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AS38040TOT Public Company Limited

ThailandRegistryAPNIC

As of 29th September 2026, AS38040 (TOT Public Company Limited), a network registered in Thailand with APNIC, originates 30 IPv4 prefixes covering 23.6k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 6,436th-largest of the 79,607 networks we see originating IPv4, and the 47th-largest of 457 in Thailand. It is seen behind 61 upstream networks, most often AS9002 (RETN Limited) and AS6939 (Hurricane Electric LLC), and in front of 17 downstream networks. 94% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 74% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

30

IPv6 prefixes

4

IPv4 addresses

23.6k

IPv6 /64s

197k

Upstream graph

The networks AS38040 is seen behind, one and two hops out, drawn from real AS paths.

AS38040Toward the internet core
Upstream graph for AS38040: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS38040TOT Public Compan…This networkAS1299Arelion (fka. Tel…AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS6939Hurricane Electri…AS9002RETN LimitedAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS8220COLTAS35280F5 Networks SARLAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS51907Kanton Zug

Networks observed one and two hops upstream of AS38040 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

354

adjacent networks

Upstreams
6117%
Peers
27678%
Downstreams
175%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 61.

Upstreams of AS38040
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer22,25883
AS6939Hurricane Electric LLCUSPeer12,01378
AS3491PCCW Global (HK) Ltd.HKPeer5,70621
AS6453TATA Communications (America) IncUSPeer4,08577
AS1299Arelion (fka. Telia Carrier)SEPeer2,64544
AS23764China Telecom GlobalHKPeer2,49237
AS39122Blacknight Internet Solutions LimitedIEPeer2,1732
AS4637Telstra International LimitedHKPeer2,08426
AS32590Valve CorporationUSPeer2,0644
AS8455atom86 BVNLPeer1,9912

Prefixes

All 34

The largest blocks AS38040 originates, widest first.

Largest prefixes originated by AS38040
PrefixAddressesVisibility
23.194.32.0/198.2k48/82
23.53.16.0/204.1k48/82
23.209.240.0/212k48/82
23.193.220.0/221k48/82
23.200.136.0/221k82/82
23.35.150.0/2351248/82
96.16.126.0/2351248/82
203.153.50.0/2351248/82
45.64.76.0/2425682/82
45.64.77.0/2425681/82

Routing health

How AS38040'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

  • Valid94.1%32
  • Invalid0.0%0
  • No ROA5.9%2

Propagation

  • Globally propagated90% of full-feed peers or more73.5%25
  • Partially propagated40% to 90%23.5%8
  • Seen by few peersUnder 40%2.9%1

Prefix sizes

IPv4 — 30 prefixes

IPv6 — 4 prefixes

  • /4865.5k × /6475.0%3
  • /49 and longerAggregated25.0%1

Recent changes

Announcements that started or stopped since 30th Aug 2026.

No announcement by AS38040 started or stopped in this period.

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