212.0/24164.100.213.0/24164.100.214.0/24164.100.215.0/24