27.64.0.0/18

ip:	27.64.0.0 localhost
loc:	Vietnam, Ho Chi Minh City (Ho Chi Minh)  
isp:	AS7552 Viettel Group » Viettel Group » VIETTEL 1204.209 ms
route:	27.64.0.0/18, VIETTEL-VN - Viettel Group, VN (Hanoi) ... 
reg:	27.64.0.0/12, VN, APNIC, 2010-04-27
asn:	AS7552 - VIETEL-AS-AP Viettel Group, VN
addr:	  Ha Noi VietNam
online:	  11.291 » latency: 283 ms (284ms) 

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