Autonomous System

AS9924 Taiwan Fixed Network CO.,LTD.

ISPActiveTaiwanAPNIC

AS9924 (TFN-TW) is an ISP network operated by Taiwan Fixed Network CO.,LTD. in Taiwan, registered with APNIC. It has 548 IPv4 prefixes with 4,313,600 addresses and 10 IPv6 prefixes, which makes it the 148th largest of 82,141 active autonomous systems by IPv4 space.

IPv4 addresses4,313,600in 548 prefixes
IPv6 prefixes10≈ 2.9 × 10³⁰ addresses
Size rank#148of 82,141 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationTaiwan Fixed Network CO.,LTD.
AS nameTFN-TW
Websitetfn.net.tw
Country Taiwan (TW)
Network typeISP
RegistryAPNIC
Abuse contactnickchang@taiwanmobile.com
Registered—
Last updated2025-11-06

IPv4 prefixes

548 prefixes · 4,313,600 addresses
NetworkAddressesFirst – last address
49.216.0.0/14262,14449.216.0.0 – 49.219.255.255
124.8.0.0/14262,144124.8.0.0 – 124.11.255.255
175.96.0.0/14262,144175.96.0.0 – 175.99.255.255
49.214.0.0/15131,07249.214.0.0 – 49.215.255.255
219.80.0.0/15131,072219.80.0.0 – 219.81.255.255
219.86.0.0/15131,072219.86.0.0 – 219.87.255.255
49.214.0.0/1665,53649.214.0.0 – 49.214.255.255
49.215.0.0/1665,53649.215.0.0 – 49.215.255.255
49.216.0.0/1665,53649.216.0.0 – 49.216.255.255
49.217.0.0/1665,53649.217.0.0 – 49.217.255.255
49.218.0.0/1665,53649.218.0.0 – 49.218.255.255
49.219.0.0/1665,53649.219.0.0 – 49.219.255.255
60.198.0.0/1665,53660.198.0.0 – 60.198.255.255
60.199.0.0/1665,53660.199.0.0 – 60.199.255.255
61.30.0.0/1665,53661.30.0.0 – 61.30.255.255
61.31.0.0/1665,53661.31.0.0 – 61.31.255.255
124.8.0.0/1665,536124.8.0.0 – 124.8.255.255
124.9.0.0/1665,536124.9.0.0 – 124.9.255.255
124.10.0.0/1665,536124.10.0.0 – 124.10.255.255
124.11.0.0/1665,536124.11.0.0 – 124.11.255.255
124.12.0.0/1665,536124.12.0.0 – 124.12.255.255
175.96.0.0/1665,536175.96.0.0 – 175.96.255.255
175.97.0.0/1665,536175.97.0.0 – 175.97.255.255
175.98.0.0/1665,536175.98.0.0 – 175.98.255.255
175.99.0.0/1665,536175.99.0.0 – 175.99.255.255
The 25 largest of 548. The API and the database have all of them.

IPv6 prefixes

10 prefixes
  • 2001:4540::/27
  • 2001:c50::/32
  • 2001:454c::/32
  • 2001:454e::/32
  • 2403:82c0::/32
  • 2001:4541:9000::/36
  • 2001:4546:1001::/48
  • 2001:4546:1002::/48
  • 2001:454e:aab0::/48
  • 2001:454e:c010::/48

Query AS9924 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=AS9924&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS9924, with or without a key:

curl "https://api.ipapi.is/?q=49.216.0.1"

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