5.141.128.0/18

ip:	5.141.128.0 
loc:	Russia, Chelyabinsk (Chelyabinsk Oblast)  
isp:	AS12389 PJSC Rostelecom » Rostelecom networks » Dynamic distribution IPs for broadband services 339.052 ms
route:	5.141.128.0/18, URAL_BRANCH - PJSC Rostelecom, RU (Yekaterinburg) ... 
reg:	5.136.0.0/13, RU, RIPE, 2012-07-03
asn:	AS12389 - ROSTELECOM-AS PJSC Rostelecom, RU
addr:	  PJSC Rostelecom Russian Federation
online:	  13.389 » latency: 66 ms (85ms) 

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