27.75.0.0/18

ip:	27.75.0.0 localhost
loc:	Vietnam, Ho Chi Minh City (Ho Chi Minh)  
isp:	AS7552 Viettel Group » Newass2011xDSLHN »  1339.764 ms
route:	27.75.0.0/18, VIETTEL-VN - Viettel Group, VN (Ho Chi Minh City) ... 
reg:	27.64.0.0/12, VN, APNIC, 2010-04-27
asn:	AS7552 - VIETEL-AS-AP Viettel Group, VN
addr:	  Ha Noi VietNam
online:	  7.257 » latency: 313 ms (313ms) 

see also:
   27.64.0.0/12     AS7552   VIETTEL-VN Viettel Group, VN
   27.72.0.0/13     AS7552   VIETTEL-VN Viettel Group, VN
   27.72.0.0/14     AS7552   VIETTEL-VN Viettel Group, VN
   27.75.0.0/16     AS7552   VIETTEL-VN Viettel Group, VN