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 | 70,015,480 | 1.92 x 234 | 4 | 3,310 | |
| SK Broadband Co Ltd | 28,642,572 | 1.5 x 233 | 23 | 2,014 | |
| LG POWERCOMM | 20,602,880 | 0 | 1 | 201 | |
| 4 | LG DACOM Corporation | 8,779,944 | 1.21 x 234 | 2 | 5,249 |
| 5 | SK Telecom | 7,994,624 | 233 | 2 | 141 |
| 6 | LG HelloVision Corp. | 3,705,088 | 232 | 16 | 2,054 |
| 7 | DACOM-PUBNETPLUS | 1,887,608 | 0 | 2 | 285 |
| 8 | DREAMLINE CO. | 1,691,136 | 232 | 1 | 106 |
| 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 | 822,784 | 0 | 2 | 321 |
| 13 | LGTELECOM | 759,296 | 1.64 x 230 | 1 | 1,033 |
| 14 | LG CNS | 434,736 | 0 | 1 | 69 |
| 15 | Seokyung Cable Television Co.. Ltd. | 393,216 | 0 | 1 | 102 |
| 16 | KINX | 373,632 | 1.5 x 217 | 2 | 238 |
| 17 | abcle | 368,896 | 0 | 1 | 104 |
| 18 | ELIMNET, INC. | 359,936 | 0 | 1 | 66 |
| 19 | KISTI | 318,516 | 232 | 3 | 248 |
| 20 | NATIONAL INFORMATION RESOURCES SERVICE | 299,072 | 0 | 1 | 716 |