| Rank | AS number | Organization | IPv4 addresses |
|---|---|---|---|
| 1 | AS3462 | Data Communication Business Group | 12,223,743 |
| 2 | AS1659 | Taiwan Academic Network (TANet) Information Center | 5,494,784 |
| 3 | AS9674 | Far EastTone Telecommunication Co., Ltd. | 1,832,960 |
| 4 | AS17421 | Mobile Business Group | 1,655,808 |
| 5 | AS4780 | Digital United Inc. | 1,611,520 |
| 6 | AS9924 | Taiwan Fixed Network, Telco and Network Service Provider. | 1,512,704 |
| 7 | AS9416 | Hoshin Multimedia Center Inc. | 1,220,863 |
| 8 | AS17709 | Asia Pacific Telecom | 615,936 |
| 9 | AS38841 | kbro CO. Ltd. | 596,224 |
| 10 | AS24158 | Taiwan Mobile Co., Ltd. | 541,184 |
| 11 | AS7482 | Asia Pacific On-line Service Inc. | 527,360 |
| 12 | AS9919 | New Century InfoComm Tech Co., Ltd. | 505,600 |
| 13 | AS4782 | Data Communication Business Group | 414,208 |
| 14 | AS131596 | TBC | 354,047 |
| 15 | AS18049 | Taiwan Infrastructure Network Technologie | 326,400 |
| 16 | AS18182 | Sony Network Taiwan Limited | 320,256 |
| 17 | AS9676 | SaveCom Internation Inc. | 251,904 |
| 18 | AS24164 | UNION BROADBAND NETWORK | 249,088 |
| 19 | AS17809 | VEE TIME CORP. | 180,224 |
| 20 | AS18046 | DongFong Technology Co. Ltd. | 156,160 |
| 21 | AS131627 | Peicity Digital Cable Television., LTD | 134,912 |
| 22 | AS131591 | Ambit Microsystem Corporation | 127,488 |
| 23 | AS18042 | Koos Broadband Telecom | 123,136 |
| 24 | AS18419 | DaDa Broadband LTD. | 116,736 |
| 25 | AS24154 | Asia Pacific Broadband Fixed Lines Co., Ltd. | 98,816 |
| 26 | AS9916 | National Yang Ming Chiao Tung University | 93,696 |
This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com.