KRNIC is not an ISP but a National Internet Registry similar to APNIC.

AS Number          : AS9981
AS Name            : SAERONET-AS-KR

[ Organization Information ]
Name               : Saero Network Service LTD
Address            : ., Gyeongsangbuk-do Gumi-si Songjeong-daero 164
Zip Code           : 39272

Name               : AS Manager
Phone              : +82-2-1877-8000
E-Mail             : hcg12224ab1@hcn.co.kr


- KISA/KRNIC WHOIS Service -