Autonomous system
AS9434 ABONE-AS-AP Internet Initiative Japan, Inc.
Unclassified APNIC
Summary
Internet Initiative Japan (A-Bone / research)
research legacy
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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.119.128 |
| France-IX Paris | Paris, France | 37.49.238.200 |
Transit providers
11 upstream, 0 downstream and 11 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9434- Registry name
- ABONE-AS-AP
- Registrant
- Internet Initiative Japan, Inc.
- Abuse contact
- abuse-contact@iij.ad.jp
- Registered
- 2025-03-11
- Last changed
- 2025-03-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS9434
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 3 naming AS9434
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,782 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere