subnet.im

AS7667KDDI Research, Inc.

JapanRegistryAPNIC

As of 26th September 2026, AS7667 (KDDI Research, Inc.), a network registered in Japan with APNIC, originates 2 IPv4 prefixes covering 1.3k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 33,367th-largest of the 79,516 networks we see originating IPv4, and the 518th-largest of 729 in Japan. It is seen behind 7 upstream networks, most often AS2516 (KDDI Corporation) and AS2500 (WIDE Project). 40% 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

2

IPv6 prefixes

3

IPv4 addresses

1.3k

IPv6 /64s

21M

Upstream graph

The networks AS7667 is seen behind, one and two hops out, drawn from real AS paths.

AS7667Toward the internet core
Upstream graph for AS7667: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7667KDDI Research, In…This networkAS2500WIDE ProjectAS2516KDDI CorporationAS4775Globe TelecomsAS6939Hurricane Electri…AS35280F5 Networks SARLAS2914NTT America, Inc.AS17676SoftBank Corp.AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS1299Arelion (fka. Tel…AS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS7667 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

21

adjacent networks

Upstreams
733%
Peers
1467%
Downstreams
00%

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

Upstreams of AS7667
NetworkCountryRelationshipPathsVantage pts
AS2516KDDI CorporationJPPeer321133
AS2500WIDE ProjectJPPeer1212
AS6939Hurricane Electric LLCUSPeer127
AS49544i3D.net B.VNLPeer21
AS4775Globe TelecomsPHPeer21
AS35280F5 Networks SARLFRPeer21
AS24482SG.GSSGPeer11

Prefixes

The largest blocks AS7667 originates, widest first.

Largest prefixes originated by AS7667
PrefixAddressesVisibility
202.255.44.0/221k80/81
192.26.91.0/2425680/81
2001:200:600::/4016.8M × /6464/64
2001:de1::/424.2M × /6464/64
2001:df0:95::/4865.5k × /6464/64

Routing health

How AS7667'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

  • Valid40.0%2
  • Invalid0.0%0
  • No ROA60.0%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 3 prefixes

  • /4016.8M × /6433.3%1
  • /424.2M × /6433.3%1
  • /4865.5k × /6433.3%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS7667 started or stopped in this period.

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