The National Library of Korea
AS10050 (NL-AS-KR) announces at least two prefixes:
124.137.58.0/24
SK Broadband Co Ltd
about a second ago
broadNnet-KR
124.136.0.0-124.139.255.255
125.61.100.0/24
125.61.0.0-125.61.127.255
0