Autonomous system
AS38633 VCIU-NET-AS Value Core Inc.
Unclassified APNIC
Summary
Value Core Inc.
business japan corporate
VCIU-NET-AS is operated by Value Core Inc.
What it's used for
- The address space is registered under the netname
VCIU-NET-CIDR-BLK-JPwith the Japan Network Information Center, indicating a corporate allocation in Japan. - The AS announces 4096 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with only 3 observed routing neighbours, suggesting a small-scale internal or business network rather than a transit or large access provider.
- Reverse DNS evidence includes
hth03.mag2-tayori.com, pointing to specific host infrastructure within the allocated space.
Notable
- All three announced IPv4 prefixes share the same registrant (Japan Network Information Center) and netname (
VCIU-NET-CIDR-BLK-JP), consistent with a single corporate entity managing its own address space. - The address inventory is compact, comprising three IPv4 blocks and one IPv6 /32, typical of a mid-sized business or internal corporate 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 2026-10-15, 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 · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 4 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS38633- Registry name
- VCIU-NET-AS
- Registered
- 2007-08-20
- Last changed
- 2008-01-31
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 25% valid · 1 valid, 3 with no ROA
- ROAs
- 1 authorising AS38633
- ASPA
- no ASPA record
- IRR
- 50% registered · 2 of 4 announcements
- Route objects
- 2 naming AS38633
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 1,781 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