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 | 41,620,736 | 1.23 x 235 | 4 | 1,851 | |
| Telemar Norte Leste S.A. | 22,193,152 | 236 | 1 | 620 | |
| TIM S/A | 18,924,032 | 1.51 x 233 | 1 | 1,066 | |
| 4 | CLARO S.A. | 16,527,361 | 1.54 x 232 | 2 | 4,134 |
| 5 | Brasil Telecom S/A - Filial Distrito Federal | 9,510,912 | 236 | 1 | 341 |
| 6 | TELEFÔNICA BRASIL S.A | 3,151,104 | 1.82 x 233 | 3 | 259 |
| 7 | Claro S/A | 2,109,101 | 1.33 x 234 | 2 | 686 |
| 8 | ALGAR TELECOM S/A | 1,139,968 | 1.25 x 234 | 2 | 65 |
| 9 | Associa��o Rede Nacional de Ensino e Pesquisa | 1,116,928 | 1.32 x 228 | 1 | 248 |
| 10 | NEXTEL TELECOMUNICA��ES LTDA | 1,060,096 | 1.03 x 234 | 1 | 48 |
| 11 | Rede Brasileira de Comunicacao S/A | 795,904 | 1.5 x 233 | 1 | 847 |
| 12 | Locaweb ServiÔos de Internet S/A | 626,432 | 232 | 1 | 474 |
| 13 | Vero Internet | 572,672 | 1.54 x 235 | 13 | 800 |
| 14 | TIM S.A. | 540,672 | 0 | 1 | 12 |
| 15 | Universo Online S.A. | 525,568 | 1.63 x 219 | 3 | 138 |
| 16 | UOL DIVEO S.A. | 492,800 | 1.06 x 229 | 4 | 186 |
| 17 | 467,201 | 1.81 x 236 | 237 | 793 | |
| 18 | Sercomtel ParticipaÔÔes S.A. | 457,216 | 1.05 x 232 | 1 | 101 |
| 19 | FundaÔÔo Carlos Chagas Filho de Amparo a Pesquisa | 418,560 | 232 | 1 | 61 |
| 20 | AMERICAN TOWER DO BRASIL-COMUNICAÔÔO MULTIMÔDIA LT | 403,760 | 1.5 x 232 | 1 | 43 |