List of the top 20 organizations with the largest IP allocations in South Korea
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Korea Telecom | 70,027,368 | 1.54 x 236 | 4 | 3,245 | |
| SK Broadband Co Ltd | 28,675,459 | 1.5 x 233 | 23 | 2,131 | |
| LG POWERCOMM | 21,001,728 | 0 | 1 | 218 | |
| 4 | LG DACOM Corporation | 8,763,392 | 1.21 x 234 | 2 | 1,003 |
| 5 | SK Telecom | 7,776,768 | 233 | 2 | 95 |
| 6 | LG HelloVision Corp. | 3,709,952 | 232 | 16 | 2,102 |
| 7 | DACOM-PUBNETPLUS | 1,885,712 | 0 | 2 | 261 |
| 8 | SamsungSDS Inc. | 1,513,728 | 1.75 x 234 | 3 | 153 |
| 9 | SEJONG NETWORKS | 1,089,090 | 233 | 2 | 214 |
| 10 | DREAMLINE CO. | 917,760 | 232 | 1 | 115 |
| 11 | Shinbiro | 867,328 | 0 | 2 | 416 |
| 12 | DLIVE | 842,528 | 0 | 1 | 478 |
| 13 | LGTELECOM | 765,184 | 1.65 x 230 | 1 | 1,166 |
| 14 | LG CNS | 435,184 | 0 | 1 | 70 |
| 15 | Seokyung Cable Television Co.. Ltd. | 394,240 | 0 | 1 | 103 |
| 16 | KINX | 386,224 | 217 | 2 | 272 |
| 17 | abcle | 373,504 | 0 | 1 | 114 |
| 18 | NATIONAL INFORMATION RESOURCES SERVICE | 365,784 | 0 | 1 | 727 |
| 19 | ELIMNET, INC. | 362,496 | 0 | 1 | 76 |
| 20 | KISTI | 315,136 | 232 | 3 | 248 |