Autonomous system
AS55381 CCSNET CITY-CABLE SHUNAN Corporation
Residential ARIN Cable/DSL/ISP
Summary
City Cable Shunan
cable isp residential japan
CCSNET is the AS handle for City Cable Shunan Corporation, a regional cable operator in Yamaguchi Prefecture.
What it's used for
- The address space carries residential cable broadband traffic, evidenced by reverse DNS records pointing to
ccsnet.ne.jpand netnames likeCCSNETandCCSNET-CIDR-BLK-JP. - The AS announces 17,920 IPv4 addresses across 7 prefixes and maintains 6 observed routing neighbours, a ratio consistent with an access network serving local subscribers rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs accessing the internet via cable infrastructure in the Shunan area.
Notable
- All registrants for the announced prefixes are listed as Japan Network Information Center with the IRT contact
IRT-JPNIC-JP, which is standard for Japanese ISP allocations and aligns with the announcer. - The address inventory is composed of seven distinct IPv4 blocks, including a /19 and a /20, with no IPv6 prefixes currently in the inventory.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.182 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.138 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 17.92K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 7 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS55381- Registry name
- CCSNET
- Registered
- 2010-01-18
- Last changed
- 2022-12-07
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- CITY-CABLE SHUNAN Corporation
- Network type
- Cable/DSL/ISP
- Scope
- Asia Pacific
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- Present at
- 3 exchanges
- Website
- https://ccsnet.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
- 0% valid · 0 valid, 18 with no ROA
- ROAs
- 0 authorising AS55381
- ASPA
- no ASPA record
- IRR
- 56% registered · 10 of 18 announcements
- Route objects
- 2 naming AS55381
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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