A list of all South Korea ASNs including hosting providers, ISPs, and businesses with announced IPv4 and IPv6 prefixes.
| ASN | Type | IPv4 Routes | IPv6 Routes | Company |
|---|---|---|---|---|
| AS38407 | Government | 21 | 0 | Gyeonggi-Do Ansan Office of Education |
| AS45399 | Other Business | 21 | 0 | Hanjin Information Systems Telecommunication Co., Ltd |
| AS9491 | Other Business | 21 | 0 | NICE |
| AS9867 | Education | 21 | 0 | VISION College of Jeonju |
| AS45560 | Other Business | 20 | 1 | Top Global |
| AS10045 | Education | 20 | 0 | Hanbat National University |
| AS10053 | Other Business | 20 | 0 | yeonsung University |
| AS23552 | Education | 20 | 0 | Korea Nazarene University |
| AS23582 | Other Business | 20 | 0 | Doosan Corporation Digital Innovation |
| AS38424 | ISP & Mobile | 20 | 0 | KOREA CABLE TELECOM |
| AS45361 | Other Business | 20 | 0 | Ulsan Jung-Ang Broadcasting Network |
| AS45363 | Education | 20 | 0 | SunMoon University |
| AS4790 | Other Business | 20 | 0 | Chosun ilbo Inc. |
| AS9488 | Education | 20 | 0 | Seoul National University |
| AS9858 | Government | 19 | 1 | Korea Internet Security Agency |
| AS10073 | Other Business | 19 | 0 | Korea National Open University |
| AS10190 | Education | 19 | 0 | Joongbu University |
| AS152214 | Other Business | 19 | 0 | Korean Air Lines |
| AS152232 | ISP & Mobile | 19 | 0 | kt cloud Co., Ltd |
| AS18031 | Education | 19 | 0 | Sangmyung University |
| AS18168 | Other Business | 19 | 0 | CMB TAEGU BROADCAST SUSEONG |
| AS9962 | Other Business | 19 | 0 | Sunchon National University |
| AS17574 | Other Business | 18 | 0 | Seoul Metropolitan Government Computer Center |
| AS23601 | Other Business | 18 | 0 | tsis |
| AS23714 | Education | 18 | 0 | Keimyung University |
| AS38428 | Other Business | 18 | 0 | Korea Information Communicaions Co. |
| AS4669 | Other Business | 18 | 0 | SOOP Co., Ltd |
| AS55586 | Education | 18 | 0 | THE CATHOLIC UNIVERSITY OF KOREA SONGSIM |
| AS55632 | Other Business | 18 | 0 | Sejong City Office of Education |
| AS9322 | Education | 18 | 0 | Institute of Information and Computing, EWHA WOMANS UNIV. |
| AS9684 | Other Business | 18 | 0 | HANWHA Corp. Information Service div. |
| AS9782 | Education | 18 | 0 | WooSong University |
| AS9864 | Other Business | 18 | 0 | Korea Securities Depository |
| AS9959 | Other Business | 18 | 0 | KOREA STOCK EXCHANGE |
| AS131093 | Other Business | 17 | 0 | viva republica |
| AS17845 | Government | 17 | 0 | Gyeonggi Technopark |
| AS18026 | Education | 17 | 0 | JEJU NATIONAL UNIVERSITY |
| AS18334 | Other Business | 17 | 0 | Gyounggidongbu cable tv co., Ltd. |
| AS38690 | Other Business | 17 | 0 | HyosungITX |
| AS4791 | Other Business | 17 | 0 | JoongAng Ilbo |
| AS9316 | Other Business | 17 | 0 | DACOM-PUBNETPLUS |
| AS9321 | Education | 17 | 0 | Hanyang University |
| AS9691 | Other Business | 17 | 0 | KYUNGSUNG UNIVERSITY |
| AS17609 | Education | 16 | 0 | Silla Univ |
| AS18310 | ISP & Mobile | 16 | 0 | SK Broadband Co Ltd |
| AS38117 | Other Business | 16 | 0 | jin san cable net company ltd |
| AS38387 | Other Business | 16 | 0 | CMB Sejong Broadcasting Co,.Ltd |
| AS9853 | Other Business | 16 | 0 | GORayNet |
| AS9862 | Other Business | 16 | 0 | GORayNet |
| AS9871 | Other Business | 16 | 0 | Gyeong Sang Buk-Do Office of Education |
| AS23581 | Other Business | 15 | 0 | Hynix Semiconductor Inc. |
| AS38090 | Other Business | 15 | 0 | pearlabyss |
| AS46002 | Other Business | 15 | 0 | PHIS |
| AS46012 | Education | 15 | 0 | Induk University |
| AS9274 | Education | 15 | 0 | Pusan National University |
| AS9523 | Other Business | 15 | 0 | Mokwon University |
| AS9532 | Other Business | 15 | 0 | MIRAE ASSET SECURITIES CO., LTD. |
| AS9769 | Education | 15 | 0 | Sejong University |
| AS10044 | Government | 14 | 0 | Rural Development Administration (RDA) |
| AS18164 | Education | 14 | 0 | Mokpo University |
| AS23561 | Education | 14 | 0 | Yongin University |
| AS55622 | Education | 14 | 0 | CNUE |
| AS9860 | Other Business | 14 | 0 | National Health Insurance Service |
| AS9868 | Other Business | 14 | 0 | Catholic University of DAEGU |
| AS9978 | Other Business | 14 | 0 | The University of Seoul |
| AS23600 | Government | 13 | 5 | Korea Internet Security Agency |
| AS131795 | Education | 13 | 0 | KOREA INSTITUTE OF ENERGY RESEARCH |
| AS17573 | ISP & Mobile | 13 | 0 | SK Broadband Co Ltd |
| AS17834 | Other Business | 13 | 0 | WOORICARD |
| AS18038 | Education | 13 | 0 | Korea National University of Education |
| AS18330 | Education | 13 | 0 | HONGIK UNIVERSITY |
| AS216425 | Other Business | 13 | 0 | TEFEXIA Co., Ltd. |
| AS38402 | Other Business | 13 | 0 | Gyeonggi Provincial Suwon Office of Education |
| AS45972 | Other Business | 13 | 0 | KOREA LAND AND GEOSPATIAL INFORMATIX CORPORATION |
| AS55626 | Other Business | 13 | 0 | Kyungin Womens college |
| AS7559 | Other Business | 13 | 0 | donga.com |
| AS9761 | Other Business | 13 | 0 | ASIANAIDT |
| AS9970 | Other Business | 13 | 0 | Korea University of Technology and Education |
| AS9972 | Hosting Provider | 13 | 0 | INTMANAGEMENT Corp., |
| AS4671 | Other Business | 12 | 3 | KTOA |
| AS17865 | Other Business | 12 | 0 | Supreme Court of Korea |
| AS17870 | Education | 12 | 0 | Kyung Hee University |
| AS18320 | Education | 12 | 0 | Kwangju National University of Education |
| AS18329 | Education | 12 | 0 | Sangmyung University |
| AS23569 | Education | 12 | 0 | SEOJEONG COLLEGE |
| AS38095 | ISP & Mobile | 12 | 0 | SK Broadband Co Ltd |
| AS9780 | Education | 12 | 0 | INJE UNIVERSITY |
| AS10197 | Education | 11 | 1 | Chonnam National University |
| AS10063 | Government | 11 | 0 | Korea Meteorological Administration |
| AS10178 | Other Business | 11 | 0 | Kakaopay Corp |
| AS38103 | ISP & Mobile | 11 | 0 | SK Broadband Co Ltd |
| AS38113 | Education | 11 | 0 | KUMC |
| AS38389 | Other Business | 11 | 0 | FAMOUS WORKER |
| AS4664 | Other Business | 11 | 0 | Shinbiro |
| AS55616 | Other Business | 11 | 0 | DGIST |
| AS55621 | Education | 11 | 0 | Jeonju National University Of Education |
| AS55625 | Education | 11 | 0 | Chungwoon University |
| AS55627 | Education | 11 | 0 | Dongduk Womens University |
| AS9641 | Other Business | 11 | 0 | Korea Development Bank |
| AS9701 | Hosting Provider | 11 | 0 | viaweb |