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 | 70,031,096 | 1.43 x 237 | 4 | 3,270 | |
| SK Broadband Co Ltd | 28,668,917 | 233 | 23 | 2,474 | |
| LG POWERCOMM | 20,608,512 | 0 | 1 | 212 | |
| 4 | LG DACOM Corporation | 8,736,000 | 1.21 x 234 | 2 | 952 |
| 5 | SK Telecom | 7,271,680 | 233 | 1 | 40 |
| 6 | LG HelloVision Corp. | 3,708,672 | 232 | 16 | 2,097 |
| 7 | DACOM-PUBNETPLUS | 1,885,712 | 0 | 2 | 261 |
| 8 | SamsungSDS Inc. | 1,513,472 | 1.75 x 234 | 3 | 152 |
| 9 | SEJONG NETWORKS | 1,103,938 | 233 | 2 | 222 |
| 10 | DREAMLINE CO. | 914,432 | 232 | 1 | 112 |
| 11 | DLIVE | 842,528 | 0 | 1 | 478 |
| 12 | Shinbiro | 837,632 | 0 | 2 | 370 |
| 13 | LGTELECOM | 732,672 | 1.67 x 230 | 1 | 1,359 |
| 14 | LG CNS | 433,136 | 0 | 1 | 62 |
| 15 | Seokyung Cable Television Co.. Ltd. | 394,240 | 0 | 1 | 103 |
| 16 | abcle | 370,688 | 0 | 1 | 106 |
| 17 | KINX | 366,704 | 217 | 2 | 240 |
| 18 | NATIONAL INFORMATION RESOURCES SERVICE | 366,136 | 0 | 1 | 722 |
| 19 | ELIMNET, INC. | 362,752 | 0 | 1 | 77 |
| 20 | KISTI | 315,136 | 232 | 3 | 248 |