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AS149766Y.U.T Corporate Company Limited

ThailandRegistryAPNICTypeEyeball

As of 27th September 2026, AS149766 (Y.U.T Corporate Company Limited), an access network registered in Thailand with APNIC, originates 11 IPv4 prefixes covering 5.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 15,301st-largest of the 79,525 networks we see originating IPv4, and the 88th-largest of 456 in Thailand. It is seen behind 1 upstream network, most often AS152599 (YUT-IIG Global Transit Network), and in front of 1 downstream network. 92% 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

11

IPv6 prefixes

1

IPv4 addresses

5.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS149766 is seen behind, one and two hops out, drawn from real AS paths.

AS149766Toward the internet core
Upstream graph for AS149766: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS149766Y.U.T Corporate C…This networkAS152599YUT-IIG Global Tr…AS45430SBN-IIG/AWN-IIG t…AS132337Axclusive

Networks observed one and two hops upstream of AS149766 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

7

adjacent networks

Upstreams
114%
Peers
571%
Downstreams
114%

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

Upstreams of AS149766
NetworkCountryRelationshipPathsVantage pts
AS152599YUT-IIG Global Transit NetworkTHPeer1,036145

Prefixes

The largest blocks AS149766 originates, widest first.

Largest prefixes originated by AS149766
PrefixAddressesVisibility
44.32.80.0/212k81/81
103.185.146.0/2351281/81
185.84.160.0/2351281/81
81.31.234.0/2425681/81
103.185.146.0/2425681/81
103.185.147.0/2425681/81
103.203.42.0/2425681/81
140.150.152.0/2425681/81
151.244.255.0/2425681/81
185.84.160.0/2425681/81

Routing health

How AS149766'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

  • Valid91.7%11
  • Invalid0.0%0
  • No ROA8.3%1

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 — 11 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced103.203.42.0/2422nd Sept 2026
  • Withdrawn46.37.121.0/2421st Sept 2026
  • Withdrawn91.210.146.0/2421st Sept 2026

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