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AS135566National Telecom Public Company Limited

ThailandRegistryAPNIC

As of 11th November 2026, AS135566 (National Telecom Public Company Limited), a network registered in Thailand with APNIC, originates 49 IPv4 prefixes covering 12.5k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 9,452nd-largest of the 80,743 networks we see originating IPv4, and the 56th-largest of 464 in Thailand. It is seen behind 1 upstream network, most often AS9931 (National Telecom Public Company Limited), and in front of 1 downstream network. 98% 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

49

IPv6 prefixes

6

IPv4 addresses

12.5k

IPv6 /64s

1.4M

Upstream graph

The networks AS135566 is seen behind, one and two hops out, drawn from real AS paths.

AS135566Toward the internet core
Upstream graph for AS135566: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS135566National Telecom …This networkAS9931National Telecom …AS4651The Communication…AS38040TOT Public Compan…

Networks observed one and two hops upstream of AS135566 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
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS135566
NetworkCountryRelationshipPathsVantage pts
AS9931National Telecom Public Company LimitedTHPeer6,684138

Prefixes

All 55

The largest blocks AS135566 originates, widest first.

Largest prefixes originated by AS135566
PrefixAddressesVisibility
122.155.26.0/2425676/76
122.155.27.0/2425676/76
141.140.32.0/2425676/76
141.140.33.0/2425676/76
141.140.34.0/2425676/76
141.140.39.0/2425676/76
164.115.48.0/2425676/76
202.139.197.0/2425676/76
202.139.198.0/2425676/76
202.139.199.0/2425676/76

Routing health

How AS135566'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

  • Valid98.2%54
  • Invalid0.0%0
  • No ROA1.8%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%55
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 49 prefixes

IPv6 — 6 prefixes

  • /441M × /6416.7%1
  • /4865.5k × /6483.3%5

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS135566 started or stopped in this period.

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