5.143.0.0/18

ip:	5.143.0.0 
loc:	Russia, Vladivostok (Primorye)  
isp:	AS12389 PJSC Rostelecom » Rostelecom networks » OJSC Rostelecom Far-East Region 600.572 ms
route:	5.143.0.0/18, POL-PPPOE-NET-UNL - PJSC Rostelecom Far East Region, RU (Vladivostok) ... 
reg:	5.136.0.0/13, RU, RIPE, 2012-07-03
asn:	AS12389 - ROSTELECOM-AS PJSC Rostelecom, RU
addr:	  PJSC Rostelecom Russian Federation
online:	  10.607 ยป latency: 145 ms (158ms) 

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