List of the top 20 organizations with the largest IP allocations in Brazil
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| TELEFÔNICA BRASIL S.A | 47,019,776 | 1.61 x 235 | 7 | 2,255 | |
| Telemar Norte Leste S.A. | 22,193,152 | 236 | 1 | 620 | |
| TIM S/A | 18,941,952 | 1.51 x 233 | 1 | 1,249 | |
| 4 | CLARO S.A. | 16,643,265 | 1.54 x 232 | 2 | 4,180 |
| 5 | Brasil Telecom S/A - Filial Distrito Federal | 9,513,472 | 236 | 1 | 345 |
| 6 | Claro S/A | 2,060,717 | 234 | 2 | 677 |
| 7 | ALGAR TELECOM S/A | 1,145,088 | 1.25 x 234 | 2 | 83 |
| 8 | AssociaÔÔo Rede Nacional de Ensino e Pesquisa | 1,085,312 | 1.32 x 228 | 1 | 248 |
| 9 | NEXTEL TELECOMUNICAÔÔES LTDA | 1,064,704 | 1.03 x 234 | 2 | 51 |
| 10 | Rede Brasileira de Comunicacao S/A | 792,064 | 1.5 x 233 | 1 | 838 |
| 11 | Vero Internet | 611,072 | 1.22 x 236 | 17 | 877 |
| 12 | Locaweb ServiÔos de Internet S/A | 582,400 | 232 | 1 | 489 |
| 13 | TIM S.A. | 540,672 | 0 | 1 | 12 |
| 14 | Universo Online S.A. | 531,712 | 1.75 x 219 | 3 | 148 |
| 15 | UOL DIVEO S.A. | 492,544 | 1.06 x 229 | 4 | 185 |
| 16 | Sercomtel ParticipaÔÔes S.A. | 457,472 | 1.05 x 232 | 1 | 102 |
| 17 | Funda??o Carlos Chagas Filho de Amparo a Pesquisa | 418,560 | 232 | 1 | 61 |
| 18 | AMERICAN TOWER DO BRASIL-COMUNICAÔÔO MULTIMÔDIA LT | 401,664 | 1.5 x 232 | 1 | 40 |
| 19 | Mundivox LTDA | 361,472 | 232 | 1 | 139 |
| 20 | CABO SERVICOS DE TELECOMUNICACOES LTDA | 345,088 | 232 | 1 | 60 |