Autonomous system
AS38643 U-CLOUD UNIADEX, LTD.
Unclassified APNIC
Summary
UNIADEX
hosting cloud business japan
U-CLOUD is operated by UNIADEX, LTD.
What it's used for
- The address space carries cloud and server infrastructure, evidenced by the netnames
U-netSURF-CIDR-BLK-JPandU-CLOUDassociated with the announced prefixes. - The AS announces 1792 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio indicative of a hosting or cloud service provider rather than a transit or access network.
- Traffic from this AS consists of web and API endpoints, server workloads, and managed infrastructure services, as UNIADEX provides integrated management of servers, networks, and devices for its clients.
Notable
- Registrants for the largest prefixes are listed as Japan Network Information Center and IRT-JPNIC-JP, which aligns with the announcer UNIADEX, LTD. as a Japanese entity.
- UNIADEX operates the U-Cloud platform, a cloud infrastructure service used by various organizations for system replacement and operational efficiency.
- The inventory consists of three IPv4 prefixes with no IPv6 prefixes announced, reflecting a focused IPv4-centric cloud estate.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 1.79K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 3 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS38643- Registry name
- U-Cloud
- Registered
- 2007-08-20
- Last changed
- 2012-07-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS38643
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 25 naming AS38643
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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