List of the top 20 organizations with the largest IP allocations in South Africa
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| MTN SA | 6,887,168 | 1.5 x 233 | 2 | 350 | |
| Dimension Data | 6,379,008 | 1.03 x 237 | 3 | 1,339 | |
| Telkom SA Ltd. | 5,463,552 | 1.01 x 244 | 5 | 2,175 | |
| 4 | Cell C (Pty) Ltd | 4,927,488 | 0 | 1 | 37 |
| 5 | Vodacom | 2,989,568 | 1.59 x 233 | 2 | 317 |
| 6 | TENET (The UNINET Project) | 2,140,160 | 232 | 2 | 391 |
| 7 | Liquid Telecommunications South Africa (Pty) Ltd | 1,511,936 | 232 | 1 | 119 |
| 8 | Vox Telecom Ltd | 631,296 | 1.02 x 235 | 1 | 615 |
| 9 | RAIN GROUP HOLDINGS (PTY) LTD | 610,816 | 241 | 4 | 66 |
| 10 | AFRIHOST SP (PTY) LTD | 478,208 | 1.19 x 236 | 1 | 23 |
| 11 | Cybersmart | 462,592 | 236 | 1 | 130 |
| 12 | SITA Pty LTD | 268,032 | 0 | 1 | 22 |
| 13 | University of the Free State | 264,192 | 1.25 x 218 | 1 | 13 |
| 14 | HERO TELECOMS (PTY) LTD | 228,096 | 1.07 x 235 | 1 | 228 |
| 15 | Xneelo (Pty) Ltd | 214,784 | 231 | 1 | 49 |
| 16 | Level 7 Wireless (Pty) Ltd | 205,568 | 0 | 1 | 278 |
| 17 | Metrofibre Networx | 201,472 | 232 | 1 | 46 |
| 18 | North West University | 200,704 | 217 | 1 | 51 |
| 19 | Africa on Cloud | 198,784 | 233 | 1 | 336 |
| 20 | Eskom Holdings SOC Ltd | 186,880 | 0 | 1 | 221 |