Autonomous system
AS45677 ICV Isahaya Cable Media Co.,Ltd
Residential APNIC Cable/DSL/ISP
Summary
Isahaya Cable Media
cable isp residential japan
ICV is operated by Isahaya Cable Media Co.,Ltd.
What it's used for
- The address space carries residential cable access traffic, evidenced by reverse DNS entries such as
dhcp180x148x203x254.mv.icv-net.ne.jpandpool192x92x253x254.pool.icv-net.ne.jp. - The AS announces 9,216 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with 14 observed neighbours, indicating a local access network rather than a transit provider.
- Traffic consists of subscriber eyeballs for the local community in Isahaya, Nagasaki, delivered via cable infrastructure.
Notable
- All registrants for the announced prefixes are listed as Japan Network Information Center with the netname
ICV-NET, consistent with the AS holder. - The address inventory is composed of four distinct IPv4 blocks and one IPv6 block, all registered under the
ICV-NETnetname.
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 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.89.211 |
| BroadBand Internet eXchange Singapore | Singapore, Singapore | 103.231.152.89 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.52 |
| BroadBand Internet eXchange Hong Kong | Hong Kong, China | 103.203.158.89 |
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 4 prefixes · 9.22K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 5 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS45677- Registry name
- ICV
- Registered
- 2009-04-02
- Last changed
- 2019-06-05
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- ISAHAYA CABLE MEDIA co.,Ltd.
- Network type
- Cable/DSL/ISP
- Scope
- Asia Pacific
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-ICM- Present at
- 7 exchanges
- Website
- https://isahaya-media.com/
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 · 5 valid, 0 with no ROA
- ROAs
- 5 authorising AS45677
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 5 naming AS45677
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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