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 | 69,444,874 | 1.21 x 237 | 6 | 3,450 | |
| SK Broadband Co Ltd | 25,122,965 | 233 | 5 | 848 | |
| LG POWERCOMM | 20,996,096 | 0 | 1 | 207 | |
| 4 | SK Telecom | 14,321,924 | 233 | 2 | 119 |
| 5 | LG DACOM Corporation | 8,909,622 | 1.13 x 232 | 3 | 1,307 |
| 6 | LG HelloVision Corp. | 2,194,068 | 0 | 17 | 2,014 |
| 7 | T Broad | 2,082,760 | 0 | 9 | 577 |
| 8 | DACOM-PUBNETPLUS | 1,888,850 | 0 | 2 | 331 |
| 9 | DREAMLINE CO. | 1,793,792 | 0 | 1 | 69 |
| 10 | SamsungSDS Inc. | 1,236,480 | 1.75 x 234 | 2 | 118 |
| 11 | Sejong Telecom | 1,020,960 | 233 | 2 | 97 |
| 12 | DLIVE | 842,703 | 232 | 1 | 484 |
| 13 | Shinbiro | 826,396 | 0 | 2 | 379 |
| 14 | LGTELECOM | 751,616 | 1.31 x 230 | 1 | 525 |
| 15 | Tbroad Ginam Broadcating Co., Ltd. | 633,600 | 0 | 1 | 85 |
| 16 | purplestones | 555,872 | 0 | 1 | 285 |
| 17 | TBROAD HANVIT BROADCASTING CO.,LTD. | 470,272 | 0 | 1 | 143 |
| 18 | Ulsan Jung-Ang Broadcasting Network | 457,280 | 0 | 1 | 136 |
| 19 | LG CNS | 438,921 | 0 | 2 | 107 |
| 20 | Tbroad Suwon Broadcasting Corporation | 406,784 | 1.94 x 236 | 1 | 159 |