asn.dev

Autonomous system

AS18278 CC9N Cable TV Corporation

Unclassified ARIN Cable/DSL/ISP

IPv4 addresses 47.10K 8 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 3 recorded by PCH
Upstreams 7 1 downstream
Flagged prefixes 0 none

Summary

Cable TV Corporation

Japan · AI-generated

cable isp residential japan

CC9N is the AS handle for Cable TV Corporation, a Japanese cable operator.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS records ending in cc9.ne.jp and netnames like CC9-CIDR-BLK-JP.
  • The AS announces 47104 IPv4 addresses across 8 prefixes and 1 IPv6 prefix, with 21 observed neighbours, indicating a role as an access provider rather than a transit hub.

Notable

  • All registrants for the announced prefixes are listed as Japan Network Information Center, consistent with the AS holder's identity.
  • The address inventory consists of multiple /19, /20, and /22 blocks, reflecting a standard allocation for a regional cable ISP.

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

Full topology · Graph

Internet exchanges

Recorded at 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
BroadBand Internet eXchange TokyoTokyo, Japan101.203.89.78
JPIX TokyoTokyo, Japan210.171.224.136
Equinix Internet Exchange TokyoTokyo, Japan2001:de8:5::1:8278:1

Transit providers

7 upstream, 1 downstream and 13 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2516KDDI CORPORATION281
AS2518BIGLOBE Inc.112
AS6939Hurricane Electric LLC88
AS17676SoftBank Corp.55
AS17639Converge ICT Solutions Inc.10
AS24482SG.GS10
AS20485Joint Stock Company TransTeleCom9

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

Shape and geography

IPv4 8 prefixes · 47.10K addresses IPv6 1 prefixes

CountryNamePrefixes
JPJapan9

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS18278
Registry name
CC9N
Abuse contact
hostmaster@nic.ad.jp
Registered
2002-07-01
Last changed
2020-09-25
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
CableTV Corporation
Network type
Cable/DSL/ISP
Scope
Asia Pacific
Traffic ratio
Heavy Inbound
Peering policy
Open
IRR as-set
AS-CABLETV
Present at
3 exchanges
Facilities
2 facilities
Website
https://www.cc9.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

Full detail
RPKI
100% valid · 10 valid, 0 with no ROA
ROAs
10 authorising AS18278
ASPA
no ASPA record
IRR
100% registered · 10 of 10 announcements
Route objects
10 naming AS18278

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: 445 networks and 1,817 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

Cross-check