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 | 6,759,680 | 1.5 x 233 | 2 | 332 | |
| Dimension Data | 6,497,536 | 1.09 x 237 | 3 | 1,924 | |
| Telkom SA Ltd. | 5,532,928 | 1.01 x 244 | 5 | 2,377 | |
| 4 | Cell C (Pty) Ltd | 4,927,488 | 0 | 1 | 37 |
| 5 | Vodacom | 3,049,984 | 1.59 x 233 | 2 | 315 |
| 6 | TENET (The UNINET Project) | 2,139,904 | 232 | 2 | 390 |
| 7 | Liquid Telecommunications South Africa (Pty) Ltd | 1,512,448 | 232 | 1 | 115 |
| 8 | RAIN GROUP HOLDINGS (PTY) LTD | 637,184 | 241 | 4 | 82 |
| 9 | Vox Telecom Ltd | 631,808 | 1.02 x 235 | 1 | 600 |
| 10 | AFRIHOST SP (PTY) LTD | 478,208 | 1.19 x 236 | 1 | 23 |
| 11 | Cybersmart | 394,752 | 236 | 1 | 83 |
| 12 | Africa on Cloud | 276,224 | 233 | 1 | 642 |
| 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 | 232,960 | 1.01 x 235 | 1 | 221 |
| 16 | Xneelo (Pty) Ltd | 214,528 | 231 | 1 | 48 |
| 17 | Level 7 Wireless (Pty) Ltd | 202,752 | 0 | 1 | 276 |
| 18 | Metrofibre Networx | 200,192 | 232 | 1 | 42 |
| 19 | North West University | 194,560 | 217 | 1 | 47 |
| 20 | Eskom Holdings SOC Ltd | 186,880 | 0 | 1 | 221 |