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. | 16,429,312 | 1.86 x 238 | 3 | 365 | |
| Taiwan Academic Network (TANet) Information Center | 7,166,464 | 232 | 1 | 311 | |
| Digital United Inc. | 5,163,520 | 1.02 x 238 | 1 | 1,584 | |
| 4 | Taiwan Fixed Network, Telco and Network Service Provider. | 4,370,224 | 1.13 x 237 | 1 | 750 |
| 5 | New Century InfoComm Tech Co., Ltd. | 3,274,752 | 1.01 x 239 | 2 | 949 |
| 6 | Hoshin Multimedia Center Inc. | 2,811,395 | 232 | 1 | 83 |
| 7 | Far EastTone Telecommunication Co., Ltd. | 2,298,112 | 1.52 x 232 | 2 | 134 |
| 8 | kbro CO. Ltd. | 1,697,536 | 1.75 x 232 | 1 | 541 |
| 9 | Mobile Business Group | 1,689,600 | 241 | 1 | 225 |
| 10 | Asia Pacific On-line Service Inc. | 1,295,360 | 229 | 2 | 94 |
| 11 | Asia Pacific Telecom | 1,148,672 | 1.03 x 238 | 1 | 76 |
| 12 | UNION BROADBAND NETWORK | 1,093,888 | 1.5 x 230 | 3 | 383 |
| 13 | SaveCom Internation Inc. | 952,832 | 1.5 x 232 | 1 | 304 |
| 14 | TBC | 952,576 | 1.83 x 224 | 1 | 777 |
| 15 | Sony Network Taiwan Limited | 913,408 | 236 | 1 | 86 |
| 16 | Ambit Microsystem Corporation | 895,488 | 1.03 x 228 | 1 | 291 |
| 17 | Taiwan Infrastructure Network Technologie | 664,576 | 232 | 1 | 242 |
| 18 | VEE TIME CORP. | 559,616 | 1.94 x 232 | 1 | 133 |
| 19 | Taiwan Mobile Co., Ltd. | 543,232 | 1.49 x 226 | 1 | 1,050 |
| 20 | National Taiwan University | 469,504 | 0 | 1 | 102 |