subnet.im

AS9551King Mongkut's University of Technology

ThailandRegistryAPNIC

As of 12th November 2026, AS9551 (King Mongkut's University of Technology), a network registered in Thailand with APNIC, originates 13 IPv4 prefixes covering 3.3k addresses. By IPv4 address space that makes it the 19,861st-largest of the 80,772 networks we see originating IPv4, and the 108th-largest of 464 in Thailand. It is seen behind 2 upstream networks, most often AS4621 (UniNet Thailand) and AS45458 (SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX). 38% 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

13

IPv6 prefixes

0

IPv4 addresses

3.3k

IPv6 /64s

0

Upstream graph

The networks AS9551 is seen behind, one and two hops out, drawn from real AS paths.

AS9551Toward the internet core
Upstream graph for AS9551: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9551King Mongkut's Un…This networkAS4621UniNet ThailandAS45458SBN-ISP/AWN-ISP a…AS4651The Communication…AS24475ThaiREN.Thailand …AS23884Proen Corp Public…AS45430SBN-IIG/AWN-IIG t…

Networks observed one and two hops upstream of AS9551 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

5

adjacent networks

Upstreams
240%
Peers
360%
Downstreams
00%

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

Upstreams of AS9551
NetworkCountryRelationshipPathsVantage pts
AS4621UniNet ThailandTHPeer86478
AS45458SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIXTHPeer15078

Prefixes

The largest blocks AS9551 originates, widest first.

Largest prefixes originated by AS9551
PrefixAddressesVisibility
49.231.233.0/2425678/78
202.28.4.0/2425678/78
202.28.5.0/2425678/78
202.28.6.0/2425678/78
202.28.7.0/2425678/78
202.44.8.0/2425678/78
202.44.9.0/2425678/78
202.44.10.0/2425678/78
202.44.11.0/2425678/78
202.44.12.0/2425678/78

Routing health

How AS9551'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

  • Valid38.5%5
  • Invalid0.0%0
  • No ROA61.5%8

Propagation

  • Globally propagated90% of full-feed peers or more100.0%13
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 13 prefixes

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS9551 started or stopped in this period.

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