223.131.0.0/19

ip:	223.131.0.0 
loc:	South Korea, Seoul (Seoul)  
isp:	AS9689 SK Broadband Co Ltd » SK Broadband Co Ltd » TBROAD DobongGangbukGwangjinSeongdong 742.171 ms
route:	223.131.0.0/19, broadNnet-KR - SK Broadband Co Ltd, KR (Seoul (Dobong-ro 81-gil)) ... 
reg:	223.131.0.0/16, KR, APNIC, 2010-07-14
asn:	AS9689 - SKB-FCABLE-AS SK Broadband Co Ltd, KR
	  AS9318  - SKB-AS SK Broadband Co Ltd, KR
addr:	  Seoul Jung-gu Toegye-ro 24 SK Namsan Green Bldg.
online:	  695 » latency: 291 ms (271ms) 

see also:
   223.131.0.0/17   AS9689   broadNnet-KR SK Broadband Co Ltd, KR