$ query “AS9924” --type=asn → 1 result(s)

AS9924 · TFN-TW

Taiwan Fixed Network Telco and Network Service Provider

AS9924 is operated by Taiwan Fixed Network Telco and Network Service Provider and serves as a major transit provider, registered in Taiwan. The system announces an impressive 1.9 million IPv4 addresses, including a /14, and supports IPv6. The bulk of its IP address space is in Taiwan, with additional presence in the United States and Germany, and a smaller footprint in another country.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #6 in Taiwan — Top 10 by reach within country

Basic Information

Country
🇹🇼 Taiwan
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
626 / 47
IPv6 Prefixes (raw / aggregated)
10 / 3
IPv4 Addresses
1 900 288
Largest IPv4 Prefix
/14 (262 144 addresses)
Largest IPv6 Prefix
/27
Geolocated Countries
🇹🇼 Taiwan (3 517 440 IPs), 🇺🇸 United States (1 280 IPs), 🇩🇪 Germany (1 024 IPs) and 1 more
Prefix Changed
April 10, 2026

Reputation

Reputation
Good — 3 flagged IPs out of 1 900 288 total (0.00%)

Connectivity Summary

Upstream Providers
10 upstreams providing transit
Peers
57 networks exchanging traffic without transit
Downstream Customers
54 downstreams buying transit
Unclassified
3 unclassified BGP neighbors
Degree
124 unique BGP neighbors
Reach
4 480 networks in customer cone

Upstream Providers (10)

Prefix Lists

IPv4 Prefixes (626 total)

  • 175.96.0.0/14 (262 144 addresses (/14 prefix))
  • 124.8.0.0/14 (262 144 addresses (/14 prefix))
  • 49.216.0.0/14 (262 144 addresses (/14 prefix))
  • 61.30.0.0/15 (131 072 addresses (/15 prefix))
  • 219.86.0.0/15 (131 072 addresses (/15 prefix))
  • 219.80.0.0/15 (131 072 addresses (/15 prefix))
  • 49.214.0.0/15 (131 072 addresses (/15 prefix))
  • 60.198.0.0/15 (131 072 addresses (/15 prefix))
  • 124.12.0.0/16 (65 536 addresses (/16 prefix))
  • 202.132.0.0/16 (65 536 addresses (/16 prefix))
  • 210.192.128.0/17 (32 768 addresses (/17 prefix))
  • 210.17.0.0/17 (32 768 addresses (/17 prefix))
  • 202.145.128.0/17 (32 768 addresses (/17 prefix))
  • 210.192.0.0/18 (16 384 addresses (/18 prefix))
  • 210.63.128.0/18 (16 384 addresses (/18 prefix))
  • 210.62.0.0/18 (16 384 addresses (/18 prefix))
  • 210.208.192.0/18 (16 384 addresses (/18 prefix))
  • 202.145.64.0/18 (16 384 addresses (/18 prefix))
  • 124.108.128.0/18 (16 384 addresses (/18 prefix))
  • 210.243.64.0/18 (16 384 addresses (/18 prefix))
  • 210.62.192.0/19 (8 192 addresses (/19 prefix))
  • 211.79.0.0/19 (8 192 addresses (/19 prefix))
  • 210.67.160.0/19 (8 192 addresses (/19 prefix))
  • 203.65.160.0/19 (8 192 addresses (/19 prefix))
  • 203.65.192.0/19 (8 192 addresses (/19 prefix))
  • 210.208.96.0/19 (8 192 addresses (/19 prefix))
  • 61.57.0.0/19 (8 192 addresses (/19 prefix))
  • 202.145.32.0/19 (8 192 addresses (/19 prefix))
  • 210.67.192.0/19 (8 192 addresses (/19 prefix))
  • 203.105.224.0/19 (8 192 addresses (/19 prefix))
  • 203.211.0.0/19 (8 192 addresses (/19 prefix))
  • 61.60.240.0/20 (4 096 addresses (/20 prefix))
  • 211.78.208.0/20 (4 096 addresses (/20 prefix))
  • 210.67.144.0/20 (4 096 addresses (/20 prefix))
  • 180.92.0.0/20 (4 096 addresses (/20 prefix))
  • 23.202.124.0/22 (1 024 addresses (/22 prefix))
  • 103.123.188.0/22 (1 024 addresses (/22 prefix))
  • 103.129.176.0/22 (1 024 addresses (/22 prefix))
  • 103.224.132.0/22 (1 024 addresses (/22 prefix))
  • 43.240.24.0/22 (1 024 addresses (/22 prefix))
  • 2.21.16.0/22 (1 024 addresses (/22 prefix))
  • 2.18.16.0/23 (512 addresses (/23 prefix))
  • 23.212.60.0/24 (256 addresses (/24 prefix))
  • 203.77.70.0/24 (256 addresses (/24 prefix))
  • 203.77.37.0/24 (256 addresses (/24 prefix))
  • 203.65.232.0/24 (256 addresses (/24 prefix))
  • 203.65.231.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (10 total)

  • 2001:4540::/27
  • 2001:c50::/32
  • 2403:82c0::/32