asn.dev

Autonomous system

AS7678 PROX - Prox System Design Inc.

Hosting ARIN

IPv4 addresses 8.19K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Prox System Design Inc.

Japan · AI-generated

hosting legacy

PROX is Prox System Design Inc., a hosting company in Taito-ku, Tokyo. It sells dedicated servers, VPS, colocation and domain registration, and brands its network services IXENT.

What it's used for

  • Two prefixes, 210.143.96.0/20 and 210.166.208.0/20 — about 8,200 addresses. No IPv6 is announced.
  • Reverse DNS is sparse, which is itself typical of server space: what resolves is infrastructure such as gwNNN.ixent.ne.jp, and the company's public services live on prox.ne.jp and ixent.ne.jp. There are no subscriber pools of any kind.
  • Customer machines are the bulk of the space: rented dedicated servers and virtual private servers, plus co-located customer hardware in a Tokyo facility.

Notable

  • A hosting network, small and single-purpose. Two contiguous /20s with no access addressing is the clean signature of a server business rather than an ISP, and the address space should be treated as datacentre space for geolocation and abuse purposes.

Interesting

  • IXENT is the company's own coinage for its network side rather than any reference to an internet exchange — a handle that invites exactly the wrong reading. The company itself buys upstream transit and does not operate a peering fabric.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4713NTT DOCOMO BUSINESS,Inc.120

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, 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 2 prefixes · 8.19K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS7678
Registry name
PROX
Abuse contact
hostmaster@nic.ad.jp
Registered
1997-11-13
Last changed
2005-01-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS7678
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
34 naming AS7678

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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