Autonomous system
AS18281 TAC-NET Tokoname New-TV Corporation
Hosting ARIN
Summary
Tokoname New-TV Corporation
cable residential japan access
The AS handle TAC-NET is operated by Tokoname New-TV Corporation.
What it's used for
- The address space carries residential cable television and internet access, evidenced by reverse DNS entries such as
catv396000.tac-net.ne.jpandcatv443254.tac-net.ne.jp. - The network announces 20,480 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour, a ratio indicative of an access or eyeball network rather than a transit provider.
Notable
- All RDAP registrants for the announced prefixes are listed as Japan Network Information Center (JPNIC), which is consistent with the standard allocation process for Japanese ISPs and does not indicate a mismatch with the announcer.
- The inventory consists of five /20 IPv4 blocks and one /40 IPv6 block, all located in Japan, with netnames consistently referencing
TAC-NET.
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.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS9354 | Community Network Center Inc. | 332 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 20.48K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 6 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS18281- Registry name
- TAC-NET
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2002-07-01
- Last changed
- 2003-01-17
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 6 valid, 0 with no ROA
- ROAs
- 6 authorising AS18281
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 11 naming AS18281
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: 442 networks and 1,773 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