subnet.im

AS18412Far EastTone Telecommunication Co., Ltd.

TaiwanRegistryAPNIC

As of 11th November 2026, AS18412 (Far EastTone Telecommunication Co., Ltd.), a network registered in Taiwan with APNIC, originates 12 IPv4 prefixes covering 20.5k addresses. By IPv4 address space that makes it the 7,057th-largest of the 80,743 networks we see originating IPv4, and the 64th-largest of 241 in Taiwan. It is seen behind 1 upstream network, most often AS9674 (Far EastTone Telecommunication Co., Ltd.). Every one of its announcements has 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

12

IPv6 prefixes

0

IPv4 addresses

20.5k

IPv6 /64s

0

Upstream graph

The networks AS18412 is seen behind, one and two hops out, drawn from real AS paths.

AS18412Toward the internet core
Upstream graph for AS18412: 2 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18412Far EastTone Tele…This networkAS9674Far EastTone Tele…AS4780Digital United In…

Networks observed one and two hops upstream of AS18412 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS18412
NetworkCountryRelationshipPathsVantage pts
AS9674Far EastTone Telecommunication Co., Ltd.TWPeer91276

Prefixes

The largest blocks AS18412 originates, widest first.

Largest prefixes originated by AS18412
PrefixAddressesVisibility
39.12.0.0/212k76/76
39.12.8.0/212k76/76
39.12.16.0/212k76/76
39.12.24.0/212k76/76
39.12.32.0/212k76/76
39.12.40.0/212k76/76
39.12.48.0/212k76/76
39.12.56.0/212k76/76
39.12.64.0/221k76/76
39.12.68.0/221k76/76

Routing health

How AS18412'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

  • Valid100.0%12
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%12
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 12 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS18412 started or stopped in this period.

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