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AS133481AIS Fibre

ThailandRegistryAPNICTypeEyeball

As of 26th September 2026, AS133481 (AIS Fibre), an access network registered in Thailand with APNIC, originates 560 IPv4 prefixes covering 495k addresses and 184 IPv6 prefixes. By IPv4 address space that makes it the 726th-largest of the 79,480 networks we see originating IPv4, and the 8th-largest of 456 in Thailand. It is seen behind 1 upstream network, most often AS45430 (SBN-IIG/AWN-IIG transit provider), and in front of 1 downstream network. 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

560

IPv6 prefixes

184

IPv4 addresses

495k

IPv6 /64s

142M

Upstream graph

The networks AS133481 is seen behind, one and two hops out, drawn from real AS paths.

AS133481Toward the internet core
Upstream graph for AS133481: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS133481AIS FibreThis networkAS45430SBN-IIG/AWN-IIG t…AS9002RETN LimitedAS24482SG.GS

Networks observed one and two hops upstream of AS133481 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
120%
Peers
360%
Downstreams
120%

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

Upstreams of AS133481
NetworkCountryRelationshipPathsVantage pts
AS45430SBN-IIG/AWN-IIG transit providerTHPeer57,765145

Prefixes

All 744

The largest blocks AS133481 originates, widest first.

Largest prefixes originated by AS133481
PrefixAddressesVisibility
49.228.0.0/1665.5k81/81
184.22.0.0/1665.5k81/81
184.82.192.0/1816.4k81/81
49.0.64.0/198.2k81/81
58.64.64.0/198.2k81/81
184.82.160.0/198.2k81/81
49.229.128.0/204.1k81/81
58.64.48.0/204.1k81/81
184.82.64.0/204.1k81/81
184.82.96.0/204.1k81/81

Routing health

How AS133481'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%744
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%744
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 560 prefixes

IPv6 — 184 prefixes

  • /441M × /6471.7%132
  • /4865.5k × /6428.3%52

Recent changes

Announcements that started or stopped since 27th Aug 2026.

15 announced and 47 withdrawn in all; the most recent are shown.

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