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 | 6,847,744 | 1.5 x 233 | 2 | 349 | |
| Dimension Data | 6,426,624 | 1.03 x 237 | 3 | 1,629 | |
| Telkom SA Ltd. | 5,458,688 | 1.01 x 244 | 5 | 2,179 | |
| 4 | Cell C (Pty) Ltd | 4,927,488 | 0 | 1 | 37 |
| 5 | Vodacom | 3,050,752 | 1.59 x 233 | 2 | 317 |
| 6 | TENET (The UNINET Project) | 2,140,416 | 232 | 2 | 392 |
| 7 | Liquid Telecommunications South Africa (Pty) Ltd | 1,512,448 | 232 | 1 | 119 |
| 8 | Vox Telecom Ltd | 631,808 | 1.02 x 235 | 1 | 603 |
| 9 | RAIN GROUP HOLDINGS (PTY) LTD | 616,960 | 241 | 4 | 66 |
| 10 | AFRIHOST SP (PTY) LTD | 478,208 | 1.19 x 236 | 1 | 23 |
| 11 | Cybersmart | 394,240 | 236 | 1 | 81 |
| 12 | Africa on Cloud | 284,928 | 233 | 1 | 684 |
| 13 | SITA Pty LTD | 268,032 | 0 | 1 | 22 |
| 14 | University of the Free State | 264,192 | 1.25 x 218 | 1 | 13 |
| 15 | HERO TELECOMS (PTY) LTD | 228,864 | 1.01 x 235 | 1 | 222 |
| 16 | Xneelo (Pty) Ltd | 214,528 | 231 | 1 | 48 |
| 17 | Level 7 Wireless (Pty) Ltd | 201,984 | 0 | 1 | 273 |
| 18 | Metrofibre Networx | 200,960 | 232 | 1 | 45 |
| 19 | North West University | 200,704 | 217 | 1 | 51 |
| 20 | Eskom Holdings SOC Ltd | 186,880 | 0 | 1 | 221 |