Autonomous system
AS4675 U-NETSURF UNIADEX, LTD.
Unclassified AFRINIC
Summary
UNIADEX, Ltd. (U-netSURF)
isp enterprise legacy
U-NETSURF — UNIADEX, Ltd., a Japanese IT infrastructure services company in the BIPROGY (formerly Nihon Unisys) group, and the operator of the U-netSURF internet service.
What it's used for
- U-netSURF internet connectivity, mail and web outsourcing, and related managed services, sold largely to Japanese businesses.
- UNIADEX's own IT infrastructure and integration work.
Notable
- A corporate-leaning ISP: U-netSURF has run since the mid-1990s and rides on NTT East/West FLET'S fibre access rather than on UNIADEX-owned last mile.
- The address space mixes access customers with hosted services (mail, web, certificates), so it is not a pure eyeball network.
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 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.58 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.63 |
| Network Service Provider IXP (Distributed IX in Edo) | Tokyo, Japan | 202.249.2.73 |
Transit providers
6 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 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 13 prefixes · 30.98K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 14 |
Registry
Allocation record
- Registry
- AFRINIC
- Handle
AS4675- Registry name
- U-NETSURF
- Registered
- 1995-08-30
- Last changed
- 2025-12-27
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 63% valid · 5 valid, 3 with no ROA
- ROAs
- 5 authorising AS4675
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 10 naming AS4675
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 1,778 prefixes, as published 2026-10-20. 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