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 | 6,699,264 | 1.5 x 233 | 2 | 297 | |
| Dimension Data | 6,365,952 | 1.03 x 237 | 3 | 1,419 | |
| Telkom SA Ltd. | 5,547,776 | 1.01 x 244 | 5 | 2,365 | |
| 4 | Cell C (Pty) Ltd | 4,927,744 | 0 | 1 | 38 |
| 5 | Vodacom | 3,042,304 | 1.59 x 233 | 2 | 310 |
| 6 | TENET (The UNINET Project) | 2,140,416 | 232 | 2 | 391 |
| 7 | Liquid Telecommunications South Africa (Pty) Ltd | 1,512,192 | 232 | 1 | 118 |
| 8 | RAIN GROUP HOLDINGS (PTY) LTD | 633,088 | 241 | 3 | 81 |
| 9 | Vox Telecom Ltd | 605,440 | 1.02 x 235 | 1 | 557 |
| 10 | AFRIHOST SP (PTY) LTD | 478,464 | 1.19 x 236 | 1 | 24 |
| 11 | Cybersmart | 459,008 | 236 | 1 | 117 |
| 12 | SITA Pty LTD | 268,544 | 0 | 1 | 24 |
| 13 | University of the Free State | 264,192 | 1.25 x 218 | 1 | 13 |
| 14 | HERO TELECOMS (PTY) LTD | 228,352 | 1.01 x 235 | 1 | 208 |
| 15 | Xneelo (Pty) Ltd | 218,880 | 231 | 1 | 61 |
| 16 | Level 7 Wireless (Pty) Ltd | 201,728 | 0 | 1 | 272 |
| 17 | Metrofibre Networx | 200,192 | 232 | 1 | 41 |
| 18 | North West University | 195,584 | 217 | 1 | 48 |
| 19 | Eskom Holdings SOC Ltd | 186,880 | 0 | 1 | 221 |
| 20 | RSAWEB (PTY) LTD | 178,176 | 236 | 1 | 126 |