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 | 70,012,256 | 1.48 x 236 | 4 | 3,221 | |
| SK Broadband Co Ltd | 28,673,062 | 1.5 x 233 | 23 | 2,136 | |
| LG POWERCOMM | 21,001,728 | 0 | 1 | 218 | |
| 4 | LG DACOM Corporation | 8,767,884 | 1.21 x 234 | 2 | 5,240 |
| 5 | SK Telecom | 7,916,032 | 233 | 2 | 107 |
| 6 | LG HelloVision Corp. | 3,717,888 | 232 | 16 | 2,111 |
| 7 | DACOM-PUBNETPLUS | 1,885,312 | 0 | 2 | 261 |
| 8 | DREAMLINE CO. | 1,705,728 | 232 | 1 | 147 |
| 9 | SamsungSDS Inc. | 1,515,520 | 1.75 x 234 | 3 | 157 |
| 10 | SEJONG NETWORKS | 1,089,280 | 233 | 2 | 149 |
| 11 | Shinbiro | 867,072 | 0 | 2 | 415 |
| 12 | DLIVE | 842,016 | 0 | 1 | 476 |
| 13 | LGTELECOM | 765,952 | 1.65 x 230 | 1 | 1,169 |
| 14 | LG CNS | 435,184 | 0 | 1 | 70 |
| 15 | Seokyung Cable Television Co.. Ltd. | 394,240 | 0 | 1 | 103 |
| 16 | KINX | 389,040 | 217 | 2 | 283 |
| 17 | abcle | 373,504 | 0 | 1 | 114 |
| 18 | NATIONAL INFORMATION RESOURCES SERVICE | 366,424 | 0 | 1 | 727 |
| 19 | ELIMNET, INC. | 362,496 | 0 | 1 | 76 |
| 20 | KISTI | 311,552 | 232 | 3 | 235 |