subnet.im

AS37904BBIX, Inc.

JapanRegistryAPNIC

As of 10th November 2026, AS37904 (BBIX, Inc.), a network registered in Japan with APNIC, originates 3 IPv4 prefixes covering 1.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 34,015th-largest of the 80,723 networks we see originating IPv4, and the 529th-largest of 737 in Japan. It is seen behind 3 upstream networks, most often AS63927 (RISE) and AS4775 (Globe Telecoms), and in front of 2 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 75% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

1.3k

IPv6 /64s

65.5k

Upstream graph

The networks AS37904 is seen behind, one and two hops out, drawn from real AS paths.

AS37904Toward the internet core
Upstream graph for AS37904: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS37904BBIX, Inc.This networkAS4775Globe TelecomsAS17676SoftBank Corp.AS63927RISEAS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS137409GSL Networks Pty …

Networks observed one and two hops upstream of AS37904 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

16

adjacent networks

Upstreams
319%
Peers
1169%
Downstreams
213%

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

Upstreams of AS37904
NetworkCountryRelationshipPathsVantage pts
AS63927RISEPHPeer477136
AS4775Globe TelecomsPHAdjacent32
AS17676SoftBank Corp.JPPeer11

Prefixes

The largest blocks AS37904 originates, widest first.

Largest prefixes originated by AS37904
PrefixAddressesVisibility
218.231.244.0/2351276/76
218.231.248.0/2351276/76
126.209.94.0/242561/76
2403:c780:7201::/4865.5k × /6459/63

Routing health

How AS37904'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%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more75.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%25.0%1

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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