subnet.im

AS9931National Telecom Public Company Limited

ThailandRegistryAPNICTypeEyeball

As of 11th November 2026, AS9931 (National Telecom Public Company Limited), an access network registered in Thailand with APNIC, originates 644 IPv4 prefixes covering 672k addresses and 160 IPv6 prefixes. By IPv4 address space that makes it the 600th-largest of the 80,743 networks we see originating IPv4, and the 6th-largest of 464 in Thailand. It is seen behind 4 upstream networks, most often AS4651 (The Communications Authority of…) and AS38040 (TOT Public Company Limited), and in front of 53 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

644

IPv6 prefixes

160

IPv4 addresses

672k

IPv6 /64s

916M

Upstream graph

The networks AS9931 is seen behind, one and two hops out, drawn from real AS paths.

AS9931Toward the internet core
Upstream graph for AS9931: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9931National Telecom …This networkAS4651The Communication…AS23900Planet Online Lao…AS24187KIRZ Service Prov…AS38040TOT Public Compan…AS2914NTT America, Inc.AS6939Hurricane Electri…AS38082True Internationa…AS9002RETN Limited

Networks observed one and two hops upstream of AS9931 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

121

adjacent networks

Upstreams
43%
Peers
6453%
Downstreams
5344%

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

Upstreams of AS9931
NetworkCountryRelationshipPathsVantage pts
AS4651The Communications Authority of Thailand (CAT)THPeer75,386138
AS38040TOT Public Company LimitedTHPeer43251
AS24187KIRZ Service ProviderTHPeer2323
AS23900Planet Online Laos, Internet Service Provider in LAO PDRLAAdjacent42

Prefixes

All 804

The largest blocks AS9931 originates, widest first.

Largest prefixes originated by AS9931
PrefixAddressesVisibility
114.131.0.0/1665.5k76/76
122.154.0.0/1665.5k76/76
122.154.128.0/1732.8k76/76
61.7.192.0/1816.4k76/76
122.154.64.0/1816.4k76/76
61.19.96.0/198.2k76/76
61.19.160.0/198.2k76/76
61.19.192.0/198.2k76/76
114.131.32.0/198.2k76/76
114.131.128.0/198.2k76/76

Routing health

How AS9931'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%804
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more99.8%802
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.2%2

Prefix sizes

IPv4 — 644 prefixes

IPv6 — 160 prefixes

  • /36268M × /641.9%3
  • /4016.8M × /643.8%6
  • /4865.5k × /6494.4%151

Recent changes

Announcements that started or stopped since 12th Oct 2026.

19 announced and 4 withdrawn in all; the most recent are shown.

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