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. | 16,429,056 | 1.86 x 238 | 3 | 363 | |
| Taiwan Academic Network (TANet) Information Center | 7,164,416 | 232 | 1 | 310 | |
| Digital United Inc. | 5,065,984 | 1.02 x 238 | 1 | 1,183 | |
| 4 | Taiwan Fixed Network, Telco and Network Service Provider. | 4,351,024 | 1.13 x 237 | 1 | 751 |
| 5 | New Century InfoComm Tech Co., Ltd. | 3,321,856 | 1.01 x 239 | 2 | 977 |
| 6 | Hoshin Multimedia Center Inc. | 2,811,392 | 232 | 1 | 80 |
| 7 | Far EastTone Telecommunication Co., Ltd. | 2,260,480 | 1.52 x 232 | 2 | 122 |
| 8 | Mobile Business Group | 1,689,088 | 241 | 1 | 223 |
| 9 | kbro CO. Ltd. | 1,687,936 | 1.75 x 232 | 1 | 535 |
| 10 | Asia Pacific On-line Service Inc. | 1,295,360 | 229 | 2 | 94 |
| 11 | Asia Pacific Telecom | 1,148,416 | 1.03 x 238 | 1 | 75 |
| 12 | UNION BROADBAND NETWORK | 1,101,824 | 1.5 x 230 | 3 | 394 |
| 13 | TBC | 1,073,152 | 1.89 x 224 | 1 | 1,488 |
| 14 | SaveCom Internation Inc. | 952,576 | 1.5 x 232 | 1 | 303 |
| 15 | Sony Network Taiwan Limited | 913,152 | 236 | 1 | 85 |
| 16 | Ambit Microsystem Corporation | 900,096 | 1.03 x 228 | 1 | 300 |
| 17 | Taiwan Infrastructure Network Technologie | 662,528 | 232 | 1 | 238 |
| 18 | VEE TIME CORP. | 559,616 | 1.94 x 232 | 1 | 133 |
| 19 | Taiwan Mobile Co., Ltd. | 541,184 | 1.49 x 226 | 1 | 1,048 |
| 20 | National Taiwan University | 469,504 | 0 | 1 | 102 |