5.143.136.0/21

ip:	5.143.136.0 
loc:	Russia, Belgorod (Belgorod Oblast)  
isp:	AS12389 PJSC Rostelecom » Rostelecom networks » OJSC Rostelecom 457.283 ms
route:	5.143.136.0/21, MACROREGIONAL_CENTER - OJSC Rostelecom, Belgorod branch, RU (Belgorod) ... 
reg:	5.136.0.0/13, RU, RIPE, 2012-07-03
asn:	AS12389 - ROSTELECOM-AS PJSC Rostelecom, RU
addr:	  Belgorod Russia 81 B. Khmelnitckogo avenue
online:	  1.129 » latency: 53 ms (54ms) 

see also:
   5.136.0.0/13     AS12389  RU-RTK-20120703 PJSC Rostelecom, RU