Autonomous system
AS18081 KCN - Kintetsu Cable Network Co., Ltd.
Unclassified RIPE Cable/DSL/ISP
Summary
Kintetsu Cable Network
cable isp residential japan
KCN is the AS handle for Kintetsu Cable Network Co., Ltd.
What it's used for
- The address space carries residential cable and DSL access, evidenced by reverse DNS entries such as
user-254127109117.kinet-tv.ne.jpandpon245-254.kcn.ne.jp. - With 442368 IPv4 addresses announced across 9 prefixes and 25 observed neighbours, the high address-to-neighbour ratio indicates an access network serving end-users rather than a transit provider.
Notable
- All registrants in the RDAP data align with the announcer, consistently listing
Kintetsu Cable Network,Ltdunder the IRT-KCN-JP handle. - The address inventory is composed of multiple /16 and /15 blocks, including
117.108.0.0/15and61.86.0.0/16, reflecting a large-scale regional deployment.
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 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.127 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.119 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.76 |
| JPIX Osaka | Osaka, Japan | 103.246.232.119 |
Transit providers
8 upstream, 1 downstream and 15 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 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 442K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 10 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS18081- Registry name
- KCN
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2001-12-27
- Last changed
- 2021-02-24
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Kintetsu Cable Network Co.
- Network type
- Cable/DSL/ISP
- Scope
- Asia Pacific
- Traffic ratio
- Heavy Inbound
- Peering policy
- Open
- IRR as-set
JPIRR::AS-KCN- Present at
- 6 exchanges
- Facilities
- 6 facilities
- Website
- http://www.kcn.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 · 39 valid, 0 with no ROA
- ROAs
- 35 authorising AS18081
- ASPA
- no ASPA record
- IRR
- 100% registered · 39 of 39 announcements
- Route objects
- 97 naming AS18081
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: 448 networks and 1,851 prefixes, as published 2026-11-03. 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