subnet.im

AS9924Taiwan Fixed Network, Telco and Network Service Provider.

TaiwanRegistryAPNICTypeCarrier

As of 11th November 2026, AS9924 (Taiwan Fixed Network, Telco and Network…), a transit carrier registered in Taiwan with APNIC, originates 696 IPv4 prefixes covering 4.4M addresses and 32 IPv6 prefixes. By IPv4 address space that makes it the 152nd-largest of the 80,747 networks we see originating IPv4, and the 4th-largest of 241 in Taiwan. It is seen behind 35 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS9002 (RETN Limited), and in front of 58 downstream networks. 99% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 77% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

696

IPv6 prefixes

32

IPv4 addresses

4.4M

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…AS49544i3D.net B.VAS215859Hetzner Cloud - S…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS6667Elisa OyjAS3356Lumen (Level 3)AS1299Arelion (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

231

adjacent networks

Upstreams
3515%
Peers
13860%
Downstreams
5825%

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

Upstreams of AS9924
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer103,649137
AS9002RETN LimitedGBPeer33,334125
AS2914NTT America, Inc.USPeer16,742103
AS9505Taiwan Internet GatewayTWPeer10,26886
AS6939Hurricane Electric LLCUSPeer8,80616
AS15412Flag Telecom UK LimitedGBPeer5,03269
AS174Cogent Communications, LLCUSPeer2,73417
AS49544i3D.net B.VNLPeer2,5022
AS4635HKIX Route ServersHKPeer2,1076
AS35280F5 Networks SARLFRPeer2,0164

Prefixes

All 728

The largest blocks AS9924 originates, widest first.

Largest prefixes originated by AS9924
PrefixAddressesVisibility
49.216.0.0/14262k76/76
124.8.0.0/14262k76/76
175.96.0.0/14262k76/76
49.214.0.0/15131k76/76
219.80.0.0/15131k76/76
219.86.0.0/15131k76/76
49.214.0.0/1665.5k76/76
49.215.0.0/1665.5k76/76
49.216.0.0/1665.5k76/76
49.217.0.0/1665.5k76/76

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%718
  • Invalid0.3%2
  • No ROA1.1%8

Propagation

  • Globally propagated90% of full-feed peers or more76.6%558
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%23.4%170

Prefix sizes

IPv4 — 696 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 12th Oct 2026.

91 announced and 24 withdrawn in all; the most recent are shown.

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