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 | 6,488,576 | 1.5 x 233 | 2 | 242 | |
| Dimension Data | 6,219,776 | 1.53 x 238 | 3 | 1,887 | |
| Telkom SA Ltd. | 4,931,328 | 1.01 x 244 | 5 | 1,839 | |
| 4 | Cell C (Pty) Ltd | 4,927,744 | 0 | 1 | 38 |
| 5 | Vodacom | 3,042,048 | 1.59 x 233 | 2 | 314 |
| 6 | TENET (The UNINET Project) | 2,139,904 | 232 | 2 | 387 |
| 7 | Liquid Telecommunications South Africa (Pty) Ltd | 1,512,192 | 232 | 1 | 115 |
| 8 | RAIN GROUP HOLDINGS (PTY) LTD | 588,288 | 241 | 3 | 83 |
| 9 | Vox Telecom Ltd | 532,992 | 235 | 1 | 489 |
| 10 | SITA Pty LTD | 531,200 | 0 | 1 | 27 |
| 11 | Afrihost (Pty) Ltd | 478,464 | 1.19 x 236 | 1 | 24 |
| 12 | Cybersmart | 387,840 | 236 | 1 | 83 |
| 13 | University of the Free State | 264,192 | 1.25 x 218 | 1 | 13 |
| 14 | HERO TELECOMS (PTY) LTD | 253,184 | 1.01 x 235 | 1 | 240 |
| 15 | Xneelo (Pty) Ltd | 219,392 | 231 | 1 | 63 |
| 16 | Africa on Cloud | 216,064 | 233 | 1 | 124 |
| 17 | RSAWEB (PTY) LTD | 214,528 | 236 | 1 | 166 |
| 18 | Metrofibre Networx | 199,680 | 232 | 1 | 39 |
| 19 | North West University | 195,584 | 217 | 1 | 48 |
| 20 | Eskom Holdings SOC Ltd | 186,880 | 0 | 1 | 221 |