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 | 69,954,048 | 1.09 x 235 | 4 | 2,263 | |
| SK Broadband Co Ltd | 28,646,700 | 1.5 x 233 | 23 | 2,009 | |
| LG POWERCOMM | 21,000,960 | 0 | 1 | 215 | |
| 4 | LG DACOM Corporation | 8,774,253 | 1.21 x 234 | 2 | 5,230 |
| 5 | SK Telecom | 7,923,456 | 233 | 2 | 127 |
| 6 | LG HelloVision Corp. | 3,720,960 | 232 | 16 | 2,116 |
| 7 | DACOM-PUBNETPLUS | 1,882,880 | 0 | 2 | 45 |
| 8 | DREAMLINE CO. | 1,696,256 | 232 | 1 | 120 |
| 9 | SamsungSDS Inc. | 1,515,008 | 1.75 x 234 | 3 | 155 |
| 10 | SEJONG NETWORKS | 1,129,472 | 233 | 2 | 269 |
| 11 | Shinbiro | 856,832 | 0 | 2 | 374 |
| 12 | DLIVE | 841,472 | 0 | 1 | 474 |
| 13 | LGTELECOM | 762,624 | 1.64 x 230 | 1 | 1,094 |
| 14 | LG CNS | 434,432 | 0 | 1 | 63 |
| 15 | Seokyung Cable Television Co.. Ltd. | 393,472 | 0 | 1 | 103 |
| 16 | KINX | 380,416 | 1.5 x 217 | 2 | 227 |
| 17 | abcle | 373,504 | 0 | 1 | 114 |
| 18 | ELIMNET, INC. | 360,448 | 0 | 1 | 68 |
| 19 | KISTI | 311,192 | 232 | 3 | 242 |
| 20 | NATIONAL INFORMATION RESOURCES SERVICE | 289,280 | 0 | 1 | 459 |