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AS152184Tamukai Network

JapanRegistryAPNICTypeContent

As of 27th September 2026, AS152184 (Tamukai Network), a content network registered in Japan with APNIC, originates 1 IPv4 prefix covering 256 addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 59,127th-largest of the 79,525 networks we see originating IPv4, and the 639th-largest of 729 in Japan. It is seen behind 2 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS150325 (TSUKUDANI 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

1

IPv6 prefixes

9

IPv4 addresses

256

IPv6 /64s

17.3M

Upstream graph

The networks AS152184 is seen behind, one and two hops out, drawn from real AS paths.

AS152184Toward the internet core
Upstream graph for AS152184: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS152184Tamukai NetworkThis networkAS6939Hurricane Electri…AS150325TSUKUDANI NETWORKAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS38074SDCC Japan-West A…AS150369TelHi Corporation

Networks observed one and two hops upstream of AS152184 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 AS152184
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer55963
AS150325TSUKUDANI NETWORKJPPeer8881

Prefixes

The largest blocks AS152184 originates, widest first.

Largest prefixes originated by AS152184
PrefixAddressesVisibility
140.235.121.0/2425680/81
2a06:41:4000::/4016.8M × /6463/64
2401:3fa0:110::/4865.5k × /6463/64
2401:3fa0:117::/4865.5k × /6463/64
2401:3fa0:11a::/4865.5k × /6463/64
2401:3fa0:11b::/4865.5k × /6463/64
2401:3fa0:11c::/4865.5k × /6463/64
2401:3fa0:11d::/4865.5k × /6463/64
2401:3fa0:11e::/4865.5k × /6463/64
2401:3fa0:11f::/4865.5k × /6463/64

Routing health

How AS152184'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%10
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%10
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 9 prefixes

  • /4016.8M × /6411.1%1
  • /4865.5k × /6488.9%8

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS152184 started or stopped in this period.

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