Autonomous system
AS23632 TVT-NET TVT Tsuyama Co.,Ltd.
Unclassified ARIN Cable/DSL/ISP
Summary
TVT Tsuyama
isp residential japan cable
TVT-NET is operated by TVT Tsuyama Co.,Ltd.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS entries such as
211-2-178-0.sidr1.tvt.ne.jpand211-2-179-255.sidr1.tvt.ne.jp. - The AS announces 2560 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a local access provider rather than a transit carrier.
Notable
- Registrants for both announced prefixes are listed as Japan Network Information Center, which is standard for JPNIC-managed allocations in Japan.
- The inventory consists of one /21 block (211.2.176.0/21) and one /23 block (103.171.252.0/23), with no IPv6 prefixes currently announced.
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 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 2.56K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS23632- Registry name
- TVT-NET
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2003-01-31
- Last changed
- 2026-06-24
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- TVT Tsuyama
- Network type
- Cable/DSL/ISP
- Scope
- Not Disclosed
- Traffic ratio
- Heavy Inbound
- Peering policy
- Open
- IRR as-set
AS-TVT- Website
- http://www.tvt.ne.jp
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
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS23632
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 2 announcements
- Route objects
- 0 naming AS23632
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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