List of the top 20 organizations with the largest IP allocations in Taiwan
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Chunghwa Telecom Co., Ltd. | 16,430,080 | 1.86 x 238 | 3 | 364 | |
| Taiwan Academic Network (TANet) Information Center | 7,070,208 | 232 | 1 | 270 | |
| Digital United Inc. | 5,045,248 | 1.02 x 238 | 1 | 1,117 | |
| 4 | Taiwan Fixed Network, Telco and Network Service Provider. | 4,353,280 | 1.16 x 237 | 1 | 722 |
| 5 | New Century InfoComm Tech Co., Ltd. | 3,358,720 | 1.01 x 239 | 2 | 1,002 |
| 6 | Far EastTone Telecommunication Co., Ltd. | 2,236,416 | 1.52 x 232 | 2 | 124 |
| 7 | Hoshin Multimedia Center Inc. | 1,747,200 | 232 | 1 | 56 |
| 8 | kbro CO. Ltd. | 1,684,096 | 1.75 x 232 | 1 | 538 |
| 9 | Mobile Business Group | 1,667,840 | 241 | 1 | 209 |
| 10 | Asia Pacific On-line Service Inc. | 1,295,360 | 229 | 2 | 94 |
| 11 | Asia Pacific Telecom | 1,149,184 | 1.03 x 238 | 1 | 74 |
| 12 | UNION BROADBAND NETWORK | 1,112,064 | 1.5 x 230 | 3 | 404 |
| 13 | SaveCom Internation Inc. | 945,408 | 1.5 x 232 | 1 | 303 |
| 14 | TBC | 935,680 | 1.88 x 224 | 1 | 875 |
| 15 | Sony Network Taiwan Limited | 913,152 | 236 | 1 | 85 |
| 16 | Ambit Microsystem Corporation | 901,120 | 1.03 x 228 | 1 | 303 |
| 17 | Taiwan Infrastructure Network Technologie | 659,968 | 232 | 1 | 237 |
| 18 | Taiwan Mobile Co., Ltd. | 539,136 | 1.49 x 226 | 1 | 1,048 |
| 19 | VEE TIME CORP. | 439,296 | 1.94 x 232 | 1 | 100 |
| 20 | Data Communication Business Group | 430,592 | 233 | 1 | 18 |