AS17645 116.51.0.0/21 CIDR and IP Range Summary.ASN: 17645 - NTT Singapore Pte LtdHost Count: 2046Addressable IPs: 2048116.51.0.0/24116.51.1.0/24116.51.2.0/24116.51.3.0/24116.51.4.0/24116.51.5.0/24116.51.6.0/24116.51.7.0/24