AS45133 164.78.240.0/21 CIDR and IP Range Summary.ASN: 45133 - Singapore PolytechnicHost Count: 2046Addressable IPs: 2048164.78.240.0/24164.78.241.0/24164.78.242.0/24164.78.243.0/24164.78.244.0/24164.78.245.0/24164.78.246.0/24164.78.247.0/24