AS4673 163.135.128.0/20 CIDR and IP Range Summary.ASN: 4673 - NTT Data CorporationHost Count: 4094Addressable IPs: 4096163.135.128.0/24163.135.129.0/24163.135.130.0/24163.135.131.0/24163.135.132.0/24163.135.133.0/24163.135.134.0/24163.135.135.0/24163.135.136.0/24163.135.137.0/24163.135.138.0/24163.135.139.0/24163.135.140.0/24163.135.141.0/24163.135.142.0/24163.135.143.0/24