27.71.16.0/23

ip:	27.71.16.0 localhost
loc:	Vietnam, Hanoi (Hanoi)  
isp:	AS38731 Vietel - CHT Compamy Ltd » VIETTEL » Viettel Group 1217.028 ms
route:	27.71.16.0/23, VIETTEL-VN - Viettel Group, VN (Hanoi) ... 
reg:	27.64.0.0/12, VN, APNIC, 2010-04-27
asn:	AS38731 - VTDC-AS-VN Vietel - CHT Compamy Ltd, VN
addr:	  Ha Noi VietNam
online:	  302 » latency: 274 ms (274ms) 

see also:
   27.64.0.0/12     AS7552   VIETTEL-VN Viettel Group, VN
   27.64.0.0/13     AS7552   VIETTEL-VN Viettel Group, VN
   27.68.0.0/14     AS7552   VIETTEL-VN Viettel Group, VN
   27.71.0.0/16     AS7552   VIETTEL-VN Viettel Group, VN
   27.71.16.0/21    AS7552   VIETTEL-VN Viettel Group, VN
   27.71.16.0/22    AS38731  VIETTEL-VN Viettel Group, VN