AS7552 171.244.136.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.244.136.0/24171.244.137.0/24171.244.138.0/24171.244.139.0/24171.244.140.0/24171.244.141.0/24171.244.142.0/24171.244.143.0/24