subnet.im

AS9924Taiwan Fixed Network, Telco and Network Service Provider.

TaiwanRegistryAPNICTypeCarrier

As of 26th September 2026, AS9924 (Taiwan Fixed Network, Telco and Network…), a transit carrier registered in Taiwan with APNIC, originates 629 IPv4 prefixes covering 4.3M addresses and 32 IPv6 prefixes. By IPv4 address space that makes it the 152nd-largest of the 79,516 networks we see originating IPv4, and the 4th-largest of 234 in Taiwan. It is seen behind 34 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS9002 (RETN Limited), and in front of 49 downstream networks. 99% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 84% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

629

IPv6 prefixes

32

IPv4 addresses

4.3M

IPv6 /64s

159B

Upstream graph

The networks AS9924 is seen behind, one and two hops out, drawn from real AS paths.

AS9924Toward the internet core
Upstream graph for AS9924: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9924Taiwan Fixed Netw…This networkAS2914NTT America, Inc.AS3491PCCW Global (HK) …AS6939Hurricane Electri…AS9002RETN LimitedAS9505Taiwan Internet G…AS3130RGnet OUAS49544i3D.net B.VAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS6453TATA Communicatio…AS51907Kanton ZugAS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS9924 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

223

adjacent networks

Upstreams
3415%
Peers
14063%
Downstreams
4922%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS9924
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer104,514144
AS9002RETN LimitedGBPeer35,896134
AS2914NTT America, Inc.USPeer21,148106
AS9505Taiwan Internet GatewayTWPeer12,40992
AS6939Hurricane Electric LLCUSPeer7,20018
AS15412Flag Telecom UK LimitedGBPeer4,74174
AS174Cogent Communications, LLCUSPeer4,63219
AS3356Lumen (Level 3)USPeer3,84763
AS49544i3D.net B.VNLPeer2,5073
AS4635HKIX Route ServersHKPeer2,1626

Prefixes

All 661

The largest blocks AS9924 originates, widest first.

Largest prefixes originated by AS9924
PrefixAddressesVisibility
49.216.0.0/14262k81/81
124.8.0.0/14262k81/81
175.96.0.0/14262k81/81
49.214.0.0/15131k81/81
219.80.0.0/15131k81/81
219.86.0.0/15131k81/81
49.214.0.0/1665.5k81/81
49.215.0.0/1665.5k81/81
49.216.0.0/1665.5k81/81
49.217.0.0/1665.5k81/81

Routing health

How AS9924's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid98.6%652
  • Invalid0.2%1
  • No ROA1.2%8

Propagation

  • Globally propagated90% of full-feed peers or more84.4%558
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%15.6%103

Prefix sizes

IPv4 — 629 prefixes

IPv6 — 32 prefixes

  • /27137B × /643.1%1
  • /324.3B × /6415.6%5
  • /36268M × /643.1%1
  • /4865.5k × /6412.5%4
  • /49 and longerAggregated65.6%21

Recent changes

Announcements that started or stopped since 28th Aug 2026.

21 announced and 3 withdrawn in all; the most recent are shown.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.