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AS131986

ITOCHU Cable Systems Corp.

APNIC JP Announced
More ASNs in Japan →
Organization
ITOCHU Cable Systems Corp.
BB4U-NET
Registered
Aug 04, 2011
15 years ago
IPv4 Prefixes
3
2,048 addresses
IPv6 Prefixes
1
65,536 × /48
BGP Neighbours
11
5 upstream/peer · 0 downstream · 6 collector-only

Registration

The registry's RDAP record for this AS number could not be retrieved; it is looked up again automatically.

AS Number AS131986 AS Name BB4U-NET Country Japan (JP) Registry APNIC Allocated Aug 04, 2011 AS Description BB4U-NET - ITOCHU Cable Systems Corp., JP

IPv4 Prefixes

3 prefixes · 2,048 addresses Routing data as of 2026-10-04 00:00 UTC

PrefixRangeAddresses
103.167.44.0/23103.167.44.0 – 103.167.45.255512
133.32.104.0/22133.32.104.0 – 133.32.107.2551,024
133.32.108.0/23133.32.108.0 – 133.32.109.255512

IPv6 Prefixes

1 prefix · 65,536 × /48 Routing data as of 2026-10-04 00:00 UTC

PrefixAddresses
2407:61c0::/32296

BGP Neighbours

11 unique neighbours · 5 upstream/peer · 0 downstream · 6 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (5)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS4637ASN-TELSTRA-GLOBAL - Telstra Global383712323
AS17676GIGAINFRA - SoftBank Corp.4815320
AS6939HURRICANE - Hurricane Electric LLC23720
AS9304HUTCHISON-AS-AP - HGC Global Communications Limited260
AS24482SGGS-AS-AP - SG.GS23312

Collector-only (6)

Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS2500WIDE-BB - WIDE Project131
AS9002RETN-AS RETN Limited131
AS18106VIEWQWEST-SG-AP - Viewqwest Pte Ltd131
AS35280F5 F5 Networks SARL101
AS49544i3Dnet i3D.net B.V130
AS59105HOMENOC - Home NOC Operators Group130