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AS18049Taiwan Infrastructure Network Technologie

TaiwanRegistryAPNICTypeEyeball

As of 26th September 2026, AS18049 (Taiwan Infrastructure Network…), an access network registered in Taiwan with APNIC, originates 235 IPv4 prefixes covering 663k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 598th-largest of the 79,516 networks we see originating IPv4, and the 16th-largest of 234 in Taiwan. It is seen behind 2 upstream networks, most often AS4780 (Digital United Inc.) and AS9924 (Taiwan Fixed Network, Telco and Network…). Over 99% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

235

IPv6 prefixes

1

IPv4 addresses

663k

IPv6 /64s

4.3B

Upstream graph

The networks AS18049 is seen behind, one and two hops out, drawn from real AS paths.

AS18049Toward the internet core
Upstream graph for AS18049: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18049Taiwan Infrastruc…This networkAS4780Digital United In…AS9924Taiwan Fixed Netw…AS3491PCCW Global (HK) …AS9002RETN Limited

Networks observed one and two hops upstream of AS18049 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS18049
NetworkCountryRelationshipPathsVantage pts
AS4780Digital United Inc.TWPeer18,350144
AS9924Taiwan Fixed Network, Telco and Network Service Provider.TWPeer64781

Prefixes

All 236

The largest blocks AS18049 originates, widest first.

Largest prefixes originated by AS18049
PrefixAddressesVisibility
58.99.0.0/1732.8k81/81
106.107.128.0/1732.8k81/81
123.205.0.0/1732.8k81/81
27.100.64.0/1816.4k81/81
112.105.0.0/1816.4k81/81
116.118.128.0/1816.4k81/81
123.205.0.0/1816.4k81/81
123.205.64.0/1816.4k81/81
175.183.0.0/1816.4k81/81
49.213.128.0/198.2k81/81

Routing health

How AS18049'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

  • Valid99.6%235
  • Invalid0.0%0
  • No ROA0.4%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%236
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 235 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn218.34.128.0/2423rd Sept 2026
  • Withdrawn218.34.129.0/2423rd Sept 2026
  • Withdrawn218.34.130.0/2423rd Sept 2026

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