AS18403 1.54.240.0/21 CIDR and IP Range Summary.ASN: 18403 - FPT Telecom CompanyHost Count: 2046Addressable IPs: 20481.54.240.0/241.54.241.0/241.54.242.0/241.54.243.0/241.54.244.0/241.54.245.0/241.54.246.0/241.54.247.0/24