asn.dev

Autonomous system

AS17682 CABLENET296 296 BROAD NET Com Inc

Residential APNIC Cable/DSL/ISP

IPv4 addresses 23.55K 8 prefixes
IPv6 prefixes 29 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 2 recorded by PCH
Upstreams 6 0 downstream
Flagged prefixes 0 none

Summary

296 Broad Net

Japan · AI-generated

cable isp residential japan

CABLENET296 is operated by 296 Broad Net Com Inc.

What it's used for

  • The address space carries cable television and broadband access traffic, evidenced by reverse DNS entries such as 3dd51400.catv296.ne.jp and da285400.catv296.ne.jp.
  • The AS announces 23,552 IPv4 addresses across 8 prefixes and 29 IPv6 prefixes, while maintaining only 14 observed neighbours, a ratio characteristic of an access network rather than a transit provider.

Notable

  • Registrants for the largest prefixes are listed as Japan Network Information Center and IRT-JPNIC-JP, which is standard for Japanese IP allocations managed by JPNIC.
  • The inventory consists of multiple /20 and /22 blocks, including 61.213.16.0/20 and 119.47.16.0/20, reflecting a fragmented but cohesive corporate estate.

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 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
BroadBand Internet eXchange TokyoTokyo, Japan101.203.89.53
JPIX TokyoTokyo, Japan210.171.224.92

Transit providers

6 upstream, 0 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS17676SoftBank Corp.282
AS2516KDDI CORPORATION273
AS6939Hurricane Electric LLC78
AS24482SG.GS13
AS9304HGC Global Communications Limited9
AS9002RETN Limited4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 23.55K addresses IPv6 29 prefixes

CountryNamePrefixes
JPJapan37

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS17682
Registry name
CABLENET296
Abuse contact
hostmaster@nic.ad.jp
Registered
2001-03-26
Last changed
2020-01-14
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
CABLENET296
Network type
Cable/DSL/ISP
Scope
Asia Pacific
Traffic ratio
Heavy Inbound
Peering policy
Open
IRR as-set
AS-CABLENET296
Present at
2 exchanges
Website
http://www.catv296.co.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 · 13 valid, 0 with no ROA
ROAs
13 authorising AS17682
ASPA
no ASPA record
IRR
69% registered · 9 of 13 announcements
Route objects
10 naming AS17682

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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