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AS131986

BB4U-NET

ITOCHU Cable Systems Corp.

Registry

Authoritative registration data

AS number
131986
Name
BB4U-NET
Organisation
ITOCHU Cable Systems Corp.
Country
Flag of Japan JP Japan
RIR
APNIC
Registered
—
Source:asn:rdap retrieved

IPv4 prefixes

3

IPv6 prefixes

1

Total announced

4

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS131986
133.32.104.0/22 IPv4 /22 not checked
103.167.44.0/23 IPv4 /23 not checked
133.32.108.0/23 IPv4 /23 not checked
2407:61c0::/32 IPv6 /32 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS131986
Address families
BBIX Tokyo 10,000 Mbps IPv4 · IPv6

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS131986 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

5 networks seen before AS131986 in AS paths

Observed upstreams
Families
AS4637 ASN-TELSTRA-GLOBAL 388 1,072
v4 v6
AS17676 GIGAINFRA 41 140
v4 v6
AS6939 HURRICANE 23 72
v4
AS24482 SGGS-AS-AP 2 45
v4 v6
AS9304 HUTCHISON-AS-AP 2 6
v4

No rows match “”.

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Observed downstreams

0 networks seen after AS131986 in AS paths

No downstreams observed

This AS was not seen carrying traffic towards another network.

Uncertain adjacencies

6 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS2500 WIDE-BB 1 4
v4 v6
AS9002 RETN-AS 1 4
v4 v6
AS18106 VIEWQWEST-SG-AP 1 4
v4 v6
AS49544 i3Dnet 1 3
v4
AS59105 HOMENOC 1 3
v4
AS35280 F5 1 1
v6

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.