Autonomous System
AS18046 DongFong Technology Co. Ltd.
BusinessActiveTaiwanAPNIC
AS18046 (DONGFONG-TW) is a business network operated by DongFong Technology Co. Ltd. in Taiwan, registered with APNIC. It has 91 IPv4 prefixes with 201,984 addresses and 1 IPv6 prefix, which makes it the 1,276th largest of 82,283 active autonomous systems by IPv4 space.
IPv4 addresses201,984in 91 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,276of 82,283 active ASNs
Details
OrganizationDongFong Technology Co. Ltd.
AS nameDONGFONG-TW
Websitedongfong.com.tw
Country Taiwan (TW)
Network typeBusiness
RegistryAPNIC
Abuse contactix@dongfong.com.tw
Registered—
Last updated2025-11-06
IPv4 prefixes
91 prefixes · 201,984 addresses| Network | Addresses | First – last address |
|---|---|---|
| 87.80.0.0/16 | 65,536 | 87.80.0.0 – 87.80.255.255 |
| 78.105.0.0/18 | 16,384 | 78.105.0.0 – 78.105.63.255 |
| 78.105.64.0/19 | 8,192 | 78.105.64.0 – 78.105.95.255 |
| 119.15.224.0/19 | 8,192 | 119.15.224.0 – 119.15.255.255 |
| 159.117.64.0/19 | 8,192 | 159.117.64.0 – 159.117.95.255 |
| 61.65.208.0/20 | 4,096 | 61.65.208.0 – 61.65.223.255 |
| 61.67.32.0/20 | 4,096 | 61.67.32.0 – 61.67.47.255 |
| 82.41.128.0/20 | 4,096 | 82.41.128.0 – 82.41.143.255 |
| 101.3.192.0/20 | 4,096 | 101.3.192.0 – 101.3.207.255 |
| 116.50.32.0/20 | 4,096 | 116.50.32.0 – 116.50.47.255 |
| 121.50.176.0/20 | 4,096 | 121.50.176.0 – 121.50.191.255 |
| 150.116.16.0/20 | 4,096 | 150.116.16.0 – 150.116.31.255 |
| 159.117.64.0/20 | 4,096 | 159.117.64.0 – 159.117.79.255 |
| 159.117.80.0/20 | 4,096 | 159.117.80.0 – 159.117.95.255 |
| 187.79.224.0/20 | 4,096 | 187.79.224.0 – 187.79.239.255 |
| 61.65.232.0/21 | 2,048 | 61.65.232.0 – 61.65.239.255 |
| 116.50.32.0/21 | 2,048 | 116.50.32.0 – 116.50.39.255 |
| 116.50.40.0/21 | 2,048 | 116.50.40.0 – 116.50.47.255 |
| 119.15.208.0/21 | 2,048 | 119.15.208.0 – 119.15.215.255 |
| 119.15.224.0/21 | 2,048 | 119.15.224.0 – 119.15.231.255 |
| 119.15.232.0/21 | 2,048 | 119.15.232.0 – 119.15.239.255 |
| 119.15.240.0/21 | 2,048 | 119.15.240.0 – 119.15.247.255 |
| 119.15.248.0/21 | 2,048 | 119.15.248.0 – 119.15.255.255 |
| 121.50.176.0/21 | 2,048 | 121.50.176.0 – 121.50.183.255 |
| 43.248.16.0/22 | 1,024 | 43.248.16.0 – 43.248.19.255 |
87.80.0.0/16 78.105.0.0/18 78.105.64.0/19 119.15.224.0/19 159.117.64.0/19 61.65.208.0/20 61.67.32.0/20 82.41.128.0/20 101.3.192.0/20 116.50.32.0/20 121.50.176.0/20 150.116.16.0/20 159.117.64.0/20 159.117.80.0/20 187.79.224.0/20 61.65.232.0/21 116.50.32.0/21 116.50.40.0/21 119.15.208.0/21 119.15.224.0/21 119.15.232.0/21 119.15.240.0/21 119.15.248.0/21 121.50.176.0/21 43.248.16.0/22
The 25 largest of 91. The API and the database have all of them.
IPv6 prefixes
1 prefix- 2401:1780::/32
2401:1780::/32
Query AS18046 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS18046&key=YOUR_API_KEY"Any address in its prefixes resolves to AS18046, with or without a key:
curl "https://api.ipapi.is/?q=87.80.0.1"Largest networks in Taiwan
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