asn.dev

Autonomous system

AS2510 INFOWEB - FUJITSU LIMITED

Unclassified APNIC NSP

IPv4 addresses 1.51M 228 prefixes
IPv6 prefixes 30 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 1 recorded by PCH
Upstreams 1 4 downstream
Flagged prefixes 0 none

Summary

Fujitsu (InfoWeb)

Japan · AI-generated

isp residential eyeball legacy

INFOWEB is Fujitsu Limited's consumer internet service, one of Japan's early dial-up and broadband ISPs. The InfoWeb brand later folded into the @nifty service.

What it's used for

  • Consumer internet access for subscribers across Japan.

Notable

  • A large eyeball access network (over a million IPv4 addresses), serving end users rather than acting as a hosting or transit provider. The low AS number reflects an early Japanese-internet allocation.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Network Service Provider IXP (Distributed IX in Edo)Tokyo, Japan202.249.2.106

Transit providers

1 upstream, 4 downstream and 8 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4713NTT DOCOMO BUSINESS,Inc.3,633

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 228 prefixes · 1.51M addresses IPv6 30 prefixes

CountryNamePrefixes
JPJapan258

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS2510
Registry name
INFOWEB
Registered
2002-04-05
Last changed
2024-10-23
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Fujitsu Limited
Also known as
InfoWeb
Network type
NSP
Scope
Regional
Traffic ratio
Balanced
Peering policy
Selective
IRR as-set
AS-INFOWEB

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 62 with no ROA
ROAs
0 authorising AS2510
ASPA
no ASPA record
IRR
100% registered · 62 of 62 announcements
Route objects
65 naming AS2510

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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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

Cross-check