List of the top 20 organizations with the largest IP allocations in Brazil
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| TELEF�NICA BRASIL S.A | 32,411,904 | 1.51 x 233 | 4 | 1,233 | |
| Telemar Norte Leste S.A. | 22,193,152 | 236 | 1 | 620 | |
| TIM S/A | 18,862,080 | 1.51 x 233 | 1 | 1,036 | |
| 4 | CLARO S.A. | 16,394,114 | 1.53 x 232 | 2 | 4,009 |
| 5 | TELEFÔNICA BRASIL S.A | 15,447,040 | 1.3 x 235 | 3 | 1,144 |
| 6 | Brasil Telecom S/A - Filial Distrito Federal | 9,510,912 | 236 | 1 | 341 |
| 7 | Claro S/A | 2,147,757 | 1.33 x 234 | 2 | 689 |
| 8 | ALGAR TELECOM S/A | 1,139,968 | 1.5 x 233 | 2 | 63 |
| 9 | AssociaÔÔo Rede Nacional de Ensino e Pesquisa | 1,114,592 | 1.32 x 228 | 1 | 237 |
| 10 | NEXTEL TELECOMUNICA��ES LTDA | 1,060,352 | 1.03 x 234 | 1 | 49 |
| 11 | Rede Brasileira de Comunicacao S/A | 785,152 | 1.5 x 233 | 1 | 809 |
| 12 | Locaweb ServiÔos de Internet S/A | 677,376 | 232 | 1 | 385 |
| 13 | Intelig TelecomunicaÔÔes Ltda. | 540,672 | 0 | 1 | 12 |
| 14 | Universo Online S.A. | 529,664 | 1.75 x 219 | 3 | 140 |
| 15 | UOL DIVEO S.A. | 492,544 | 1.06 x 229 | 4 | 185 |
| 16 | Vero Internet | 489,472 | 1.8 x 235 | 12 | 578 |
| 17 | 465,409 | 1.31 x 237 | 246 | 894 | |
| 18 | Sercomtel Participa��es 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-COMUNICA��O MULTIM�DIA LT | 403,760 | 232 | 1 | 36 |