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

AS9924 — TFN-TW

Taiwan Fixed Network Telco and Network Service Provider

AS9924 is a major transit provider registered to Taiwan Fixed Network Telco and Network Service Provider, registered in Taiwan. The network announces an impressive 1.9 million IPv4 addresses, including a /14. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #5 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
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
556 / 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
🇹🇼 TW (62 IPs), 🇺🇸 US (2 IPs), 🇩🇪 DE (1 IPs), 🇦🇺 AU
Prefix Changed
March 04, 2026

Reputation

Reputation
Good — 5 flagged IPs out of 1 900 288 total (0.00%)

Connectivity Summary

Upstream Providers
10 upstream autonomous systems providing transit
Peers
55 autonomous systems exchanging traffic without transit fees
Downstream Customers
54 downstream autonomous systems buying transit
Degree
122 unique BGP neighbors (providers + customers + peers)
Reach
9 856 — customer cone size measuring network influence
Degree Rank
#1 223
Reach Rank
#448
Country Rank
#5

Upstream Providers (10)

Prefix Lists

IPv4 Prefixes (556 total)

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

IPv6 Prefixes (10 total)

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