AS7552 27.77.248.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 204827.77.248.0/2427.77.249.0/2427.77.250.0/2427.77.251.0/2427.77.252.0/2427.77.253.0/2427.77.254.0/2427.77.255.0/24