List of the top 20 organizations with the largest IP allocations in Macao
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Companhia de Telecomunicacoes de Macau | 748,544 | 1.09 x 232 | 1 | 90 | |
| University of Macau | 65,536 | 224 | 1 | 3 | |
| MTel telecommunication company ltd. | 43,520 | 229 | 1 | 59 | |
| 4 | Net Solutions - Consultoria Em Tecnologias De Informacao, Sociedade Unipessoal | 8,960 | 233 | 1 | 37 |
| 5 | CHINA TELECOM(MACAU) COMPANY LIMITED | 6,656 | 225 | 1 | 49 |
| 6 | Centro de Informacoes Tecnologia de Macau | 4,096 | 0 | 1 | 10 |
| 7 | MACAU COMMUNICATION NETWORKS COMPANY LIMITED | 3,584 | 232 | 1 | 8 |
| 8 | Macau University of Science and Technology | 1,536 | 232 | 1 | 4 |
| 9 | Caldawin Software Technology Company Limited | 1,024 | 232 | 1 | 4 |
| 10 | U FAI CHAN | 256 | 0 | 1 | 1 |
| 11 | Wind Cloud Network Technology Co Ltd | 0 | 224 | 1 | 16 |