AS9434 — ABONE-AS-AP Internet Initiative Japan, Inc.

AS9434 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

AS9434 (ABONE-AS-AP) is registered to Internet Initiative Japan, Inc., Japan's first commercial ISP. The handle recalls A-Bone, IIJ's Asia-Pacific backbone. What the AS actually does today, however, looks nothing like a backbone — the routing evidence points at a small research or measurement network rather than a production carrier.

What it's used for

The inventory is tiny: 1 IPv4 prefix visible in the RIS snapshot (147.28.11.0/24, with 147.28.10.0/24 also seen), 256 to 512 addresses in total, and a single IPv6 /48, 2a06:de00:58::/48. Against that, the AS is observed with roughly 42 BGP neighbours — far more peers than it has routes to give them, and the peers are the usual suspects of a widely-peered experimental setup rather than a Japanese customer base. That inversion (many neighbours, almost no address space) is the signature of a network whose purpose is the paths themselves: route collection, BGP experiments, measurement.

The address space reinforces it. 147.28.0.0/16 is not IIJ space at all; it is registered to RGnet, the network long associated with routing-security and measurement research. IIJ employs research staff in exactly that field, so a legacy IIJ-registered ASN originating RGnet-registered space is coherent as a research vehicle. It is not, on this evidence, IIJ's commercial network — that runs under different ASNs.

Notable

• The registrant (IIJ) and the address space (147.28/16, RGnet) belong to different organisations. The handle alone would mislead you here.
• 42 neighbours on a couple of /24s: peering breadth far out of proportion to the network's size.
• This is a name-versus-inventory case. Treat the AS as a small research/experiment network in IIJ's orbit, not as IIJ's production backbone.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 147.28.11.0/24

Upstream networks

• AS6939 Hurricane Electric LLC
• AS33891 Core-Backbone GmbH
• AS5405 Inter.link GmbH
• AS20766 Association "Gitoyen"
• AS50628 Leonix Telecom SAS
• AS34927 iFog GmbH
• AS20562 Broadband Hosting B.V.
• AS12779 IT.Gate S.p.A.
• AS24482 SG.GS
• AS51706 France IX Services SASU
• AS37721 Virtual Technologies & Solutions

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS33891 Core-Backbone GmbH
• AS5405 Inter.link GmbH
• AS20562 Broadband Hosting B.V.
• AS34927 iFog GmbH
• AS12779 IT.Gate S.p.A.
• AS37721 Virtual Technologies & Solutions
• AS50628 Leonix Telecom SAS
• AS20766 Association "Gitoyen"
• AS51706 France IX Services SASU
• AS24482 SG.GS

Routing security

• RPKI: 1 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-HOSTUS, AS215011:AS-NXTHDR, AS7473:AS-CUSTOMERS:AS3758, AS9434:AS-SET.

Internet exchanges

• Neutral Internet Exchange — Amsterdam, Netherlands
• France-IX Paris — Paris, France