Country
Korea, Republic of
Autonomous systems registered in Korea, Republic of, largest IPv4 address space first.
Routed networks
920
of 1,183 registered
IPv4 addresses
161M
24,747 prefixes
IPv6 prefixes
2,363
KR
Networks
| AS | Network | IPv4 addresses | IPv4 prefixes | IPv6 prefixes | Upstreams | Downstreams |
|---|---|---|---|---|---|---|
| AS4766 | Korea Telecom | 69.98M | 2,729 | 60 | 29 | 560 |
| AS9318 | SK Broadband Co Ltd | 25.76M | 815 | 3 | 35 | 390 |
| AS17858 | LG POWERCOMM | 21.00M | 218 | 0 | 1 | 0 |
| AS3786 | LG DACOM Corporation | 8.72M | 855 | 57 | 43 | 405 |
| AS9644 | SK Telecom | 7.27M | 38 | 2 | 1 | 5 |
| AS9316 | DACOM-PUBNETPLUS | 1.81M | 17 | 0 | 1 | 0 |
| AS38091 | LG HelloVision Corp. | 1.59M | 121 | 16 | 3 | 13 |
| AS6619 | SamsungSDS Inc. | 1.37M | 117 | 8 | 36 | 4 |
| AS9848 | SEJONG NETWORKS | 1.11M | 227 | 2 | 13 | 54 |
| AS9457 | DREAMLINE CO. | 915K | 112 | 1 | 7 | 38 |
| AS4670 | Shinbiro | 862K | 405 | 1 | 2 | 5 |
| AS10036 | DLIVE | 843K | 478 | 0 | 6 | 2 |
| AS17853 | LGTELECOM | 776K | 353 | 2,078 | 2 | 0 |
| AS9689 | SK Broadband Co Ltd | 493K | 164 | 0 | 1 | 1 |
| AS17849 | SK Broadband Co Ltd | 444K | 198 | 0 | 1 | 0 |
| AS4668 | LG CNS | 433K | 63 | 0 | 4 | 0 |
| AS9694 | Seokyung Cable Television Co.. Ltd. | 394K | 103 | 0 | 3 | 0 |
| AS38661 | abcle | 390K | 121 | 0 | 2 | 5 |
| AS17841 | NATIONAL INFORMATION RESOURCES SERVICE | 366K | 722 | 0 | 4 | 3 |
| AS4663 | ELIMNET, INC. | 363K | 77 | 0 | 2 | 0 |
| AS9286 | KINX | 356K | 198 | 2 | 4 | 24 |
| AS17839 | LG HelloVision Corp. | 314K | 125 | 0 | 1 | 0 |
| AS9845 | LG HelloVision Corp. | 310K | 316 | 0 | 1 | 2 |
| AS1237 | KISTI | 307K | 212 | 1 | 3 | 43 |
| AS23563 | SK Broadband Co Ltd | 290K | 196 | 0 | 1 | 0 |
| AS17608 | ABN | 287K | 81 | 0 | 3 | 0 |
| AS9770 | LG HelloVision Corp. | 273K | 312 | 0 | 1 | 0 |
| AS17864 | SK Broadband Co Ltd | 269K | 31 | 0 | 1 | 0 |
| AS9981 | Saero Network Service LTD | 269K | 84 | 0 | 1 | 0 |
| AS9488 | Seoul National University | 263K | 20 | 0 | 4 | 0 |
| AS38700 | SMILESERV | 262K | 6 | 0 | 1 | 0 |
| AS17857 | SK Broadband Co Ltd | 247K | 244 | 0 | 1 | 0 |
| AS9943 | KangNam CableTV | 230K | 113 | 0 | 2 | 0 |
| AS9842 | LOTTE INNOVATE Co.,Ltd | 217K | 72 | 0 | 5 | 1 |
| AS9781 | GREEN CABLE TELEVISION STATION | 205K | 65 | 0 | 4 | 0 |
| AS23576 | NAVER Cloud Corp. | 196K | 169 | 0 | 39 | 1 |
| AS45996 | DAOU TECHNOLOGY | 194K | 101 | 0 | 1 | 2 |
| AS7562 | HCN Dongjak | 183K | 138 | 0 | 4 | 8 |
| AS18313 | LG HelloVision Corp. | 172K | 57 | 0 | 1 | 0 |
| AS17878 | DREAMMARK1 | 170K | 55 | 0 | 1 | 4 |
| AS17877 | KX NexG Co., LTD | 169K | 35 | 0 | 2 | 0 |
| AS45361 | Ulsan Jung-Ang Broadcasting Network | 166K | 20 | 0 | 5 | 0 |
| AS1781 | Korea Advanced Institute of Science and Technology | 156K | 8 | 0 | 3 | 0 |
| AS9761 | ASIANAIDT | 151K | 13 | 0 | 3 | 0 |
| AS4665 | Yonsei University | 149K | 33 | 0 | 3 | 0 |
| AS138195 | MOACK.Co.LTD | 148K | 193 | 4 | 6 | 20 |
| AS9697 | LG HelloVision Corp. | 148K | 105 | 0 | 1 | 0 |
| AS38690 | HyosungITX | 142K | 23 | 0 | 2 | 0 |
| AS10049 | SK Co., | 142K | 25 | 0 | 3 | 1 |
| AS23908 | IIAC | 141K | 35 | 0 | 4 | 0 |
| AS10066 | LG HelloVision Corp. | 140K | 85 | 0 | 1 | 0 |
| AS45985 | SamsungSDS Inc. | 139K | 21 | 0 | 1 | 0 |
| AS45370 | BROADBANDIDC | 138K | 80 | 1 | 1 | 1 |
| AS18310 | SK Broadband Co Ltd | 137K | 16 | 0 | 1 | 0 |
| AS45974 | NHNCLOUD | 136K | 369 | 0 | 5 | 3 |
| AS7564 | Korea Atomic Energy Research Institute | 133K | 32 | 0 | 2 | 0 |
| AS9753 | Dong-A Universirty | 132K | 24 | 0 | 2 | 0 |
| AS18318 | LG HelloVision Corp. | 131K | 48 | 0 | 1 | 0 |
| AS9321 | Hanyang University | 131K | 17 | 0 | 1 | 0 |
| AS9698 | LG HelloVision Corp. | 129K | 111 | 0 | 1 | 0 |
| AS9319 | HCN CHUNGBUK CABLE TV SYSTEMS | 127K | 204 | 0 | 1 | 0 |
| AS23584 | PUSAN CABLE TV SYSTEM CO., LTD. | 125K | 283 | 0 | 1 | 0 |
| AS7557 | Korea Trade Network | 118K | 66 | 0 | 3 | 0 |
| AS9946 | KCTV JEJU BROADCASTING | 117K | 131 | 0 | 2 | 0 |
| AS9756 | SK Broadband Co Ltd | 112K | 20 | 0 | 1 | 0 |
| AS17577 | LG HelloVision Corp. | 109K | 74 | 0 | 1 | 0 |
| AS17854 | SK Broadband Co Ltd | 108K | 52 | 0 | 1 | 0 |
| AS38103 | SK Broadband Co Ltd | 105K | 11 | 0 | 1 | 0 |
| AS38676 | flexnetworks | 103K | 209 | 0 | 3 | 0 |
| AS18300 | KEPCO | 102K | 275 | 0 | 2 | 0 |
| AS9706 | BUSAN EDUCATION RESEARCH & INFORMATION INSTITUTE | 102K | 7 | 0 | 1 | 0 |
| AS38109 | SK Broadband Co Ltd | 99.33K | 7 | 0 | 1 | 0 |
| AS4961 | Daewoo Information Systems | 97.54K | 27 | 0 | 2 | 0 |
| AS7623 | Gyeongbuk Cable TV | 95.74K | 84 | 0 | 1 | 0 |
| AS10171 | SKTelink | 94.21K | 48 | 0 | 5 | 0 |
| AS9976 | Namincheon Brodcasting Co., Ltd. | 92.16K | 11 | 0 | 3 | 0 |
| AS38669 | LG HelloVision Corp. | 88.83K | 139 | 0 | 1 | 0 |
| AS38684 | CMB Daejeon Broadcasting Co,.Ltd | 87.81K | 74 | 0 | 2 | 0 |
| AS17597 | SK Broadband Co Ltd | 87.55K | 24 | 0 | 1 | 0 |
| AS9317 | INHA UNIVERSITY | 85.50K | 51 | 0 | 3 | 0 |
| AS38673 | Korea Cable TV Kwangju Broadcasting | 83.97K | 27 | 0 | 2 | 0 |
| AS10052 | Kyungpook National University | 80.51K | 37 | 1 | 5 | 0 |
| AS10054 | CMB Kwangju Broadcasting | 79.62K | 89 | 0 | 2 | 0 |
| AS17583 | Keumgang Cable Network | 78.85K | 53 | 0 | 4 | 0 |
| AS9569 | SEOCHO CABLE SYSTEMS CO., LTD. | 78.70K | 306 | 0 | 1 | 0 |
| AS17575 | Chung-Ang University | 77.82K | 5 | 0 | 1 | 0 |
| AS9762 | kt HCN Co.,Ltd. | 76.80K | 111 | 0 | 1 | 0 |
| AS10175 | Kumho Cable | 76.80K | 51 | 0 | 1 | 0 |
| AS9273 | ITCENENTEC CO.,LTD. | 76.03K | 4 | 0 | 2 | 0 |
| AS18305 | POSCO DX | 75.88K | 69 | 0 | 5 | 0 |
| AS38095 | SK Broadband Co Ltd | 75.52K | 12 | 0 | 1 | 0 |
| AS9952 | Hostway IDC | 74.75K | 174 | 0 | 2 | 0 |
| AS38121 | LG HelloVision Corp. | 74.75K | 129 | 0 | 1 | 0 |
| AS17598 | LG HelloVision Corp. | 74.50K | 209 | 0 | 1 | 0 |
| AS9950 | DACOM-PUBNETPLUS | 74.43K | 237 | 0 | 1 | 4 |
| AS9686 | SungKyunKwan University (SKKU) | 74.24K | 8 | 0 | 3 | 0 |
| AS9274 | Pusan National University | 70.91K | 15 | 0 | 1 | 0 |
| AS45372 | ULNetworks Co., Ltd. | 70.91K | 9 | 0 | 2 | 0 |
| AS10164 | SK Broadband Co Ltd | 69.63K | 10 | 0 | 1 | 0 |
| AS10197 | Chonnam National University | 68.10K | 11 | 1 | 4 | 0 |
Registration country comes from the regional registries' delegation files. A network registered here may announce space used anywhere.