List of the top 20 organizations with the largest IP allocations in South Africa
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Dimension Data | 6,931,200 | 1.53 x 238 | 4 | 998 | |
| MTN SA | 6,280,728 | 1.5 x 233 | 2 | 194 | |
| Cell C (Pty) Ltd | 4,928,256 | 0 | 1 | 39 | |
| 4 | Telkom SA Ltd. | 4,650,752 | 1.01 x 244 | 5 | 1,777 |
| 5 | Vodacom | 2,911,488 | 1.59 x 233 | 2 | 265 |
| 6 | TENET (The UNINET Project) | 2,145,024 | 232 | 2 | 397 |
| 7 | Liquid Telecommunications South Africa (Pty) Ltd | 1,526,784 | 232 | 1 | 64 |
| 8 | SITA Pty LTD | 531,200 | 0 | 1 | 27 |
| 9 | RAIN GROUP HOLDINGS (PTY) LTD | 518,144 | 241 | 3 | 60 |
| 10 | Afrihost (Pty) Ltd | 441,600 | 1.19 x 236 | 1 | 19 |
| 11 | Vox Telecom Ltd | 424,704 | 1.13 x 235 | 1 | 242 |
| 12 | Cybersmart | 353,024 | 236 | 1 | 20 |
| 13 | HERO TELECOMS (PTY) LTD | 283,904 | 1.01 x 235 | 1 | 220 |
| 14 | University of the Free State | 264,192 | 1.25 x 218 | 1 | 13 |
| 15 | Xneelo (Pty) Ltd | 218,112 | 231 | 1 | 58 |
| 16 | RSAWEB (PTY) LTD | 213,248 | 236 | 1 | 158 |
| 17 | Metrofibre Networx | 198,656 | 1.08 x 224 | 1 | 38 |
| 18 | Africa on Cloud | 197,136 | 233 | 1 | 57 |
| 19 | North West University | 195,584 | 217 | 1 | 48 |
| 20 | Eskom Holdings SOC Ltd | 186,880 | 0 | 1 | 221 |