AS15404 145.224.144.0/21 CIDR and IP Range Summary.ASN: 15404 - Colt Technology Services Group LimitedHost Count: 2046Addressable IPs: 2048145.224.144.0/24145.224.145.0/24145.224.146.0/24145.224.147.0/24145.224.148.0/24145.224.149.0/24145.224.150.0/24145.224.151.0/24