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 | 70,002,352 | 1.92 x 234 | 4 | 3,270 | |
| SK Broadband Co Ltd | 28,642,312 | 1.5 x 233 | 23 | 2,010 | |
| LG POWERCOMM | 20,602,880 | 0 | 1 | 201 | |
| 4 | LG DACOM Corporation | 8,780,452 | 1.21 x 234 | 2 | 5,247 |
| 5 | SK Telecom | 7,926,272 | 233 | 2 | 135 |
| 6 | LG HelloVision Corp. | 3,705,088 | 232 | 16 | 2,054 |
| 7 | DACOM-PUBNETPLUS | 1,887,080 | 0 | 2 | 280 |
| 8 | DREAMLINE CO. | 1,691,392 | 232 | 1 | 107 |
| 9 | SamsungSDS Inc. | 1,514,752 | 1.75 x 234 | 3 | 154 |
| 10 | SEJONG NETWORKS | 1,089,792 | 233 | 2 | 186 |
| 11 | DLIVE | 841,728 | 0 | 1 | 478 |
| 12 | Shinbiro | 825,344 | 0 | 2 | 324 |
| 13 | LGTELECOM | 726,528 | 1.64 x 230 | 1 | 1,032 |
| 14 | LG CNS | 434,736 | 0 | 1 | 69 |
| 15 | Seokyung Cable Television Co.. Ltd. | 393,216 | 0 | 1 | 102 |
| 16 | KINX | 373,856 | 1.5 x 217 | 2 | 238 |
| 17 | abcle | 369,408 | 0 | 1 | 105 |
| 18 | ELIMNET, INC. | 359,936 | 0 | 1 | 66 |
| 19 | KISTI | 318,516 | 232 | 3 | 248 |
| 20 | NATIONAL INFORMATION RESOURCES SERVICE | 299,080 | 0 | 1 | 717 |